コード例 #1
0
ファイル: texture.cpp プロジェクト: mutnig/vdrift
void GenTexture(const SDL_Surface * surface, const TEXTUREINFO & info, GLuint & id, bool & alphachannel, std::ostream & error)
{
	//detect channels
	bool compression = (surface->w > 512 || surface->h > 512) && !info.normalmap;
	bool srgb = info.srgb;
	int format;
	int internalformat = compression ? (srgb ? GL_COMPRESSED_SRGB : GL_COMPRESSED_RGB) : (srgb ? GL_SRGB8 : GL_RGB);
	switch (surface->format->BytesPerPixel)
	{
		case 1:
			format = GL_LUMINANCE;
			internalformat = compression ? GL_COMPRESSED_LUMINANCE : GL_LUMINANCE;
			alphachannel = false;
			break;
		case 2:
			format = GL_LUMINANCE_ALPHA;
			internalformat = compression ? GL_COMPRESSED_LUMINANCE_ALPHA : GL_LUMINANCE_ALPHA;
			alphachannel = true;
			break;
		case 3:
#ifdef __APPLE__
            format = GL_BGR;
#else
			format = GL_RGB;
#endif
            internalformat = compression ? (srgb ? GL_COMPRESSED_SRGB : GL_COMPRESSED_RGB) : (srgb ? GL_SRGB8 : GL_RGB);
			alphachannel = false;
			break;
		case 4:
#ifdef __APPLE__
            format = GL_BGRA;
#else
			format = GL_RGBA;
#endif
			internalformat = compression ? (srgb ? GL_COMPRESSED_SRGB_ALPHA : GL_COMPRESSED_RGBA) : (srgb ? GL_SRGB8_ALPHA8 : GL_RGBA);
			alphachannel = true;
			break;
		default:
#ifdef __APPLE__
            format = GL_BGR;
#else
            format = GL_RGB;
#endif
			break;
	}

	glGenTextures(1, &id);
	OPENGL_UTILITY::CheckForOpenGLErrors("Texture ID generation", error);

	// Create MipMapped Texture
	glBindTexture(GL_TEXTURE_2D, id);
	if (info.repeatu)
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	else
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	if (info.repeatv)
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	else
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

	if (info.mipmap)
	{
		if (info.nearest)
		{
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST_MIPMAP_NEAREST);
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
		}
		else
		{
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
		}
		if (!glGenerateMipmap) // this kind of automatic mipmap generation is deprecated in GL3, so don't use it
			glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
	}
	else
	{
		if (info.nearest)
		{
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
		}
		else
		{
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
			glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
		}
	}
	glTexImage2D( GL_TEXTURE_2D, 0, internalformat, surface->w, surface->h, 0, format, GL_UNSIGNED_BYTE, surface->pixels );
	OPENGL_UTILITY::CheckForOpenGLErrors("Texture creation", error);

	// If we support generatemipmap, go ahead and do it regardless of the info.mipmap setting.
	// In the GL3 renderer the sampler decides whether or not to do mip filtering, so we conservatively make mipmaps available for all textures.
	if (glGenerateMipmap)
		glGenerateMipmap(GL_TEXTURE_2D);

	//check for anisotropy
	if (info.anisotropy > 1)
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)info.anisotropy);
	}
}
コード例 #2
0
ファイル: lfshowcase.c プロジェクト: jonodubs/LFManip
void ourInit(int Width, int Height)
{
   int n,i,j;

  loadOffsets();

  struct jpeg_decompress_struct cinfo;
  struct jpeg_error_mgr jerr;
  JSAMPROW row_pointer[1];
  unsigned long location = 0;

  cinfo.err = jpeg_std_error(&jerr);
  jpeg_create_decompress(&cinfo);

  for (i = 0; i<2; i++)
  for (n = 0; n<NUM_PIC[i]; n++)
  {
    jpeg_stdio_src(&cinfo, fd[i][n]);
    jpeg_read_header(&cinfo, 0);
    cinfo.scale_num = 1;
    cinfo.scale_denom = SCALE;
    jpeg_start_decompress(&cinfo);
    wid[i][n] = cinfo.output_width;
    hei[i][n] = cinfo.output_height;
    dep[i][n] = cinfo.num_components; //should always be 3
    image[i][n] = (unsigned char *) malloc(wid[i][n] * hei[i][n] * dep[i][n]);
    row_pointer[0] = (unsigned char *) malloc(wid[i][n] * dep[i][n]);
    /* read one scan line at a time */
    while( cinfo.output_scanline < cinfo.output_height )
    {
        jpeg_read_scanlines( &cinfo, row_pointer, 1 );
        for( j=0; j< (wid[i][n] * dep[i][n]); j++)
                image[i][n][location++] = row_pointer[0][j];
    }
    location = 0;
    fclose(fd[i][n]);
    jpeg_finish_decompress(&cinfo);
  }

  jpeg_destroy_decompress(&cinfo);

  ourBuildTextures();


   // Color to clear color buffer to.
   glClearColor(0.1f, 0.1f, 0.1f, 0.0f);

   // Depth to clear depth buffer to; type of test.
   glClearDepth(1.0);
   glDepthFunc(GL_LESS);

   // Enables Smooth Color Shading; try GL_FLAT for (lack of) fun.
   glShadeModel(GL_SMOOTH);

   // Load up the correct perspective matrix; using a callback directly.
   cbResizeScene(Width,Height);

   // Set up a light, turn it on.
   glLightfv(GL_LIGHT1, GL_POSITION, Light_Position);
   glLightfv(GL_LIGHT1, GL_AMBIENT,  Light_Ambient);
//   glLightfv(GL_LIGHT1, GL_DIFFUSE,  Light_Diffuse);
   glEnable (GL_LIGHT1);

   // A handy trick -- have surface material mirror the color.
   glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
   glEnable(GL_COLOR_MATERIAL);
   
   glutSetCursor(GLUT_CURSOR_NONE);
   

      glEnable(GL_TEXTURE_RECTANGLE_ARB);


      glDisable(GL_LIGHTING);
      glEnable(GL_LIGHTING);

       glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);

    // If we're blending, we don't want z-buffering.

       glDisable(GL_DEPTH_TEST);
       glEnable(GL_BLEND);



       glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,
                                           GL_NEAREST_MIPMAP_NEAREST);
       glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
  
   
}
コード例 #3
0
void intro_init( void )
{
    // create openGL functions
    for (int i=0; i<NUM_GL_NAMES; i++) glFP[i] = (GenFP)wglGetProcAddress(glnames[i]);

    // create noise Texture
#ifdef FLOAT_TEXTURE
    for (int i = 0; i < NOISE_TEXTURE_SIZE * NOISE_TEXTURE_SIZE * NOISE_TEXTURE_SIZE * 4; i++)
    {
        noiseData[i] = frand() - 0.5f;
    }
#else
    for (int i = 0; i < NOISE_TEXTURE_SIZE * NOISE_TEXTURE_SIZE * NOISE_TEXTURE_SIZE * 4; i++)
    {
        noiseData[i] = (unsigned char)rand();
    }
#endif

    // Create and link shader and stuff:
    // I will have to separate these to be able to use more than one shader...
    // TODO: I should make some sort of compiling and linking loop...

    // init objects:
    GLuint vMainObject = glCreateShader(GL_VERTEX_SHADER);
    GLuint fMainBackground = glCreateShader(GL_FRAGMENT_SHADER);
    GLuint fOffscreenCopy = glCreateShader(GL_FRAGMENT_SHADER);
    shaderPrograms[0] = glCreateProgram();
    shaderPrograms[1] = glCreateProgram();
    // compile sources:
    glShaderSource(vMainObject, 1, &vertexMainObject, NULL);
    glCompileShader(vMainObject);
    glShaderSource(fMainBackground, 1, &fragmentMainBackground, NULL);
    glCompileShader(fMainBackground);
    glShaderSource(fOffscreenCopy, 1, &fragmentOffscreenCopy, NULL);
    glCompileShader(fOffscreenCopy);

#ifdef SHADER_DEBUG
    // Check programs
    int tmp, tmp2;
    glGetShaderiv(vMainObject, GL_COMPILE_STATUS, &tmp);
    if (!tmp)
    {
        glGetShaderInfoLog(vMainObject, 4096, &tmp2, err);
        err[tmp2]=0;
        MessageBox(hWnd, err, "vMainObject shader error", MB_OK);
        return;
    }
    glGetShaderiv(fMainBackground, GL_COMPILE_STATUS, &tmp);
    if (!tmp)
    {
        glGetShaderInfoLog(fMainBackground, 4096, &tmp2, err);
        err[tmp2]=0;
        MessageBox(hWnd, err, "fMainBackground shader error", MB_OK);
        return;
    }
    glGetShaderiv(fOffscreenCopy, GL_COMPILE_STATUS, &tmp);
    if (!tmp)
    {
        glGetShaderInfoLog(fOffscreenCopy, 4096, &tmp2, err);
        err[tmp2]=0;
        MessageBox(hWnd, err, "fOffscreeCopy shader error", MB_OK);
        return;
    }
#endif

    // link shaders:
    glAttachShader(shaderPrograms[0], vMainObject);
    glAttachShader(shaderPrograms[0], fMainBackground);
    glLinkProgram(shaderPrograms[0]);
    glAttachShader(shaderPrograms[1], vMainObject);
    glAttachShader(shaderPrograms[1], fOffscreenCopy);
    glLinkProgram(shaderPrograms[1]);

    // Set texture.
    glEnable(GL_TEXTURE_3D); // automatic?
    glGenTextures(1, &noiseTexture);
    glBindTexture(GL_TEXTURE_3D, noiseTexture);
    glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_REPEAT);
#ifdef FLOAT_TEXTURE
    glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA32F,
                 NOISE_TEXTURE_SIZE, NOISE_TEXTURE_SIZE, NOISE_TEXTURE_SIZE,
                 0, GL_RGBA, GL_FLOAT, noiseData);
#else
    glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA8,
                 NOISE_TEXTURE_SIZE, NOISE_TEXTURE_SIZE, NOISE_TEXTURE_SIZE,
                 0, GL_RGBA, GL_UNSIGNED_BYTE, noiseData);
#endif

    // Create a rendertarget texture
    glGenTextures(1, &offscreenTexture);
    glBindTexture(GL_TEXTURE_2D, offscreenTexture);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, OFFSCREEN_WIDTH, OFFSCREEN_HEIGHT, 0,
                 GL_RGBA, GL_UNSIGNED_BYTE, 0);
    //glBindTexture(GL_TEXTURE_2D, 0);
}
コード例 #4
0
ファイル: opengltest.cpp プロジェクト: yanaitamon/opengltest
void userSettings(void)
{
  lighting(currentLighting);
  materials(currentMaterials);

  if ( lightingEnabled ) {
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);
  } else {
    glDisable(GL_LIGHTING);
    glDisable(GL_LIGHT0);
  }

  if ( smoothEnabled ) {
    glShadeModel(GL_SMOOTH);
  } else {
    glShadeModel(GL_FLOAT);
  }

  if ( idleSpin ) {
    glutIdleFunc(spinCube);
  } else {
    glutIdleFunc(NULL);
  }

  if ( texEnabled ) {
    glEnable(GL_TEXTURE_2D);
  } else {
    glDisable(GL_TEXTURE_2D);
  }

  if ( fastTexture ) {
    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
  } else {
    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
  }

  if ( mipmapEnabled ) {
    glTexParameterf(GL_TEXTURE_2D, 
      GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
  } else {
    glTexParameterf(GL_TEXTURE_2D, 
      GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  }

  if ( fogEnabled )
  {
    float fogColor[] = {0.7, 0.6, 0.6, 1.0};

    glClearColor(fogColor[0], fogColor[1], fogColor[2], fogColor[3]);
    glEnable(GL_FOG);
    glFogi(GL_FOG_MODE, GL_LINEAR);
    glFogf(GL_FOG_DENSITY, 1.0);
    glFogf(GL_FOG_START, zNear);
    glFogf(GL_FOG_END, zFar);
    glFogfv(GL_FOG_COLOR, fogColor);
  }
  else
  {
    glDisable(GL_FOG);
    glClearColor(0.0, 0.0, 0.0, 1.0 );
  }

  if ( lineAAEnabled )
    glEnable(GL_BLEND);
  else
    glDisable(GL_BLEND);

  if ( lineAAEnabled ) {
    glEnable( GL_LINE_SMOOTH );
    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
  } else {
    glDisable( GL_LINE_SMOOTH );
  }

  if ( depthEnabled )
    glEnable(GL_DEPTH_TEST);
  else
    glDisable(GL_DEPTH_TEST);

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();

  if ( perspectiveXform ) {
    glFrustum(-1.25, 1.25, -1.25, 1.25, zNear, zFar);
    viewxform_z = -5.0;
  } else {
    glOrtho(-2.0, 2.0, -2.0, 2.0, zNear, zFar);
    viewxform_z = -5.0;
  }
  glMatrixMode(GL_MODELVIEW);
}
コード例 #5
0
ファイル: triangle.c プロジェクト: Blito/myAHRS_plus
/***********************************************************
 * Name: init_textures
 *
 * Arguments:
 *       CUBE_STATE_T *state - holds OGLES model info
 *
 * Description:   Initialise OGL|ES texture surfaces to use image
 *                buffers
 *
 * Returns: void
 *
 ***********************************************************/
static void init_textures(CUBE_STATE_T *state)
{
   // load three texture buffers but use them on six OGL|ES texture surfaces
   load_tex_images(state);
   glGenTextures(6, &state->tex[0]);

   // setup first texture
   glBindTexture(GL_TEXTURE_2D, state->tex[0]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf1);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   // setup second texture - reuse first image
   glBindTexture(GL_TEXTURE_2D, state->tex[1]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf1);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   // third texture
   glBindTexture(GL_TEXTURE_2D, state->tex[2]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf2);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   // fourth texture  - reuse second image
   glBindTexture(GL_TEXTURE_2D, state->tex[3]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf2);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   //fifth texture
   glBindTexture(GL_TEXTURE_2D, state->tex[4]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf3);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   // sixth texture  - reuse third image
   glBindTexture(GL_TEXTURE_2D, state->tex[5]);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, IMAGE_SIZE, IMAGE_SIZE, 0,
                GL_RGB, GL_UNSIGNED_BYTE, state->tex_buf3);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (GLfloat)GL_NEAREST);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, (GLfloat)GL_NEAREST);

   // setup overall texture environment
   glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
   glEnableClientState(GL_TEXTURE_COORD_ARRAY);
   
   glEnable(GL_TEXTURE_2D);
}
コード例 #6
0
ファイル: ofxFBOTexture.cpp プロジェクト: Displav/Stripes
void ofxFBOTexture::allocate(int w, int h, bool autoClear, int numSamples) {
        _isActive = false;

        texData.width = w;
        texData.height = h;

	if( numSamples == 0 ){
		bUseMultiSample = false;
	}else{
		bUseMultiSample = true;
	}

    if (GLEE_ARB_texture_rectangle){
        texData.tex_w = w;
        texData.tex_h = h;
        texData.textureTarget = GL_TEXTURE_RECTANGLE_ARB;
    } else {
        texData.tex_w = ofNextPow2(w);
        texData.tex_h = ofNextPow2(h);
    }

        if (GLEE_ARB_texture_rectangle){
                texData.tex_t = w;
                texData.tex_u = h;
        } else {
                texData.tex_t = 1.0f;
                texData.tex_u = 1.0f;
        }

        // attempt to free the previous bound texture, if we can:
        clean();

        texData.width = w;
        texData.height = h;
        texData.bFlipTexture = true;
        texData.glType = GL_RGBA;

        this->autoClear = autoClear;
		

		if( bUseMultiSample ){

			// MULTISAMPLE //
			
			//THEO Create the render buffer for depth
			glGenRenderbuffersEXT(1, &depthBuffer);
			glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depthBuffer);
			glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, numSamples, GL_DEPTH_COMPONENT, texData.tex_w, texData.tex_h);

			//THEO multi sampled color buffer
			glGenRenderbuffersEXT(1, &colorBuffer);
			glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, colorBuffer);
			glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, numSamples, GL_RGBA8, texData.tex_w, texData.tex_h);
			
			
			//THEO create fbo for multi sampled content and attach depth and color buffers to it
			glGenFramebuffersEXT(1, &mfbo);
			glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, mfbo);
			glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, colorBuffer);
			glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, depthBuffer);
		}else{
			
			//THEO Create the render buffer for depth
			glGenRenderbuffersEXT(1, &depthBuffer);
			glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depthBuffer);
			glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, texData.tex_w, texData.tex_h);
		}
		
		// NORMAL // 
		
        // create & setup texture
        glGenTextures(1, (GLuint *)(&texData.textureID));   // could be more then one, but for now, just one
        glBindTexture(texData.textureTarget, (GLuint)(texData.textureID));
        glTexParameterf(texData.textureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameterf(texData.textureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        glTexParameterf(texData.textureTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameterf(texData.textureTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexImage2D(texData.textureTarget, 0, texData.glType, texData.tex_w, texData.tex_h, 0, texData.glType, GL_UNSIGNED_BYTE, 0);
        glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

		// create & setup FBO
        glGenFramebuffersEXT(1, &fbo);
        glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
		
        // attach it to the FBO so we can render to it
        glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, texData.textureTarget, (GLuint)texData.textureID, 0);

		
		if( !bUseMultiSample ){
			// Attach the depth render buffer to the FBO as it's depth attachment
			glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, depthBuffer);
		}

        GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
        if(status != GL_FRAMEBUFFER_COMPLETE_EXT) {
                cout<<"glBufferTexture failed to initialize. Perhaps your graphics card doesnt support the framebuffer extension? If you are running osx prior to system 10.5, that could be the cause"<<endl;
                std::exit(1);
        }
        clear(0, 0, 0, 0);

        glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

        texData.bAllocated = true;

}
コード例 #7
0
void OITWeightedAverage::VInit(GraphicsWindow* window)
{
	m_width = window->getWindowWidth();
	m_height = window->getWindowHeight();

	// Load accumulation shader for accumulating all the transparent matrials, as well as their alphas.
	m_accumTransparencyShader = new GLSLProgram();
	m_accumTransparencyShader->initShaderProgram("AccumTransparencyVert.glsl","","","","AccumTransparencyFrag.glsl");

	// Load accumulation shader for accumulating all the transparent matrials, as well as their alphas.
	m_accumTransparencyBillboardsShader = new GLSLProgram();
	m_accumTransparencyBillboardsShader->initShaderProgram("AccumTransparencyBillboardsVert.glsl","","","","AccumTransparencyBillboardsFrag.glsl");

	// Load accumulation shader for accumulating all the transparent matrials, as well as their alphas.
	m_accumTransparencySmokeParticleSystemShader = new GLSLProgram();
	m_accumTransparencySmokeParticleSystemShader->initShaderProgram("AccumTransparencySmokeParticleSystemVert.glsl","","","","AccumTransparencySmokeParticleSystemFrag.glsl");

	// Load Weighted Average shader, which will be used for final compositing (a variation of screen filling quad shader using multiple textures).
	m_weightedAverageShader = new GLSLProgram();
	m_weightedAverageShader->initShaderProgram("WeightedAverageVert.glsl","","","","WeightedAverageFrag.glsl");

	// Load screen filling quad shader.
	m_screenFillingQuadShader = new GLSLProgram();
	m_screenFillingQuadShader->initShaderProgram("ScreenFillingQuadVert.glsl","","","","ScreenFillingQuadFrag.glsl");

	// Create framebuffer for tranparent objects overdraw count.
	m_accumFrameBuffer = new Framebuffer(window->getWindowWidth(),window->getWindowHeight());

	m_activeColorAttachments.push_back(0);
	m_activeColorAttachments.push_back(1);

	m_accumFrameBuffer->setColorAttachment(0);
	m_accumFrameBuffer->setColorAttachment(1);

	m_accumFrameBuffer->setDepthStencilTexture();

	m_accumFrameBuffer->unbind();

	// Additional textures to pass for the second transparency render pass.
	m_additionalTexturesTransparency.push_back(m_accumFrameBuffer->getColorAttachment(0));
	m_additionalTexturesTransparency.push_back(m_accumFrameBuffer->getColorAttachment(1));

	// Create screen filling quad.
	m_compositeScreenFillingQuad = new Quad(glm::vec3(-1.0,1.0,0), glm::vec3(-1.0,-1.0,0), glm::vec3(1.0,-1.0,0), glm::vec3(1.0,1.0,0), glm::vec3(0), 0, 0, 0);
	
	m_compositeScreenFillingQuad->initQuad();
	m_compositeScreenFillingQuad->setGLSLProgram(*m_screenFillingQuadShader);
	//m_compositeScreenFillingQuad->setTexture(m_accumFrameBuffer->getColorAttachment(0));

	glGenTextures(1,&m_opaqueTextureHandle);

	glBindTexture(GL_TEXTURE_2D, m_opaqueTextureHandle);

	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, m_width, m_height, 0, GL_RGBA, GL_FLOAT, NULL);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

	glBindTexture(GL_TEXTURE_2D, 0);

	m_additionalTexturesOpaque.push_back(m_opaqueTextureHandle);

	glGenTextures(1,&m_resultTexture);

	glBindTexture(GL_TEXTURE_2D, m_resultTexture);

	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, m_width, m_height, 0, GL_RGBA, GL_FLOAT, NULL);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

	glBindTexture(GL_TEXTURE_2D, 0);

	check_gl_error();
}
コード例 #8
0
void Renderer::Interpolation(const Pipeline &pipeline)
{
	if (this->renderTarget->useFBO)
		glBindTexture(GL_TEXTURE_2D, renderTarget->textureID[1]);
	else
		glBindTexture(GL_TEXTURE_2D, renderTarget->textureID[0]);

	//Texture wrapping( clamp vs. wrap)
	if (pipeline.textureWrap == 0)
	{
#ifdef USE_GLES1
		glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
#else
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
#endif
	}
	else
	{
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	}

	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();

	glBlendFunc(GL_SRC_ALPHA, GL_ZERO);

	glColor4f(1.0, 1.0, 1.0, pipeline.screenDecay);

	glEnable(GL_TEXTURE_2D);


	glEnableClientState(GL_VERTEX_ARRAY);
	glEnableClientState(GL_TEXTURE_COORD_ARRAY);
	glDisableClientState(GL_COLOR_ARRAY);


	//glVertexPointer(2, GL_FLOAT, 0, p);
	//glTexCoordPointer(2, GL_FLOAT, 0, t);
	glInterleavedArrays(GL_T2F_V3F,0,p);


	if (pipeline.staticPerPixel)
	{
		for (int j = 0; j < mesh.height - 1; j++)
		{
			int base = j * mesh.width * 2 * 5;

			for (int i = 0; i < mesh.width; i++)
			{
				int strip = base + i * 10;
				p[strip] = pipeline.x_mesh[i][j];
				p[strip + 1] = pipeline.y_mesh[i][j];

				p[strip + 5] = pipeline.x_mesh[i][j+1];
				p[strip + 6] = pipeline.y_mesh[i][j+1];
			}
		}

	}
	else
	{
		mesh.Reset();
		omptl::transform(mesh.p.begin(), mesh.p.end(), mesh.identity.begin(), mesh.p.begin(), &Renderer::PerPixel);

	for (int j = 0; j < mesh.height - 1; j++)
	{
		int base = j * mesh.width * 2 * 5;

		for (int i = 0; i < mesh.width; i++)
		{
			int strip = base + i * 10;
			int index = j * mesh.width + i;
			int index2 = (j + 1) * mesh.width + i;

			p[strip] = mesh.p[index].x;
			p[strip + 1] = mesh.p[index].y;

			p[strip + 5] = mesh.p[index2].x;
			p[strip + 6] = mesh.p[index2].y;


		}
	}

	}

	for (int j = 0; j < mesh.height - 1; j++)
		glDrawArrays(GL_TRIANGLE_STRIP,j* mesh.width* 2,mesh.width*2);


	glDisable(GL_TEXTURE_2D);

	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

}
コード例 #9
0
void
MSRenderer::renderFrame() {
  // Clear color and depth buffer
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

  // Get the state from QCAR and mark the beginning of a rendering section
  QCAR::State state = QCAR::Renderer::getInstance().begin();

  // Explicitly render the Video Background
  QCAR::Renderer::getInstance().drawVideoBackground();

  glEnable(GL_DEPTH_TEST);
  glEnable(GL_CULL_FACE);
  glEnable(GL_BLEND);
  glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

  // Did we find any trackables this frame?
  for(int tIdx = 0; tIdx < state.getNumTrackableResults(); tIdx++)
  {
  // Get the trackable:
  const QCAR::TrackableResult* trackableResult = state.getTrackableResult(tIdx);
  QCAR::Matrix44F modelViewMatrix =
    QCAR::Tool::convertPose2GLMatrix(trackableResult->getPose());
  MSRenderer::scalePoseMatrix(MSController::getFrameRatio(),
                              1,
                              1,
                              &modelViewMatrix.data[0]);

  // get the target info
  void *userData = trackableResult->getTrackable().getUserData();
  MSTargetInfo *info = static_cast<MSTargetInfo *>(userData);
  MSTexture *tex = info->getTexture();
  MSModel *model = info->getModel();
  // Bind texture to OpenGL if not done yet
  if (!tex->mHasID) {
    glGenTextures(1, &(tex->mTextureID));
    glBindTexture(GL_TEXTURE_2D, tex->mTextureID);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->mWidth,
                 tex->mHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                 (GLvoid*) tex->mData);
    tex->mHasID = true;
  }

  MSRenderer::multiplyMatrix(&modelViewMatrix.data[0],
                             info->getPose(),
                             &modelViewMatrix.data[0]);

  QCAR::Matrix44F modelViewProjection;

  MSRenderer::multiplyMatrix(&projectionMatrix.data[0],
                             &modelViewMatrix.data[0] ,
                             &modelViewProjection.data[0]);

  glUseProgram(shaderProgramID);

  glVertexAttribPointer(vertexHandle, 3, GL_FLOAT, GL_FALSE, 0, model->vertices);
  glVertexAttribPointer(normalHandle, 3, GL_FLOAT, GL_FALSE, 0, model->normals);
  glVertexAttribPointer(textureCoordHandle, 2, GL_FLOAT, GL_FALSE, 0, model->texCoords);

  glEnableVertexAttribArray(vertexHandle);
  glEnableVertexAttribArray(normalHandle);
  glEnableVertexAttribArray(textureCoordHandle);

  glActiveTexture(GL_TEXTURE0);
  glBindTexture(GL_TEXTURE_2D, tex->mTextureID);
  glUniformMatrix4fv(mvpMatrixHandle, 1, GL_FALSE, (GLfloat*)modelViewProjection.data);
  glUniform1i(texSampler2DHandle, 0);
  glDrawElements(GL_TRIANGLES, 3*model->nFaces, GL_UNSIGNED_SHORT, model->faces);
  }

  glDisable(GL_DEPTH_TEST);

  glDisableVertexAttribArray(vertexHandle);
  glDisableVertexAttribArray(normalHandle);
  glDisableVertexAttribArray(textureCoordHandle);

  glDisable(GL_BLEND);

  QCAR::Renderer::getInstance().end();
}
コード例 #10
0
ファイル: RunGL.cpp プロジェクト: marcclintdion/relief
void InitGL( void )//__END_INIT__@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@___BEGIN_INIT__
{
       
       
       
       
        //eyePosition[0]                     =   0.0; 
       // eyePosition[1]                     =   0.0; 
        //eyePosition[2]                     =   4.0;

        look_LEFT_RIGHT                    =   0.0;
        look_UP_DOWN                       =   0.0;
        
        //==========================================================================
        #ifdef WIN32 
            #include "cpp/setPixelFormat.cpp"
            #include "headerFiles/glext_Init_B.cpp" 
            //-------------------------------------
            SetVSyncState(true);        
        #endif
        
//==========================================================================================================================================================================



        
        //====================================================================================================================    
        glGenTextures(1, &shadowMap_2D);
        glBindTexture(GL_TEXTURE_2D, shadowMap_2D);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0);
        glBindTexture(GL_TEXTURE_2D, 0);   
        //--------------------------------------------------------------------------------------------------------------------
        glGenFramebuffers(1, &fboId_2D);
        glBindFramebuffer(GL_FRAMEBUFFER, fboId_2D);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, shadowMap_2D, 0);
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
        //######################################################################################################________SHADERS  
        //######################################################################################################________SHADERS                                        
       
        //================================================================       
  
        //====================================================================================                                          
        #include "_MODEL_FOLDERS_/relief_TristanDean/relief_TristanDean_Init.cpp"                                                                   
        //====================================================================================                                          

                                
          
//=================================================================================================================== 
#include "cubeMaps/cubeMap_INIT.cpp"  



    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);	
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    //glAlphaFunc(GL_GREATER, 0.1);
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);  


//=====================================================================================================================

    



}//__END_INIT__@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@___END_INIT__
コード例 #11
0
ファイル: main.cpp プロジェクト: alexwardCS480/CS480Ward
bool initialize()    
{
    //cout << "Makes it to initalize!" << endl;
    bool loadedSuccess = true;
    char defualtOBJName[] = "iceRink.obj"; //Change to change the default loaded object.
    btCollisionShape *tempShape = NULL;
    btDefaultMotionState *tempMotionState = NULL;
    btScalar tempMass;
    btVector3 tempInertia;
    btRigidBody *tempRigidBody = NULL;
    
    //Collision Masks
    int shapeColidesWith = COL_WALL | COL_SHAPE;
    int wallColidesWith = COL_SHAPE;    
    

//TABLE
    globalObjCount++;
    Vertex *geometry;
    btVector3 tempVect = btVector3(0.0f, 1.0f, 0.0f);
    btScalar planeScaler = 3;
    objTriMesh = new btTriangleMesh();
    loadedSuccess = loadOBJ(defualtOBJName, &geometry);
    if ( !loadedSuccess )
    {
        cout << "OBJ file not found or invalid format" << endl;
        return false;
    }

    glGenBuffers(1, &vbo_geometry);
    glBindBuffer(GL_ARRAY_BUFFER, vbo_geometry);
    glBufferData(GL_ARRAY_BUFFER, sizeof(geometry)*numberTriangles*3, geometry, GL_STATIC_DRAW);

    //Create collision Objects
    //Initalize the Hockey Table.
    tempShape = new btBvhTriangleMeshShape(objTriMesh, true); //Hockey Table
    //tempShape = new btStaticPlaneShape(tempVect, planeScaler);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(0,-15,0)));
    tempMass = 0;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    tempShape->calculateLocalInertia(tempMass, tempInertia);
    btRigidBody::btRigidBodyConstructionInfo shapeRigidBodyCI(tempMass, tempMotionState, tempShape, tempInertia);
    tempRigidBody = new btRigidBody(shapeRigidBodyCI);
    objectsDataList.addObject(0, tempShape, tempMotionState, tempMass, tempInertia, vbo_geometry, numberTriangles, 1, tempRigidBody);
    dynamicsWorld->addRigidBody(tempRigidBody, COL_WALL, wallColidesWith);

    tempRigidBody = NULL;
    delete geometry;
    numberTriangles = 0;
    delete objTriMesh;
    objTriMesh = new btTriangleMesh();

//cout << "Makes it past loading the table!" << endl;

/*
//CUBE
    globalObjCount++;
    Vertex *Cube;
    objTriMesh = new btTriangleMesh();
    btVector3 squareVect = btVector3(0.6f, 0.6f, 0.6f);
    loadedSuccess = loadOBJ("Cube.obj", &Cube);
    if ( !loadedSuccess )
    {
        cout << "OBJ file not found or invalid format" << endl;
        return false;
    }
 
    // Create a Vertex Buffer object to store this vertex info on the GPU
    glGenBuffers(1, &vbo_cube);
    glBindBuffer(GL_ARRAY_BUFFER, vbo_cube);
    glBufferData(GL_ARRAY_BUFFER, sizeof(Cube)*numberTriangles*3, Cube, GL_STATIC_DRAW);

    //Initalize the Cube.
    //tempShape = new btBvhTriangleMeshShape(objTriMesh, true);//Cube

    tempShape = new btBoxShape(squareVect);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(0.5f,4.0f,0.0f)));
    tempMass = 1;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(1, tempShape, tempMotionState, tempMass, tempInertia, vbo_cube, numberTriangles, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(1), COL_SHAPE, shapeColidesWith);

    delete Cube;
    numberTriangles = 0;
    delete objTriMesh;
    objTriMesh = new btTriangleMesh();
 
*/

//CYLINDER
    //Paddle 1
    globalObjCount++;
    Vertex *cylinder;
    btVector3 cylinderVect = btVector3(0.6f, 0.6f, 0.6f);
    objTriMesh = new btTriangleMesh();
    loadedSuccess = loadOBJ("Paddle.obj", &cylinder);
    if ( !loadedSuccess )
    {
        cout << "OBJ file not found or invalid format" << endl;
        return false;
    }

    // Create a Vertex Buffer object to store this vertex info on the GPU
    glGenBuffers(1, &vbo_cylinder);
    glBindBuffer(GL_ARRAY_BUFFER, vbo_cylinder);
    glBufferData(GL_ARRAY_BUFFER, sizeof(cylinder)*numberTriangles*3, cylinder, GL_STATIC_DRAW);

    //Initalize the Cylinder
    //tempShape = new btBvhTriangleMeshShape(objTriMesh, true); //cylinder
    tempShape = new btCylinderShape(cylinderVect);    
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(-2.0f,1.0f,2.0f)));
    tempMass = 1;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    tempShape->calculateLocalInertia(tempMass, tempInertia);
    btRigidBody::btRigidBodyConstructionInfo paddleOneRigidBodyCI(tempMass, tempMotionState, tempShape, tempInertia);
    tempRigidBody = new btRigidBody(paddleOneRigidBodyCI);
    objectsDataList.addObject(1, tempShape, tempMotionState, tempMass, tempInertia, vbo_cylinder, numberTriangles, .5f, tempRigidBody);
    dynamicsWorld->addRigidBody(tempRigidBody, COL_SHAPE, shapeColidesWith);

    //delete cylinder;
    tempRigidBody = NULL;
    numberTriangles = 0;
    delete objTriMesh;
    objTriMesh = new btTriangleMesh();

    cout << "Loaded Paddle 1" << endl;
/*
    //Paddle 2
    globalObjCount++;
    Vertex *cylinder;
    objTriMesh = new btTriangleMesh();
    loadedSuccess = loadOBJ("Paddle.obj", &cylinder);
    if ( !loadedSuccess )
    {
        cout << "OBJ file not found or invalid format" << endl;
        return false;
    }

     Create a Vertex Buffer object to store this vertex info on the GPU
    glGenBuffers(1, &vbo_cylinder);
    glBindBuffer(GL_ARRAY_BUFFER, vbo_cylinder);
    glBufferData(GL_ARRAY_BUFFER, sizeof(cylinder)*numberTriangles*3, cylinder, GL_STATIC_DRAW);

    Initalize the Cylinder
    tempShape = new btBvhTriangleMeshShape(objTriMesh, true); //cylinder
    tempShape = new btCylinderShape(cylinderVect);    
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(2.0f,1.0f,2.0f)));
    tempMass = 1;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(2, tempShape, tempMotionState, tempMass, tempInertia, vbo_cylinder, numberTriangles, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(2), COL_SHAPE, shapeColidesWith);

    delete cylinder;
    numberTriangles = 0;
    delete objTriMesh;
    objTriMesh = new btTriangleMesh();

//SPHERE
    globalObjCount++;
    Vertex *sphere;
    objTriMesh = new btTriangleMesh();
    btScalar sphereScaler = 1;
    loadedSuccess = loadOBJ("Earth.obj", &sphere);
    if ( !loadedSuccess )
    {
        cout << "OBJ file not found or invalid format" << endl;
        return false;
    }

    // Create a Vertex Buffer object to store this vertex info on the GPU
    glGenBuffers(1, &vbo_sphere);
    glBindBuffer(GL_ARRAY_BUFFER, vbo_sphere);
    glBufferData(GL_ARRAY_BUFFER, sizeof(sphere)*numberTriangles*3, sphere, GL_STATIC_DRAW);

    //Initalize the Sphere
    //tempShape = new btBvhTriangleMeshShape(objTriMesh, true); //Sphere
    tempShape = new btSphereShape(sphereScaler); 
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(4.0f,1.0f,1.0f)));
    tempMass = 1;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(1, tempShape, tempMotionState, tempMass, tempInertia, vbo_sphere, numberTriangles, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(1), COL_SHAPE, shapeColidesWith);
 
    delete sphere;
    numberTriangles = 0;
*/

///Walls
/*
    globalObjCount++;
    btVector3 left_wall = btVector3(4.f, 4.f, 4.f);
    tempShape = new btBoxShape( left_wall);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(11, 0, 0.0f)));
    tempMass = 100;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(4, tempShape, tempMotionState, tempMass, tempInertia, 0, 1, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(4), COL_SHAPE, shapeColidesWith);

    globalObjCount++;
    btVector3 top_wall = btVector3(6.f, 6.f, 6.f);
    tempShape = new btBoxShape( top_wall);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(0, 0, 9.5f)));
    tempMass = 100;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(5, tempShape, tempMotionState, tempMass, tempInertia, 0, 1, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(5), COL_SHAPE, shapeColidesWith);

    globalObjCount++;
    btVector3 bottom_wall = btVector3(6.f, 6.f, 6.f);
    tempShape = new btBoxShape( bottom_wall);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(0, 0, -9.f)));
    tempMass = 100;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(6, tempShape, tempMotionState, tempMass, tempInertia, 0, 1, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(6), COL_SHAPE, shapeColidesWith);

    globalObjCount++;
    btVector3 right_wall = btVector3(4.f, 4.f, 4.f);
    tempShape = new btBoxShape( right_wall);
    tempMotionState = new btDefaultMotionState(btTransform(btQuaternion(0,0,0,1), btVector3(-7, 0, 0.0f)));
    tempMass = 100;
    tempInertia = btVector3(0.0f, 0.0f, 0.0f);
    objectsDataList.addObject(7, tempShape, tempMotionState, tempMass, tempInertia, 0, 1, .5f);
    dynamicsWorld->addRigidBody(objectsDataList.getRigidBody(7), COL_SHAPE, shapeColidesWith);
*/

 


    //Clean Up
    //tempShape = NULL;
    //delete objTriMesh;
    //objTriMesh = NULL;
    tempShape = NULL;
    tempMotionState = NULL;

    //--Load vertex shader and fragment shader from 2 text files
    ShaderLoader loader("vertexShader.txt", "fragmentShader.txt");
    program = loader.LoadShader();
    
    //Now we set the locations of the attributes and uniforms
    //this allows us to access them easily while rendering
    loc_position = glGetAttribLocation(program,
                    const_cast<const char*>("v_position"));
    if(loc_position == -1)
    {
        std::cerr << "[F] POSITION NOT FOUND" << std::endl;
        return false;
    }

    loc_uv = glGetAttribLocation(program,
                    const_cast<const char*>("v_uv"));
    if(loc_uv == -1)
    {
        std::cerr << "[F] V_UV NOT FOUND" << std::endl;
        return false;
    }

    loc_mvpmat = glGetUniformLocation(program,
                    const_cast<const char*>("mvpMatrix"));
    if(loc_mvpmat == -1)
    {
        std::cerr << "[F] MVPMATRIX NOT FOUND" << std::endl;
        return false;
    }
    
    //--Init the view and projection matrices
    //  if you will be having a moving camera the view matrix will need to more dynamic
    //  ...Like you should update it before you render more dynamic 
    //  for this project having them static will be fine
    view = glm::lookAt( glm::vec3(.5, 7.0, 0), //Eye Position
                        glm::vec3(.5, 0.0, 0.0), //Focus point
                        glm::vec3(0.0, 0.0, 1.0)); //Positive Y is up

    projection = glm::perspective( 45.0f, //the FoV typically 90 degrees is good which is what this is set to
                                   float(w)/float(h), //Aspect Ratio, so Circles stay Circular
                                   0.01f, //Distance to the near plane, normally a small value like this
                                   100.0f); //Distance to the far plane, 


    // load texture image
    Magick::InitializeMagick("");
    Magick::Image image;
    Magick::Blob m_blob;
    try
        { 
         // Read a file into image object 
         if ( textureFileName != "")
            {
             image.read( textureFileName );
             image.flip();
             image.write(&m_blob, "RGBA");
            }
         else
            {
             throw std::invalid_argument("No texture file found");
            }

        } 
    catch(exception& tmp) 
        { 
         cout << "Error while reading in texture image, texture file not found"  << endl; 
        } 

    int imageWidth = image.columns();
    int imageHeight = image.rows();


    // setup texture
    glGenTextures(1, &aTexture); 
    glActiveTexture(GL_TEXTURE0);
    glBindTexture(GL_TEXTURE_2D, aTexture);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, imageWidth, imageHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, m_blob.data());

    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

    //enable depth testing
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);

    //and its done
    return true;
}
コード例 #12
0
ファイル: main.c プロジェクト: ExMix/OpenGL_ES
GLUSboolean init(GLUSvoid)
{
    GLUSshape background;

    GLUSshape torus;

    GLUStextfile vertexSource;
    GLUStextfile fragmentSource;

    GLfloat viewMatrix[16];

    GLfloat lightDirection[3];

    GLenum none[] = {GL_NONE};

    lightDirection[0] = g_lightPosition[0];
    lightDirection[1] = g_lightPosition[1];
    lightDirection[2] = g_lightPosition[2];

    glusVector3Normalizef(lightDirection);

    //

    glusLoadTextFile("../Example12_ES/shader/rendershadow.vert.glsl", &vertexSource);
    glusLoadTextFile("../Example12_ES/shader/rendershadow.frag.glsl", &fragmentSource);

    glusBuildProgramFromSource(&g_programShadow, (const GLUSchar**) &vertexSource.text, (const GLUSchar**) &fragmentSource.text);

    glusDestroyTextFile(&vertexSource);
    glusDestroyTextFile(&fragmentSource);

    //

    glusLoadTextFile("../Example12_ES/shader/useshadow.vert.glsl", &vertexSource);
    glusLoadTextFile("../Example12_ES/shader/useshadow.frag.glsl", &fragmentSource);

    glusBuildProgramFromSource(&g_program, (const GLUSchar**) &vertexSource.text, (const GLUSchar**) &fragmentSource.text);

    glusDestroyTextFile(&vertexSource);
    glusDestroyTextFile(&fragmentSource);

    //

    g_projectionMatrixShadowLocation = glGetUniformLocation(g_programShadow.program, "u_projectionMatrix");
    g_modelViewMatrixShadowLocation = glGetUniformLocation(g_programShadow.program, "u_modelViewMatrix");
    g_vertexShadowLocation = glGetAttribLocation(g_programShadow.program, "a_vertex");

    //

    g_projectionMatrixLocation = glGetUniformLocation(g_program.program, "u_projectionMatrix");
    g_viewMatrixLocation = glGetUniformLocation(g_program.program, "u_viewMatrix");
    g_modelMatrixLocation = glGetUniformLocation(g_program.program, "u_modelMatrix");
    g_normalMatrixLocation = glGetUniformLocation(g_program.program, "u_normalMatrix");
    g_shadowMatrixLocation = glGetUniformLocation(g_program.program, "u_shadowMatrix");
    g_shadowTextureLocation = glGetUniformLocation(g_program.program, "u_shadowTexture");
    g_colorLocation = glGetUniformLocation(g_program.program, "u_shapeColor");
    g_lightDirectionLocation = glGetUniformLocation(g_program.program, "u_lightDirection");

    g_vertexLocation = glGetAttribLocation(g_program.program, "a_vertex");
    g_normalLocation = glGetAttribLocation(g_program.program, "a_normal");

    //

    glGenTextures(1, &g_shadowTexture);
    glBindTexture(GL_TEXTURE_2D, g_shadowTexture);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, g_shadowTextureSize, g_shadowTextureSize, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, 0);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LESS);

    glBindTexture(GL_TEXTURE_2D, 0);

    //

    glGenFramebuffers(1, &g_fbo);
    glBindFramebuffer(GL_FRAMEBUFFER, g_fbo);

    glDrawBuffers(1, none);
    glReadBuffer(GL_NONE);

    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, g_shadowTexture, 0);

    if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
    {
        printf("GL_FRAMEBUFFER_COMPLETE error 0x%x", glCheckFramebufferStatus(GL_FRAMEBUFFER));

        return GLUS_FALSE;
    }

    glClearDepthf(1.0f);

    glEnable(GL_DEPTH_TEST);

    glEnable(GL_CULL_FACE);

    glBindFramebuffer(GL_FRAMEBUFFER, 0);

    //

    glusCreateTorusf(&torus, 0.5f, 1.0f, 32, 32);
    g_numberIndicesSphere = torus.numberIndices;

    glGenBuffers(1, &g_verticesVBO);
    glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
    glBufferData(GL_ARRAY_BUFFER, torus.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) torus.vertices, GL_STATIC_DRAW);

    glGenBuffers(1, &g_normalsVBO);
    glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
    glBufferData(GL_ARRAY_BUFFER, torus.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) torus.normals, GL_STATIC_DRAW);

    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glGenBuffers(1, &g_indicesVBO);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, torus.numberIndices * sizeof(GLuint), (GLuint*) torus.indices, GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);

    glusDestroyShapef(&torus);

    //

    glusCreatePlanef(&background, 10.0f);
    g_numberIndicesBackground = background.numberIndices;

    glGenBuffers(1, &g_verticesBackgroundVBO);
    glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
    glBufferData(GL_ARRAY_BUFFER, background.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) background.vertices, GL_STATIC_DRAW);

    glGenBuffers(1, &g_normalsBackgroundVBO);
    glBindBuffer(GL_ARRAY_BUFFER, g_normalsBackgroundVBO);
    glBufferData(GL_ARRAY_BUFFER, background.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) background.normals, GL_STATIC_DRAW);

    glBindBuffer(GL_ARRAY_BUFFER, 0);

    glGenBuffers(1, &g_indicesBackgroundVBO);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, background.numberIndices * sizeof(GLuint), (GLuint*) background.indices, GL_STATIC_DRAW);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);

    glusDestroyShapef(&background);

    //

    glUseProgram(g_program.program);

    glusLookAtf(viewMatrix, g_cameraPosition[0], g_cameraPosition[1], g_cameraPosition[2], 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);

    glusMatrix4x4MultiplyVector3f(lightDirection, viewMatrix, lightDirection);

    glUniform3fv(g_lightDirectionLocation, 1, lightDirection);

    glUniform1i(g_shadowTextureLocation, 0);

    // Torus

    glGenVertexArrays(1, &g_vao);
    glBindVertexArray(g_vao);

    glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
    glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_vertexLocation);

    glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
    glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_normalLocation);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);

    // Plane

    glGenVertexArrays(1, &g_vaoBackground);
    glBindVertexArray(g_vaoBackground);

    glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
    glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_vertexLocation);

    glBindBuffer(GL_ARRAY_BUFFER, g_normalsBackgroundVBO);
    glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_normalLocation);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);

    //

    glUseProgram(g_programShadow.program);

    // Torus

    glGenVertexArrays(1, &g_vaoShadow);
    glBindVertexArray(g_vaoShadow);

    glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
    glVertexAttribPointer(g_vertexShadowLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_vertexShadowLocation);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);

    // Plane

    glGenVertexArrays(1, &g_vaoShadowBackground);
    glBindVertexArray(g_vaoShadowBackground);

    glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
    glVertexAttribPointer(g_vertexShadowLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
    glEnableVertexAttribArray(g_vertexShadowLocation);

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);

    //

    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);

    glClearDepthf(1.0f);

    glEnable(GL_DEPTH_TEST);

    glEnable(GL_CULL_FACE);

    // Needed when rendering the shadow map. This will avoid artifacts.
    glPolygonOffset(1.0f, 0.0f);

    return GLUS_TRUE;
}
コード例 #13
0
void init()
{
	// Vertices of a square
	double ext = 1.0;
	vec4 points[NumPoints] = {
		vec4( -ext, -ext,  0, 1.0 ), //v1
		vec4(  ext, -ext,  0, 1.0 ), //v2
		vec4( -ext,  ext,  0, 1.0 ), //v3	
		vec4( -ext,  ext,  0, 1.0 ), //v3	
		vec4(  ext, -ext,  0, 1.0 ), //v2
		vec4(  ext,  ext,  0, 1.0 )  //v4
	};

	// Texture coordinates
	vec2 tex_coords[NumPoints] = {
		vec2( 0.0, 0.0 ),
		vec2( 1.0, 0.0 ),
		vec2( 0.0, 1.0 ),
		vec2( 0.0, 1.0 ),
		vec2( 1.0, 0.0 ),
		vec2( 1.0, 1.0 )
	};

	// Initialize texture objects
	GLuint texture;
	glGenTextures( 1, &texture );

	glBindTexture( GL_TEXTURE_2D, texture );
	glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, WIN_WIDTH, WIN_HEIGHT, 0,
		GL_RGB, GL_FLOAT, frame );
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
	glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
	glActiveTexture( GL_TEXTURE0 );

	// Create and initialize a buffer object
	GLuint buffer;
	glGenBuffers( 1, &buffer );
	glBindBuffer( GL_ARRAY_BUFFER, buffer );
	glBufferData( GL_ARRAY_BUFFER, sizeof(points) + sizeof(tex_coords), NULL, GL_STATIC_DRAW );
	GLintptr offset = 0;
	glBufferSubData( GL_ARRAY_BUFFER, offset, sizeof(points), points );
	offset += sizeof(points);
	glBufferSubData( GL_ARRAY_BUFFER, offset, sizeof(tex_coords), tex_coords );

	// Load shaders and use the resulting shader program
	GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
	glUseProgram( program );

	// set up vertex arrays
	offset = 0;
	GLuint vPosition = glGetAttribLocation( program, "vPosition" );
	glEnableVertexAttribArray( vPosition );
	glVertexAttribPointer( vPosition, 4, GL_FLOAT, GL_FALSE, 0,
		BUFFER_OFFSET(offset) );

	offset += sizeof(points);
	GLuint vTexCoord = glGetAttribLocation( program, "vTexCoord" ); 
	glEnableVertexAttribArray( vTexCoord );
	glVertexAttribPointer( vTexCoord, 2, GL_FLOAT, GL_FALSE, 0,
		BUFFER_OFFSET(offset) );

	glUniform1i( glGetUniformLocation(program, "texture"), 0 );

	glClearColor( 1.0, 1.0, 1.0, 1.0 );
}
コード例 #14
0
bool CFXMosaic::DoFrame(CDemo* pDemo, float fEffectTime, float fDemoTime)
{
	assert(pDemo);

	if(!m_pResTexture)
	{
		FXRuntimeError("Texture resource not found");
		return false;
	}

	UtilGL::Texturing::CTexture2D* pTexture = const_cast<UtilGL::Texturing::CTexture2D*>(((CResourceTexture2D*)m_pResTexture)->GetTexture2D());

	if(!pTexture)
	{
		FXRuntimeError("WARNING: Texture not available");
		return false;
	}

	if(m_vecTiles.size() < 1)
	{
		FXRuntimeError("WARNING: No tiles available");
		return false;
	}

	CVarFloat::CValueFloat valuePosX;
	CVarFloat::CValueFloat valuePosY;
	CVarFloat::CValueFloat valueWidth;
	CVarFloat::CValueFloat valueHeight;
	CVarFloat::CValueFloat valueScale;
	CVarFloat::CValueFloat valueAlpha;
	CVarFloat::CValueFloat valueAngle;
	CVarCombo::CValueCombo valueBlendMode;
	CVarCombo::CValueCombo valueFiltering;
	CVarInt::CValueInt     valueTilesX;
	CVarInt::CValueInt     valueTilesY;
	CVarInt::CValueInt     valueTileSourceWidth;
	CVarInt::CValueInt     valueTileSourceHeight;
	CVarFloat::CValueFloat valueChangeFrequency;
	CVarFloat::CValueFloat valueChangeFreqVariation;

	EvaluateVar("X Position",            fEffectTime, &valuePosX);
	EvaluateVar("Y Position",            fEffectTime, &valuePosY);
	EvaluateVar("Width",                 fEffectTime, &valueWidth);
	EvaluateVar("Height",                fEffectTime, &valueHeight);
	EvaluateVar("Scale",                 fEffectTime, &valueScale);
	EvaluateVar("Alpha",                 fEffectTime, &valueAlpha);
	EvaluateVar("Angle",                 fEffectTime, &valueAngle);
	EvaluateVar("Blend Mode",            fEffectTime, &valueBlendMode);
	EvaluateVar("Filtering",             fEffectTime, &valueFiltering);
	EvaluateVar("Tiles X",               fEffectTime, &valueTilesX);
	EvaluateVar("Tiles Y",               fEffectTime, &valueTilesY);
	EvaluateVar("Tile Source Width",     fEffectTime, &valueTileSourceWidth);
	EvaluateVar("Tile Source Height",    fEffectTime, &valueTileSourceHeight);
	EvaluateVar("Change Frequency",      fEffectTime, &valueChangeFrequency);
	EvaluateVar("Change Freq Variation", fEffectTime, &valueChangeFreqVariation);

	// Change filter mode

	GLint minFilter, magFilter;
	GLfloat fMaxAnisotropy;

	UtilGL::States::Set(UtilGL::States::TEXTURE2D, UtilGL::States::ENABLED);
	pTexture->SetActive();

	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, &minFilter);
	glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, &magFilter);

	if(UtilGL::Extensions::GetAvailableExtensions()->EXT_texture_filter_anisotropic)
	{
		glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fMaxAnisotropy);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f);
	}

	if(valueFiltering.GetValue() == "Yes")
	{
		// If it's point filtering, change it to linear, otherwise leave it as it is

		if(minFilter == GL_NEAREST) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		if(magFilter == GL_NEAREST) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	}
	else
	{
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	}

	CVarFloat* pVarAngle = reinterpret_cast<CVarFloat*>(GetVar("Angle"));
	assert(pVarAngle);

	float fAlpha = valueAlpha.GetValue() > 1.0f ? 1.0f : valueAlpha.GetValue();

	if(fAlpha < ALMOST_ZERO)
	{
		return true;
	}

	CVector4 v4Color(1.0f, 1.0f, 1.0f, fAlpha);
	UtilGL::States::SetColor(v4Color);

	float fAngle = valueAngle.GetValue();

	if(IS_ZERO(fAngle) && !pVarAngle->IsConstant())
	{
		// Avoid aspect ratio problem (see UtilGL::Rendering::DrawRect())
		fAngle = fAngle < 0.0f ? fAngle - (ALMOST_ZERO * 2.0f) : fAngle + (ALMOST_ZERO * 2.0f);
	}

	int nSrcBlend = UtilGL::States::BLEND_SRCALPHA;
	int nDstBlend = UtilGL::States::BLEND_INVSRCALPHA;

	     if(valueBlendMode.GetValue() == "Add")  nDstBlend = UtilGL::States::BLEND_ONE;
	else if(valueBlendMode.GetValue() == "Mult") nDstBlend = UtilGL::States::BLEND_INVSRCALPHA;
	else if(valueBlendMode.GetValue() == "Color Mult")
	{
		nSrcBlend = UtilGL::States::BLEND_DSTCOLOR;
		nDstBlend = UtilGL::States::BLEND_ZERO;
	}

	if(ARE_EQUAL(fAlpha, 1.0f) && valueBlendMode.GetValue() == "Mult" && !pTexture->HasAlpha())
	{
		nSrcBlend = UtilGL::States::BLEND_ONE;
		nDstBlend = UtilGL::States::BLEND_ZERO;
	}

	if(!((nSrcBlend == UtilGL::States::BLEND_ONE  && nDstBlend == UtilGL::States::BLEND_ZERO) ||
		 (nSrcBlend == UtilGL::States::BLEND_ZERO && nDstBlend == UtilGL::States::BLEND_ONE)))
	{
		UtilGL::States::Set(UtilGL::States::BLENDING, UtilGL::States::ENABLED);
		UtilGL::States::Set(UtilGL::States::SRCBLEND, nSrcBlend);
		UtilGL::States::Set(UtilGL::States::DSTBLEND, nDstBlend);
	}
	else
	{
		UtilGL::States::Set(UtilGL::States::BLENDING, UtilGL::States::DISABLED);
	}

	UtilGL::States::Set(UtilGL::States::LIGHTING,  UtilGL::States::DISABLED);
	UtilGL::States::Set(UtilGL::States::ZBUFFER,   UtilGL::States::DISABLED);

	UtilGL::Transforming::ClearMatrix(UtilGL::Transforming::MATRIX_WORLD);
	UtilGL::Transforming::ClearMatrix(UtilGL::Transforming::MATRIX_VIEW);

	UtilGL::Transforming::ClearMatrix(UtilGL::Transforming::MATRIX_PROJECTION);
	glMatrixMode(GL_PROJECTION);
	glOrtho(0, pTexture->GetWidth(), pTexture->GetHeight(), 0, 0.0f, 10.0f);


	// Update ***********


	int nImgTilesX = pTexture && valueTileSourceWidth.GetValue()  > 0 ? pTexture->GetWidth()  / valueTileSourceWidth.GetValue()  : 1;
	int nImgTilesY = pTexture && valueTileSourceHeight.GetValue() > 0 ? pTexture->GetHeight() / valueTileSourceHeight.GetValue() : 1;

	float fChangePeriod = IS_ZERO(valueChangeFrequency.GetValue()) ? FLOAT_MAX : 1.0f / valueChangeFrequency.GetValue();

	if(fChangePeriod < 0.0001f) fChangePeriod = 0.0001f;

	while(MYFABSF(m_fLastUpdate - fEffectTime) > fChangePeriod)
	{
		int nRandTile = rand() % m_vecTiles.size();

		m_vecTiles[nRandTile].nImgTileX = rand() % nImgTilesX;
		m_vecTiles[nRandTile].nImgTileY = rand() % nImgTilesY;

		if(fEffectTime < m_fLastUpdate)
		{
			m_fLastUpdate -= fChangePeriod;
		}
		else
		{
			m_fLastUpdate += fChangePeriod;
		}
	}


	// Render ***********


	VECTILES::iterator it;

	float fUTileWidth  = (float)valueTileSourceWidth.GetValue()  / (float)pTexture->GetWidth();
	float fVTileHeight = (float)valueTileSourceHeight.GetValue() / (float)pTexture->GetHeight();

	int nTilesX = valueTilesX.GetValue() < 1 ? 1 : valueTilesX.GetValue();
	int nTilesY = valueTilesY.GetValue() < 1 ? 1 : valueTilesY.GetValue();

	for(it = m_vecTiles.begin(); it < m_vecTiles.end(); ++it)
	{
		STile tile = *it;

		float fTileWidth  = pTexture->GetWidth()  / (float)nTilesX;
		float fTileHeight = pTexture->GetHeight() / (float)nTilesY;
		float fPosX       = ((valuePosX.GetValue() - 0.5f) * pTexture->GetWidth())  + (fTileWidth  * tile.nX);
		float fPosY       = ((valuePosY.GetValue() - 0.5f) * pTexture->GetHeight()) + (fTileHeight * tile.nY);
		float fScaleX     = valueWidth.GetValue()  * valueScale.GetValue();
		float fScaleY     = valueHeight.GetValue() * valueScale.GetValue();
		float fU          = tile.nImgTileX * fUTileWidth;
		float fV          = 1.0f - (tile.nImgTileY * fVTileHeight);
		float fU2         = fU + fUTileWidth;
		float fV2         = fV - fVTileHeight;

		CVector3 v3Center(pTexture->GetWidth() * 0.5f, pTexture->GetHeight() * 0.5f, -5.0f);

		CMatrix worldMtx;
		worldMtx.SetIdentity();

		worldMtx.Translate(fPosX, fPosY, 0.0f);
		worldMtx.Translate(-v3Center.X(), -v3Center.Y(), 0.0f);
		worldMtx.Scale    (fScaleX, fScaleY, 1.0f);
		worldMtx.RotateZ  (fAngle);
		worldMtx.Translate(+v3Center.X(), +v3Center.Y(), 0.0f);

		UtilGL::Transforming::SetMatrix(UtilGL::Transforming::MATRIX_WORLD, worldMtx);

		glBegin(GL_QUADS);

		glTexCoord2f(fU, fV);
		glVertex3f(0.0f, 0.0f, -5.0f);

		glTexCoord2f(fU, fV2);
		glVertex3f(0.0f, fTileHeight, -5.0f);

		glTexCoord2f(fU2, fV2);
		glVertex3f(fTileWidth, fTileHeight, -5.0f);

		glTexCoord2f(fU2, fV);
		glVertex3f(fTileWidth, 0.0f, -5.0f);

		glEnd();
	}

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	gluPerspective(60.0f, pDemo->GetAspect(), 1.0f, 1000.0f);

	// Restore filtering

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter);
	UtilGL::States::Set(UtilGL::States::TEXTURE2D, UtilGL::States::DISABLED);

	if(UtilGL::Extensions::GetAvailableExtensions()->EXT_texture_filter_anisotropic)
	{
		glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fMaxAnisotropy);
		glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, fMaxAnisotropy);
	}

	UtilGL::States::Set(UtilGL::States::TEXTURE2D, UtilGL::States::DISABLED);
	UtilGL::States::Set(UtilGL::States::BLENDING,  UtilGL::States::DISABLED);
	UtilGL::States::Set(UtilGL::States::ZBUFFER,   UtilGL::States::ENABLED);

	return true;
}
コード例 #15
0
Scene::Scene(Window& window) : OGLRenderer(window)
{	
	//used as friend class
	AssetsManager::InitializeMeshes();

	/*m_DebugShader = new Shader(SHADERDIR"debugVertex.glsl", SHADERDIR"debugFragment.glsl");
	if (!m_DebugShader->LinkProgram()){
		return;
	}

	m_DefaultLightShader = new Shader(SHADERDIR"TechVertex.glsl", SHADERDIR"TechLightFragment.glsl");
	if (!m_DefaultLightShader->LinkProgram()){
		return;
	}

	m_DefaultShadowShader = new Shader(SHADERDIR"TechVertex.glsl", SHADERDIR"TechShadowFragment.glsl");
	if (!m_DefaultShadowShader->LinkProgram()){
		return;
	}

	m_ShadowVolumeShader = new Shader(SHADERDIR"TechVertex.glsl", SHADERDIR"PassThroughFragment.glsl", SHADERDIR"ShadowVolumeGeometry.glsl");
	if (!m_ShadowVolumeShader->LinkProgram()){
		return;
	}*/
	SceneShader = new Shader(SHADERDIR"TardisVertex.glsl", SHADERDIR"TardisFragment.glsl");
	if (!SceneShader->LinkProgram()){
		return;
	}

	ShadowShader = new Shader(SHADERDIR"shadowVert.glsl", SHADERDIR"shadowFrag.glsl");
	if (!ShadowShader->LinkProgram()){
		return;
	}
	////*******************************
	////**		CUBE MAP			**
	////*******************************
	////for sky box
	m_skyboxShader = new Shader(SHADERDIR"skyboxVertex.glsl", SHADERDIR"skyboxFragment.glsl");
	if (!m_skyboxShader->LinkProgram()){
		return;
	}

	cubeMap = SOIL_load_OGL_cubemap(
		TEXTUREDIR"skyBox/sky_pos_z.jpg",
		TEXTUREDIR"skyBox/sky_neg_z.jpg",
		TEXTUREDIR"skyBox/sky_pos_y.jpg",
		TEXTUREDIR"skyBox/sky_neg_y.jpg",
		TEXTUREDIR"skyBox/sky_neg_x.jpg",
		TEXTUREDIR"skyBox/sky_pos_x.jpg",
		SOIL_LOAD_RGB, SOIL_CREATE_NEW_ID, 0);

	if (!cubeMap)
	{
		return;
	}
	m_ParticleShader = new Shader(SHADERDIR"ParticleVertex.glsl",
		SHADERDIR"ParticleFragment.glsl",
		SHADERDIR"ParticleGeometry.glsl");

	if (!m_ParticleShader->LinkProgram()) {
		return;
	}

	m_RootParticleList = new ParticleEmitter();

	m_Camera = new Camera();
	m_RootGameObject = new GameObject();	//root is created here

	m_RootGameObject->m_Scene = this;

	m_AmbientColour = Vector3(0.2f, 0.2f, 0.2f);
	m_InvLightDirection = Vector3(0.5f, 1.0f, -0.8f);
	m_SpecularIntensity = 128.0f;

	m_InvLightDirection.Normalise();

	m_ScreenDTex = NULL;
	m_ScreenCTex = NULL;
	m_ScreenFBO = NULL;
	BuildScreenFBO();

	clearcolor = Vector4(0.6f, 0.6f, 0.6f, 1.f);
	glClearColor(clearcolor.x, clearcolor.y, clearcolor.z, clearcolor.w);

	NCLDebug::LoadShaders();

	init = true;

	lightList.push_back(Light(Vector3(0, 175, 0),//position
		Vector4(1, 1, 1, 1), //light color
		600.0f //light radius
		, 2.0f // brightness
		, Vector3(1, 1, 1)
		));
	lightList.push_back(Light(Vector3(0, 1.5f, 0),//position
		Vector4(1, 1, 1, 1), //light color
		1.0f //light radius
		, 50.0f // brightness
		, Vector3(1, 1, 1)
		));
	

	glGenTextures(1, &shadowTex);
	glBindTexture(GL_TEXTURE_2D, shadowTex);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
		SHADOWSIZE, SHADOWSIZE, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE,
		GL_COMPARE_R_TO_TEXTURE);
	glBindTexture(GL_TEXTURE_2D, 0);

	// create shadow FBO and bind depth texture
		glGenFramebuffers(1, &shadowFBO);
	glBindFramebuffer(GL_FRAMEBUFFER, shadowFBO);
	//for (int i = 0; i < 6; i++) {
	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, shadowTex, 0);
	glDrawBuffer(GL_NONE);
	//}
	glBindFramebuffer(GL_FRAMEBUFFER, 0);
	glEnable(GL_DEPTH_TEST);

}
コード例 #16
0
void QGLFramebufferObjectPrivate::init(QGLFramebufferObject *q, const QSize &sz,
                                       QGLFramebufferObject::Attachment attachment,
                                       GLenum texture_target, GLenum internal_format, GLint samples)
{
    QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext());
    fbo_guard.setContext(ctx);

    bool ext_detected = (QGLExtensions::glExtensions() & QGLExtensions::FramebufferObject);
    if (!ext_detected || (ext_detected && !qt_resolve_framebufferobject_extensions(ctx)))
        return;

    size = sz;
    target = texture_target;
    // texture dimensions

    QT_RESET_GLERROR(); // reset error state
    GLuint fbo = 0;
    glGenFramebuffers(1, &fbo);
    glBindFramebuffer(GL_FRAMEBUFFER_EXT, fbo);
    fbo_guard.setId(fbo);

    glDevice.setFBO(q, attachment);

    QT_CHECK_GLERROR();
    // init texture
    if (samples == 0) {
        glGenTextures(1, &texture);
        glBindTexture(target, texture);
        glTexImage2D(target, 0, internal_format, size.width(), size.height(), 0,
                GL_RGBA, GL_UNSIGNED_BYTE, NULL);
#ifndef QT_OPENGL_ES
        glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
#else
        glTexParameterf(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameterf(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glTexParameterf(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameterf(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
#endif
        glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
                target, texture, 0);

        QT_CHECK_GLERROR();
        valid = checkFramebufferStatus();
        glBindTexture(target, 0);

        color_buffer = 0;
    } else {
        GLint maxSamples;
        glGetIntegerv(GL_MAX_SAMPLES_EXT, &maxSamples);

        samples = qBound(0, int(samples), int(maxSamples));

        glGenRenderbuffers(1, &color_buffer);
        glBindRenderbuffer(GL_RENDERBUFFER_EXT, color_buffer);
        if (glRenderbufferStorageMultisampleEXT && samples > 0) {
            glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                internal_format, size.width(), size.height());
        } else {
            samples = 0;
            glRenderbufferStorage(GL_RENDERBUFFER_EXT, internal_format,
                size.width(), size.height());
        }

        glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
                                     GL_RENDERBUFFER_EXT, color_buffer);

        QT_CHECK_GLERROR();
        valid = checkFramebufferStatus();

        if (valid)
            glGetRenderbufferParameteriv(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_SAMPLES_EXT, &samples);
    }

    // In practice, a combined depth-stencil buffer is supported by all desktop platforms, while a
    // separate stencil buffer is not. On embedded devices however, a combined depth-stencil buffer
    // might not be supported while separate buffers are, according to QTBUG-12861.

    if (attachment == QGLFramebufferObject::CombinedDepthStencil
        && (QGLExtensions::glExtensions() & QGLExtensions::PackedDepthStencil)) {
        // depth and stencil buffer needs another extension
        glGenRenderbuffers(1, &depth_buffer);
        Q_ASSERT(!glIsRenderbuffer(depth_buffer));
        glBindRenderbuffer(GL_RENDERBUFFER_EXT, depth_buffer);
        Q_ASSERT(glIsRenderbuffer(depth_buffer));
        if (samples != 0 && glRenderbufferStorageMultisampleEXT)
            glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                GL_DEPTH24_STENCIL8_EXT, size.width(), size.height());
        else
            glRenderbufferStorage(GL_RENDERBUFFER_EXT,
                GL_DEPTH24_STENCIL8_EXT, size.width(), size.height());

        stencil_buffer = depth_buffer;
        glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
                                     GL_RENDERBUFFER_EXT, depth_buffer);
        glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
                                     GL_RENDERBUFFER_EXT, stencil_buffer);

        valid = checkFramebufferStatus();
        if (!valid) {
            glDeleteRenderbuffers(1, &depth_buffer);
            stencil_buffer = depth_buffer = 0;
        }
    }

    if (depth_buffer == 0 && (attachment == QGLFramebufferObject::CombinedDepthStencil
        || (attachment == QGLFramebufferObject::Depth)))
    {
        glGenRenderbuffers(1, &depth_buffer);
        Q_ASSERT(!glIsRenderbuffer(depth_buffer));
        glBindRenderbuffer(GL_RENDERBUFFER_EXT, depth_buffer);
        Q_ASSERT(glIsRenderbuffer(depth_buffer));
        if (samples != 0 && glRenderbufferStorageMultisampleEXT) {
#ifdef QT_OPENGL_ES
            if (QGLExtensions::glExtensions() & QGLExtensions::Depth24) {
                glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                    GL_DEPTH_COMPONENT24_OES, size.width(), size.height());
            } else {
                glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                    GL_DEPTH_COMPONENT16, size.width(), size.height());
            }
#else
            glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                GL_DEPTH_COMPONENT, size.width(), size.height());
#endif
        } else {
#ifdef QT_OPENGL_ES
            if (QGLExtensions::glExtensions() & QGLExtensions::Depth24) {
                glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24_OES, 
                                        size.width(), size.height());
            } else {
                glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT16, 
                                        size.width(), size.height());
            }
#else
            glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, size.width(), size.height());
#endif
        }
        glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
                                     GL_RENDERBUFFER_EXT, depth_buffer);
        valid = checkFramebufferStatus();
        if (!valid) {
            glDeleteRenderbuffers(1, &depth_buffer);
            depth_buffer = 0;
        }
    }

    if (stencil_buffer == 0 && (attachment == QGLFramebufferObject::CombinedDepthStencil)) {
        glGenRenderbuffers(1, &stencil_buffer);
        Q_ASSERT(!glIsRenderbuffer(stencil_buffer));
        glBindRenderbuffer(GL_RENDERBUFFER_EXT, stencil_buffer);
        Q_ASSERT(glIsRenderbuffer(stencil_buffer));
        if (samples != 0 && glRenderbufferStorageMultisampleEXT) {
#ifdef QT_OPENGL_ES
            glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                GL_STENCIL_INDEX8_EXT, size.width(), size.height());
#else
            glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples,
                GL_STENCIL_INDEX, size.width(), size.height());
#endif
        } else {
#ifdef QT_OPENGL_ES
            glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_STENCIL_INDEX8_EXT,
                                  size.width(), size.height());
#else
            glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_STENCIL_INDEX,
                                  size.width(), size.height());
#endif
        }
        glFramebufferRenderbuffer(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
                                  GL_RENDERBUFFER_EXT, stencil_buffer);
        valid = checkFramebufferStatus();
        if (!valid) {
            glDeleteRenderbuffers(1, &stencil_buffer);
            stencil_buffer = 0;
        }
    }

    // The FBO might have become valid after removing the depth or stencil buffer.
    valid = checkFramebufferStatus();

    if (depth_buffer && stencil_buffer) {
        fbo_attachment = QGLFramebufferObject::CombinedDepthStencil;
    } else if (depth_buffer) {
        fbo_attachment = QGLFramebufferObject::Depth;
    } else {
        fbo_attachment = QGLFramebufferObject::NoAttachment;
    }

    glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo);
    if (!valid) {
        if (color_buffer)
            glDeleteRenderbuffers(1, &color_buffer);
        else
            glDeleteTextures(1, &texture);
        if (depth_buffer)
            glDeleteRenderbuffers(1, &depth_buffer);
        if (stencil_buffer && depth_buffer != stencil_buffer)
            glDeleteRenderbuffers(1, &stencil_buffer);
        glDeleteFramebuffers(1, &fbo);
        fbo_guard.setId(0);
    }
    QT_CHECK_GLERROR();

    format.setTextureTarget(target);
    format.setSamples(int(samples));
    format.setAttachment(fbo_attachment);
    format.setInternalTextureFormat(internal_format);
}
コード例 #17
0
ファイル: glf.c プロジェクト: BackupTheBerlios/toped-svn
/* Load BMF file format, function return bitmap font descriptor */
int glfLoadBMFFont(char *FName)
{
	FILE *f;
	char Header[4];
	char FontName[97];
	int i, flag;
	int LEndian;
	float tx, ty, tw, th;
	unsigned char temp, *tp;
	unsigned *texture;	/* Texture image */
	unsigned *mask;	/* Mask texture */
	int twidth, theight, tcomp;	/* Image parameters */
	float *temp_width;

	LEndian = LittleEndian();

	f = fopen(FName, "rb");
	if (f == NULL) return GLF_ERROR; /* Error opening file */

	/* Get header */
	fread(Header, 1, 3, f);
	Header[3] = 0;
	if (strcmp(Header, "BMF")) return GLF_ERROR; /* Not BMF format */

	/* Get font name */
	fread(FontName, 1, 96, f);
	FontName[96] = 0;

	/* Allocate space for temp widths */
	
	temp_width = (float *)malloc(sizeof(float)*256);

	/* Read all 256 symbols information */
	for (i=0; i<256; i++)
	{
		fread(&tx, 4, 1, f);
		fread(&ty, 4, 1, f);
		fread(&tw, 4, 1, f);
		fread(&th, 4, 1, f);

		if (!LEndian)
		{
			tp = (unsigned char *)&tx;
			temp = tp[0]; tp[0] = tp[3]; tp[3] = temp;
			temp = tp[1]; tp[1] = tp[2]; tp[2] = temp;
			tp = (unsigned char *)&ty;
			temp = tp[0]; tp[0] = tp[3]; tp[3] = temp;
			temp = tp[1]; tp[1] = tp[2]; tp[2] = temp;
			tp = (unsigned char *)&tw;
			temp = tp[0]; tp[0] = tp[3]; tp[3] = temp;
			temp = tp[1]; tp[1] = tp[2]; tp[2] = temp;
			tp = (unsigned char *)&th;
			temp = tp[0]; tp[0] = tp[3]; tp[3] = temp;
			temp = tp[1]; tp[1] = tp[2]; tp[2] = temp;
		}
		
		Symbols[i].x = tx;
		Symbols[i].y = ty;
		Symbols[i].width  = tw;
		Symbols[i].height = th;
		temp_width[i] = tw;
	}

	/* Read texture image from file and build texture */
	texture = read_texture(f, &twidth, &theight, &tcomp);
	/* Generate mask texture */
	mask = texture_to_mask(texture, twidth, theight);

	/* Find unused font descriptor */
	flag = 0;
	for (i=0; i<MAX_FONTS; i++)
		if (bmf_in_use[i] == 0)
		{
			/* Initialize this font */
			bmf_in_use[i] = 1;
			bmf_curfont = i;
			flag = 1;
			break;
		}
	if (!flag) /* Not enought space for new texture */
	{
		fclose(f);
		free(texture);
		free(mask);
		free(temp_width);
		return -1;
	}

	m_widths[bmf_curfont].width = temp_width;

	/* Generating textures for font and mask */
	glGenTextures(1, &bmf_texture[bmf_curfont]);
	glGenTextures(1, &bmf_mask[bmf_curfont]);


	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

	/* Build font texture */
	glBindTexture(GL_TEXTURE_2D, bmf_texture[bmf_curfont]);
	glTexImage2D(GL_TEXTURE_2D, 0, 3, twidth, theight, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
	
	/* Linear filtering for better quality */
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	
	/* Build mask texture */
	glBindTexture(GL_TEXTURE_2D, bmf_mask[bmf_curfont]);
	glTexImage2D(GL_TEXTURE_2D, 0, 3, twidth, theight, 0, GL_RGBA, GL_UNSIGNED_BYTE, mask);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

	free(texture);
	free(mask);
	fclose(f);

	/* Now build list for each symbol */
	list_base[bmf_curfont] = glGenLists(256);
	for (i=0; i<256; i++)
	{
		glNewList(list_base[bmf_curfont]+i, GL_COMPILE);
		
		glBegin(GL_QUADS);
			glTexCoord2f(Symbols[i].x, Symbols[i].y); glVertex2f(0, 0);
			glTexCoord2f(Symbols[i].x+Symbols[i].width, Symbols[i].y); glVertex2f(Symbols[i].width, 0);
			glTexCoord2f(Symbols[i].x+Symbols[i].width, Symbols[i].y+Symbols[i].height); glVertex2f(Symbols[i].width, Symbols[i].height);
			glTexCoord2f(Symbols[i].x, Symbols[i].y+Symbols[i].height); glVertex2f(0, Symbols[i].height);
		glEnd();
		glTranslatef(Symbols[i].width+sym_space, 0, 0);

		glEndList();
		if (Symbols[i].height > m_max_height[bmf_curfont]) m_max_height[bmf_curfont] = Symbols[i].height;
	}
	return bmf_curfont;
}
コード例 #18
0
// Do an actual card upload (well, at least tell the OpenGL driver you'd like one when it 
// gets a chance) of a texture.  Called from the Render_* functions when they require
// use of a texture that is marked for updating (THANDLE_UPDATE)
void THandle_Update(geRDriver_THandle *THandle)
{		
	if(THandle->PixelFormat.Flags & RDRIVER_PF_2D)
	{
		if(THandle->PixelFormat.PixelFormat == GE_PIXELFORMAT_24BIT_RGB)
		{
			if(THandle->Width <= maxTextureSize && THandle->Height <= maxTextureSize)
			{
				GLubyte *dest;

				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
				
				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
				glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
			
				glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.5f);

				dest = (GLubyte*)malloc(THandle->PaddedWidth * THandle->PaddedHeight * 4);

				CkBlit24_32(dest, THandle->PaddedWidth, THandle->PaddedHeight, THandle->Data[0], 
					THandle->Width, THandle->Height);

				glTexImage2D(GL_TEXTURE_2D, 0, 4, THandle->PaddedWidth, THandle->PaddedHeight, 
					0, GL_RGBA, GL_UNSIGNED_BYTE, dest); 

				free(dest);
			}
			else
			{
				if(THandle->Data[1] != NULL)
				{
					free(THandle->Data[1]);
				}

				THandle->Data[1] = (GLubyte*)malloc(THandle->Width * THandle->Height * 4);

				CkBlit24_32(THandle->Data[1], THandle->Width, THandle->Height, THandle->Data[0],
					THandle->Width, THandle->Height);
			}
		}
	}
	else
	{
#ifdef USE_LINEAR_INTERPOLATION 
 #ifdef TRILINEAR_INTERPOLATION
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 #else 
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 #endif
#else
 #ifdef TRILINEAR_INTERPOLATION
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 #else
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 #endif
#endif 

		if(THandle->PixelFormat.PixelFormat == GE_PIXELFORMAT_32BIT_ABGR)
		{
			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
			
			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 1.0f);
			
			gluBuild2DMipmaps(GL_TEXTURE_2D, 4, THandle->Width, THandle->Height, GL_RGBA,
				GL_UNSIGNED_BYTE, THandle->Data[0]);
		}
		else
		{
			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
			
			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.0f);
			
			gluBuild2DMipmaps(GL_TEXTURE_2D, 3, THandle->Width, THandle->Height, 
				GL_RGB, GL_UNSIGNED_BYTE, THandle->Data[0]);
		}

		if (bUseAnisotropicFiltering)
		{
			glTexParameterf(GL_TEXTURE_2D, GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, fMaxAnisotropy);
		}

	}

	THandle->Flags &= ~THANDLE_UPDATE;
}
コード例 #19
0
ファイル: Obj.cpp プロジェクト: palmerst/CS-4ZP6
void Obj::render(glm::vec3 pos, float angle)
{

    for(int q = 0; q < gpuDataList.size(); q++)
    {

        ObjGPUData* gpuData = gpuDataList[q];
        Shader* requiredShader = shaderList[q];

        if(currentShader != requiredShader)
        {
            glUseProgram(requiredShader->shaderProgram);
            currentShader = requiredShader;
        }


        /*** Bind VAO associated w/ object ***/
        glBindVertexArray(gpuData->vertexArrayObj);

        /*** Iterate through all of the object pieces and render ***/
        for(int i = 0; i < gpuData->materialIndices.size()/2; i++)
        {

            unsigned int first = (gpuData->materialIndices)[i*2];
            unsigned int last;

            if((2*i + 2) > (gpuData->materialIndices.size() - 1))
                last = gpuData->fList.size();
            else
                last = (gpuData->materialIndices)[i*2 + 2];

            unsigned int totalElements = last - first;

            std::map<std::string, GLuint>::iterator uniformID;
            std::map<std::string, GLuint>::iterator mapEnd = currentShader->uniformIDMap.end();

            /***  Bind the textures required by the object piece ***/
            uniformID = currentShader->uniformIDMap.find("Texture");
            if(uniformID != mapEnd)
            {
                glActiveTexture(GL_TEXTURE0);
                glBindTexture(GL_TEXTURE_2D, (gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].texture);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
                glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 4);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 11);
                glUniform1i(currentShader->uniformIDMap.find("Texture")->second, 0);
            }

            uniformID = currentShader->uniformIDMap.find("Bump");
            if(uniformID != mapEnd)
            {
                glActiveTexture(GL_TEXTURE1);
                glBindTexture(GL_TEXTURE_2D, (gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].bump);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
                glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 4);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 11);
                glUniform1i(currentShader->uniformIDMap.find("Bump")->second, 1);
            }

            /***  Calculate transformations used in rendering the object piece and pass to shaders ***/
            glm::mat4 modelMatNoTranslate;
            glm::mat4 modelMat;
            if(transformOverrides){
                modelMatNoTranslate =  shearOverrideList[q] * glm::rotate(glm::mat4(1.0f), angle + rotationOverrideList[q], glm::vec3(0, 0, 1)) * glm::scale(glm::mat4(1.0f), modelScale) * gpuData->rotation * gpuData->unitScale;
                modelMat = glm::translate(glm::mat4(1.0f), pos + translationOverrideList[q]) * modelMatNoTranslate;
            } else {
                modelMatNoTranslate = glm::rotate(glm::mat4(1.0f), angle, glm::vec3(0, 0, 1)) * glm::scale(glm::mat4(1.0f), modelScale) * gpuData->rotation * gpuData->unitScale;
                modelMat = glm::translate(glm::mat4(1.0f), pos) * modelMatNoTranslate;
            }
            glm::mat4 modelViewMat = matView*modelMat;
            glm::mat3 modelView3x3 = glm::mat3(modelViewMat);
            glm::mat4 MVP = matProjection*modelViewMat;
            glm::mat3 normalMat = glm::transpose(glm::inverse(glm::mat3(modelViewMat)));
            glm::vec4 primaryLightPos_ViewSpace = matView * primaryLightPos;

            uniformID = currentShader->uniformIDMap.find("parallax");
            if(uniformID != mapEnd)
                glUniform1i(uniformID->second, gpuData->parallax);

            uniformID = currentShader->uniformIDMap.find("texturePlane");
            if(uniformID != mapEnd)
                glUniform1i(uniformID->second, gpuData->texturePlane);

            uniformID = currentShader->uniformIDMap.find("MVP");
            if(uniformID != mapEnd)
                glUniformMatrix4fv(uniformID->second, 1, GL_FALSE, &MVP[0][0]);

            uniformID = currentShader->uniformIDMap.find("ModelViewMatrix");
            if(uniformID != mapEnd)
                glUniformMatrix4fv(uniformID->second, 1, GL_FALSE, &modelViewMat[0][0]);

            uniformID = currentShader->uniformIDMap.find("ModelView3x3");
            if(uniformID != mapEnd)
                glUniformMatrix3fv(uniformID->second, 1, GL_FALSE, &modelView3x3[0][0]);

            uniformID = currentShader->uniformIDMap.find("ModelMatrix");
            if(uniformID != mapEnd)
                glUniformMatrix4fv(uniformID->second, 1, GL_FALSE, &modelMat[0][0]);

            uniformID = currentShader->uniformIDMap.find("ModelMatrixNoTranslate");
            if(uniformID != mapEnd)
                glUniformMatrix4fv(uniformID->second, 1, GL_FALSE, &modelMatNoTranslate[0][0]);

            uniformID = currentShader->uniformIDMap.find("NormalMatrix");
            if(uniformID != mapEnd)
                glUniformMatrix3fv(uniformID->second, 1, GL_FALSE, &normalMat[0][0]);

            uniformID = currentShader->uniformIDMap.find("ProjectionMatrix");
            if(uniformID != mapEnd)
                glUniformMatrix4fv(uniformID->second, 1, GL_FALSE, &matProjection[0][0]);

            uniformID = currentShader->uniformIDMap.find("Material.Ka");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &((gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].Ka)[0]);

            uniformID = currentShader->uniformIDMap.find("Material.Kd");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &((gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].Kd)[0]);

            uniformID = currentShader->uniformIDMap.find("Material.Ks");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &((gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].Ks)[0]);

            uniformID = currentShader->uniformIDMap.find("Material.shine");
            if(uniformID != mapEnd)
                glUniform1f(uniformID->second, ((gpuData->materials)[(gpuData->materialIndices)[i*2 + 1]].shine));

            uniformID = currentShader->uniformIDMap.find("Light.Position");
            if(uniformID != mapEnd)
                glUniform4fv(uniformID->second, 1, &primaryLightPos_ViewSpace[0]);
            //    glUniform4fv(uniformID->second, 1, &primaryLightPos[0]);

            uniformID = currentShader->uniformIDMap.find("Light.La");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &primaryLightLa[0]);

            uniformID = currentShader->uniformIDMap.find("Light.Ld");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &primaryLightLd[0]);

            uniformID = currentShader->uniformIDMap.find("Light.Ls");
            if(uniformID != mapEnd)
                glUniform3fv(uniformID->second, 1, &primaryLightLs[0]);


            /*** Render the object piece ***/
            glDrawElements(GL_TRIANGLES, totalElements, GL_UNSIGNED_INT, (void*)(first * sizeof(GLuint)));

        }

    }

}
コード例 #20
0
ファイル: pins.cpp プロジェクト: merckhung/opentoonz
void subCompute(TRasterFxPort &m_input, TTile &tile, double frame,
                const TRenderSettings &ri, TPointD p00, TPointD p01,
                TPointD p11, TPointD p10, int details, bool wireframe,
                TDimension m_offScreenSize, bool isCast) {
  TPixel32 bgColor;
  TRectD outBBox, inBBox;
  outBBox = inBBox = TRectD(tile.m_pos, TDimensionD(tile.getRaster()->getLx(),
                                                    tile.getRaster()->getLy()));
  m_input->getBBox(frame, inBBox, ri);
  if (inBBox == TConsts::infiniteRectD)  // e' uno zerario
    inBBox = outBBox;

  int inBBoxLx = (int)inBBox.getLx() / ri.m_shrinkX;
  int inBBoxLy = (int)inBBox.getLy() / ri.m_shrinkY;

  if (inBBox.isEmpty()) return;

  if (p00 == p01 && p00 == p10 && p00 == p11 &&
      !isCast)  // significa che non c'e' deformazione
  {
    m_input->compute(tile, frame, ri);
    return;
  }

  TRaster32P rasIn;
  TPointD rasInPos;

  if (!wireframe) {
    if (ri.m_bpp == 64 || ri.m_bpp == 48) {
      TRaster64P aux = TRaster64P(inBBoxLx, inBBoxLy);
      rasInPos = TPointD(inBBox.x0 / ri.m_shrinkX, inBBox.y0 / ri.m_shrinkY);
      TTile tmp(aux, rasInPos);
      m_input->compute(tmp, frame, ri);
      rasIn = TRaster32P(inBBoxLx, inBBoxLy);
      TRop::convert(rasIn, aux);
    } else {
      rasInPos = TPointD(inBBox.x0 / ri.m_shrinkX, inBBox.y0 / ri.m_shrinkY);
      TTile tmp(TRaster32P(inBBoxLx, inBBoxLy), rasInPos);
      m_input->allocateAndCompute(tmp, rasInPos, TDimension(inBBoxLx, inBBoxLy),
                                  TRaster32P(), frame, ri);
      rasIn = tmp.getRaster();
    }
  }

  unsigned int texWidth  = 2;
  unsigned int texHeight = 2;

  while (texWidth < (unsigned int)inBBoxLx) texWidth = texWidth << 1;

  while (texHeight < (unsigned int)inBBoxLy) texHeight = texHeight << 1;

  while (texWidth > 1024 || texHeight > 1024)  // avevo usato la costante
                                               // GL_MAX_TEXTURE_SIZE invece di
                                               // 1024, ma non funzionava!
  {
    inBBoxLx  = inBBoxLx >> 1;
    inBBoxLy  = inBBoxLy >> 1;
    texWidth  = texWidth >> 1;
    texHeight = texHeight >> 1;
  }

  if (rasIn->getLx() != inBBoxLx || rasIn->getLy() != inBBoxLy) {
    TRaster32P rasOut = TRaster32P(inBBoxLx, inBBoxLy);
    TRop::resample(rasOut, rasIn,
                   TScale((double)rasOut->getLx() / rasIn->getLx(),
                          (double)rasOut->getLy() / rasIn->getLy()));
    rasIn = rasOut;
  }

  int rasterWidth  = tile.getRaster()->getLx() + 2;
  int rasterHeight = tile.getRaster()->getLy() + 2;
  assert(rasterWidth > 0);
  assert(rasterHeight > 0);

  TRectD clippingRect =
      TRectD(tile.m_pos,
             TDimensionD(tile.getRaster()->getLx(), tile.getRaster()->getLy()));
#ifdef CREATE_GL_CONTEXT_ONE_TIME
  int ret = wglMakeCurrent(m_offScreenGL.m_offDC, m_offScreenGL.m_hglRC);
  assert(ret == TRUE);
#else
  TOfflineGL offScreenRendering(TDimension(rasterWidth, rasterHeight));
  //#ifdef _WIN32
  offScreenRendering.makeCurrent();
//#else
//#if defined(LINUX) || defined(MACOSX)
// offScreenRendering.m_offlineGL->makeCurrent();
//#endif
#endif

  checkErrorsByGL
      // disabilito quello che non mi serve per le texture
      glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
  glDisable(GL_DITHER);
  glDisable(GL_DEPTH_TEST);
  glCullFace(GL_FRONT);
  glDisable(GL_STENCIL_TEST);
  glDisable(GL_LOGIC_OP);

  // creo la texture in base all'immagine originale
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

  checkErrorsByGL
#ifndef CREATE_GL_CONTEXT_ONE_TIME
      TRaster32P rasaux;
  if (!wireframe) {
    TRaster32P texture(texWidth, texHeight);
    texture->clear();
    rasaux = texture;
    rasaux->lock();
    texture->copy(rasIn);

    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
    glTexImage2D(GL_TEXTURE_2D, 0, 4, texWidth, texHeight, 0, GL_RGBA,
                 GL_UNSIGNED_BYTE, texture->getRawData());
  }
#else

      unsigned int texWidth = 1024;
  unsigned int texHeight    = 1024;
  rasaux                    = rasIn;
  rasaux->lock();

  glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, rasIn->getLx(), rasIn->getLy(),
                  GL_RGBA, GL_UNSIGNED_BYTE, rasIn->getRawData());

#endif
  checkErrorsByGL

      glEnable(GL_TEXTURE_2D);

  // cfr. help: OpenGL/Programming tip/OpenGL Correctness Tips
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  glOrtho(-rasterWidth * 0.5, rasterWidth * 0.5, -rasterHeight * 0.5,
          rasterHeight * 0.5, -1, 1);
  glViewport(0, 0, rasterWidth, rasterHeight);

  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();

  glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
  glClear(GL_COLOR_BUFFER_BIT);

  // do OpenGL draw

  double lwTex = (double)(inBBoxLx - 1) / (double)(texWidth - 1);
  double lhTex = (double)(inBBoxLy - 1) / (double)(texHeight - 1);

  TPointD tex00 = TPointD(0.0, 0.0);
  TPointD tex10 = TPointD(lwTex, 0.0);
  TPointD tex11 = TPointD(lwTex, lhTex);
  TPointD tex01 = TPointD(0.0, lhTex);

  GLenum polygonStyle;
  if (wireframe) {
    polygonStyle = GL_LINE;
    glDisable(GL_TEXTURE_2D);
  } else
    polygonStyle = GL_FILL;
  checkErrorsByGL p00.x /= ri.m_shrinkX;
  p00.y /= ri.m_shrinkY;

  p10.x /= ri.m_shrinkX;
  p10.y /= ri.m_shrinkY;

  p11.x /= ri.m_shrinkX;
  p11.y /= ri.m_shrinkY;

  p01.x /= ri.m_shrinkX;
  p01.y /= ri.m_shrinkY;

  TPointD translate = TPointD(tile.m_pos.x + tile.getRaster()->getLx() * 0.5,
                              tile.m_pos.y + tile.getRaster()->getLy() * 0.5);
  glTranslated(-translate.x, -translate.y, 0.0);

  // disegno il poligono
  double dist_p00_p01                 = tdistance2(p00, p01);
  double dist_p10_p11                 = tdistance2(p10, p11);
  double dist_p01_p11                 = tdistance2(p01, p11);
  double dist_p00_p10                 = tdistance2(p00, p10);
  bool vertical                       = (dist_p00_p01 == dist_p10_p11);
  bool horizontal                     = (dist_p00_p10 == dist_p01_p11);
  if (vertical && horizontal) details = 1;
  glPolygonMode(GL_FRONT_AND_BACK, polygonStyle);
  subdivision(p00, p10, p11, p01, tex00, tex10, tex11, tex01, clippingRect,
              details);

  if (!wireframe) {
    // abilito l'antialiasing delle linee
    glEnable(GL_LINE_SMOOTH);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);

    // disegno il bordo del poligono
    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
    glBegin(GL_QUADS);
    glTexCoord2d(tex00.x, tex00.y);
    tglVertex(p00);
    glTexCoord2d(tex10.x, tex10.y);
    tglVertex(p10);
    glTexCoord2d(tex11.x, tex11.y);
    tglVertex(p11);
    glTexCoord2d(tex01.x, tex01.y);
    tglVertex(p01);
    glEnd();

    // disabilito l'antialiasing per le linee
    glDisable(GL_LINE_SMOOTH);
    glDisable(GL_BLEND);
    glDisableClientState(GL_VERTEX_ARRAY);
    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
    glDisable(GL_TEXTURE_2D);
  }

  // force to finish
  glFlush();

  // rimetto il disegno dei poligoni a GL_FILL
  glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

  // metto il frame buffer nel raster del tile
  glPixelStorei(GL_UNPACK_ROW_LENGTH, rasterWidth);
  glPixelStorei(GL_UNPACK_ALIGNMENT, 4);

  TRaster32P newRas(tile.getRaster()->getLx(), tile.getRaster()->getLy());
  newRas->lock();
  glReadPixels(1, 1, newRas->getLx(), newRas->getLy(), GL_RGBA,
               GL_UNSIGNED_BYTE, (void *)newRas->getRawData());
  newRas->unlock();
  checkErrorsByGL

      rasaux->unlock();

  tile.getRaster()->copy(newRas);
}
コード例 #21
0
ファイル: framebuffer.cpp プロジェクト: jhk2/glsandbox
bool Framebuffer::init(bool gen)
{
    //~ printf("init framebuffer with gen %u\n", gen); fflush(stdout);
    if (gen) {
        glGenFramebuffers(1, &id_);
    }

    if (params_.numMrts == 0) {
        printf("num mrts is zero, failed!\n"); fflush(stdout);
        return false;
    }
    if (params_.depth > GL_MAX_COLOR_ATTACHMENTS) { // same for mrt
        printf("num mrts is too many, failed\n"); fflush(stdout);
        return false;
    }

    bind();

    // NSIGHT doesn't support this, seems to work without it anyways (since we aren't using empty framebuffers)
    //glFramebufferParameteri(GL_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_WIDTH, params_.width);
    //glFramebufferParameteri(GL_FRAMEBUFFER, GL_FRAMEBUFFER_DEFAULT_HEIGHT, params_.height);

    if (params_.colorEnable) {
        if (gen) {
            color_ = new GLuint[params_.numMrts];
        }

        if (params_.type == GL_TEXTURE_2D) {
            //~ printf("making non-msaa 2d framebuffer\n"); fflush(stdout);
            if (gen) {
                glGenTextures(params_.numMrts, &color_[0]);
            }
            for (unsigned int i = 0; i < params_.numMrts; i++) {
                //printf("making non msaa color target for id %u\n", color_[i]); fflush(stdout);
                glBindTexture(GL_TEXTURE_2D, color_[i]);
                glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, params_.filter);
                glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, params_.filter);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
                glTexImage2D(GL_TEXTURE_2D, 0, params_.format, params_.width, params_.height, 0, GL_RGBA, GL_FLOAT, 0);
                glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, color_[i], 0);
            }
        } else if (params_.type == GL_TEXTURE_2D_MULTISAMPLE) {
            GLint maxSamples = 0;
            glGetIntegerv(GL_MAX_SAMPLES_EXT, &maxSamples);
            params_.numSamples = min(params_.numSamples, static_cast<GLuint>(maxSamples));
            if (gen) {
                glGenTextures(params_.numMrts, &color_[0]);
            }
            for (int i = 0; i < params_.numMrts; i++) {
                //~ printf("making msaa color target for id %u\n", color_[i]); fflush(stdout);
                glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, color_[i]);
                //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
                //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
                //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
                //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
                glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, params_.numSamples, params_.format , params_.width, params_.height, false);
                glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D_MULTISAMPLE, color_[i], 0);
            }
        } else if (params_.type == GL_TEXTURE_3D) {
            //~ printf("making non-msaa 3d framebuffer\n"); fflush(stdout);
            if (gen) {
                glGenTextures(params_.numMrts, &color_[0]);
            }
            for (int i = 0; i < params_.numMrts; i++) {
                glBindTexture(GL_TEXTURE_3D, color_[i]);
                glTexParameterf(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // must be linear or nearest
                glTexParameterf(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
                glTexImage3D(GL_TEXTURE_3D, 0, params_.format, params_.width, params_.height, params_.depth, 0, GL_RGBA, GL_FLOAT, 0);
                glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, color_[i], 0);
            }
            /* binding each layer to a color attachment (old way)
            for (int i = 0; i < params_.depth; i++) {
                glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + i, color_[0], 0, i);
            }
            */
        }
        GLenum *bufs = new GLenum[params_.numMrts];
        for (unsigned int i = 0; i < params_.numMrts; i++) {
            bufs[i] = GL_COLOR_ATTACHMENT0 + i;
        }
        glDrawBuffers(params_.numMrts, bufs);
        delete[] bufs;
        glBindTexture(params_.type, 0);
    }

    if(params_.depthEnable) {
        if (gen) {
            glGenTextures(1, &depth_);
        }
        if (params_.type == GL_TEXTURE_2D_MULTISAMPLE) {
            //~ printf("making msaa z target id for %u\n", depth_); fflush(stdout);
            glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, depth_);
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
            // this was throwing GL debug errors, so maybe take care of it in a sampler, or when we are doing shadow mapping?
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
            //~ glTexParameteri(GL_TEXTURE_2D_MULTISAMPLE, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
            glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, params_.numSamples, params_.depthFormat, params_.width, params_.height, false);
            glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, depth_, 0);
            glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);
        } else if (params_.type == GL_TEXTURE_3D) {
            glBindTexture(GL_TEXTURE_3D, depth_);
            glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
            glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
            glTexImage3D(GL_TEXTURE_3D, 0, params_.depthFormat, params_.width, params_.height, params_.depth, 0, GL_DEPTH_COMPONENT, GL_FLOAT, 0);
            glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, depth_, 0);
            glBindTexture(GL_TEXTURE_3D, 0);
        } else {
            //printf("making normal z target for id %u\n", depth_); fflush(stdout);
            glBindTexture(GL_TEXTURE_2D, depth_);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
            // glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_DEPTH_COMPONENT); // should be default
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
            // comparison functions for shadow mapping
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
            glTexImage2D(GL_TEXTURE_2D, 0, params_.depthFormat, params_.width, params_.height, 0, GL_DEPTH_COMPONENT, GL_FLOAT, 0);
            glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depth_, 0);
            glBindTexture(GL_TEXTURE_2D, 0);
        }
    }
    bool check = checkStatus(GL_FRAMEBUFFER);

    glBindFramebuffer(GL_FRAMEBUFFER, 0);

    return check;
}
コード例 #22
0
ファイル: pulsar.c プロジェクト: RazZziel/pongclock
/* Create a texture in OpenGL.  First an image is loaded 
   and stored in a raster buffer, then it's  */
static void Create_Texture(ModeInfo *mi, const char *filename)
{
  int height, width;
  GLubyte *image;
  int format;

  if ( !strncmp(filename, "BUILTIN", 7))
    image = Generate_Image(&width, &height, &format);
  else
    {
      XImage *ximage = xpm_file_to_ximage (MI_DISPLAY (mi), MI_VISUAL (mi),
                                           MI_COLORMAP (mi), filename);
      image  = (GLubyte *) ximage->data;
      width  = ximage->width;
      height = ximage->height;
      format = GL_RGBA;
    }

  /* GL_MODULATE or GL_DECAL depending on what you want */
  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  /* perhaps we can edge a bit more speed at the expense of quality */
  glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);

  if (do_texture_quality) {
	/* with texture_quality, the min and mag filters look *much* nice but are *much* slower */
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
  }
  else {
	/* default is to do it quick and dirty */
	/* if you have mipmaps turned on, but not texture quality, nothing will happen! */
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  }

  /* mipmaps make the image look much nicer */
  if (do_mipmap)
    {
      int status;
      clear_gl_error();
      status = gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height, format,
                                 GL_UNSIGNED_BYTE, image);
      if (status)
        {
          const char *s = (char *) gluErrorString (status);
          fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
                   progname, width, height,
                   (s ? s : "(unknown)"));
          exit (1);
        }
      check_gl_error("mipmapping");
    }
  else
    {
      clear_gl_error();
      glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0,
                   format, GL_UNSIGNED_BYTE, image);
      check_gl_error("texture");
    }
}
コード例 #23
0
ファイル: texturas.cpp プロジェクト: Onumis/Solar-System
int LoadBitmap(char *filename)
{
    FILE * file;
    char temp;
    long i;

    // own version of BITMAPINFOHEADER from windows.h for Linux compile
    struct {
      int biWidth;
      int biHeight;
      short int biPlanes;
      unsigned short int biBitCount;
      unsigned char *data;
    } infoheader;

    GLuint num_texture;

    if( (file = fopen(filename, "rb"))==NULL) return (-1); // Open the file for reading

    fseek(file, 18, SEEK_CUR);  /* start reading width & height */
    fread(&infoheader.biWidth, sizeof(int), 1, file);

    fread(&infoheader.biHeight, sizeof(int), 1, file);

    fread(&infoheader.biPlanes, sizeof(short int), 1, file);
    if (infoheader.biPlanes != 1) {
      printf("Planes from %s is not 1: %u\n", filename, infoheader.biPlanes);
      return 0;
    }

    // read the bpp
    fread(&infoheader.biBitCount, sizeof(unsigned short int), 1, file);
    if (infoheader.biBitCount != 24) {
      printf("Bpp from %s is not 24: %d\n", filename, infoheader.biBitCount);
      return 0;
    }

    fseek(file, 24, SEEK_CUR);

    // read the data
    if(infoheader.biWidth<0){
      infoheader.biWidth = -infoheader.biWidth;
    }
    if(infoheader.biHeight<0){
      infoheader.biHeight = -infoheader.biHeight;
    }
    infoheader.data = (unsigned char *) malloc(infoheader.biWidth * infoheader.biHeight * 3);
    if (infoheader.data == NULL) {
      printf("Error allocating memory for color-corrected image data\n");
      return 0;
    }

    if ((i = fread(infoheader.data, infoheader.biWidth * infoheader.biHeight * 3, 1, file)) != 1) {
      printf("Error reading image data from %s.\n", filename);
      return 0;
    }

    for (i=0; i<(infoheader.biWidth * infoheader.biHeight * 3); i+=3) { // reverse all of the colors. (bgr -> rgb)
      temp = infoheader.data[i];
      infoheader.data[i] = infoheader.data[i+2];
      infoheader.data[i+2] = temp;
    }


    fclose(file); // Closes the file stream

    glGenTextures(1, &num_texture);
    glBindTexture(GL_TEXTURE_2D, num_texture); // Bind the ID texture specified by the 2nd parameter

    // The next commands sets the texture parameters
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // If the u,v coordinates overflow the range 0,1 the image is repeated
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); // The magnification function ("linear" produces better results)
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); //The minifying function

    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

    // Finally we define the 2d texture
    glTexImage2D(GL_TEXTURE_2D, 0, 3, infoheader.biWidth, infoheader.biHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, infoheader.data);

    // And create 2d mipmaps for the minifying function
    gluBuild2DMipmaps(GL_TEXTURE_2D, 3, infoheader.biWidth, infoheader.biHeight, GL_RGB, GL_UNSIGNED_BYTE, infoheader.data);
    
    free(infoheader.data); // Free the memory we used to load the texture

    return (num_texture); // Returns the current texture OpenGL ID
}
コード例 #24
0
void myinit(void)
{
    // Load shaders and use the resulting shader program
    GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
    glUseProgram(program);

    // Generate vertex arrays for geometric shapes
    generateCube(program, &cubeData);
    generateSphere(program, &sphereData);
    generateCone(program, &coneData);
    generateCylinder(program, &cylData);
	generatePyramid(program, &pyramidData);

    uModelView  = glGetUniformLocation( program, "ModelView"  );
    uProjection = glGetUniformLocation( program, "Projection" );
    uView       = glGetUniformLocation( program, "View"       );

    glClearColor( .1, .1, .6, 1.0 ); // dark blue background

    uAmbient   = glGetUniformLocation( program, "AmbientProduct"  );
    uDiffuse   = glGetUniformLocation( program, "DiffuseProduct"  );
    uSpecular  = glGetUniformLocation( program, "SpecularProduct" );
    uLightPos  = glGetUniformLocation( program, "LightPosition"   );
    uShininess = glGetUniformLocation( program, "Shininess"       );
    uTex       = glGetUniformLocation( program, "Tex"             );
    uEnableTex = glGetUniformLocation( program, "EnableTex"       );

    glUniform4f(uAmbient,    0.2f,  0.2f,  0.2f, 1.0f);
    glUniform4f(uDiffuse,    0.6f,  0.6f,  0.6f, 1.0f);
    glUniform4f(uSpecular,   0.2f,  0.2f,  0.2f, 1.0f);
    glUniform4f(uLightPos,  15.0f, 15.0f, 30.0f, 0.0f);
    glUniform1f(uShininess, 100.0f);

    glEnable(GL_DEPTH_TEST);

    TgaImage coolImage;
    if (!coolImage.loadTGA("dirt.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }
    
    TgaImage earthImage;
    if (!earthImage.loadTGA("earth.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }

	 TgaImage roofImage;
    if (!roofImage.loadTGA("roof.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }

	TgaImage treeImage;
    if (!treeImage.loadTGA("tree.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }

	TgaImage skyImage;
    if (!skyImage.loadTGA("sky.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }

	TgaImage stoneImage;
    if (!stoneImage.loadTGA("stone.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }

	TgaImage leafImage;
    if (!leafImage.loadTGA("leaf.tga"))
    {
        printf("Error loading image file\n");
        exit(1);
    }
    
    glGenTextures( 1, &texture_cube );	
    glBindTexture( GL_TEXTURE_2D, texture_cube );
    
    glTexImage2D(GL_TEXTURE_2D, 0, 4, coolImage.width, coolImage.height, 0,
                 (coolImage.byteCount == 3) ? GL_BGR : GL_BGRA,
                 GL_UNSIGNED_BYTE, coolImage.data );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	
    
    
    glGenTextures( 1, &texture_earth );
    glBindTexture( GL_TEXTURE_2D, texture_earth );
    
    glTexImage2D(GL_TEXTURE_2D, 0, 4, earthImage.width, earthImage.height, 0,
                 (earthImage.byteCount == 3) ? GL_BGR : GL_BGRA,
                 GL_UNSIGNED_BYTE, earthImage.data );
    
	//roof
	 glGenTextures( 1, &texture_roof );
    glBindTexture( GL_TEXTURE_2D, texture_roof );

    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	 glTexImage2D(GL_TEXTURE_2D, 0, 4, roofImage.width, roofImage.height, 0,
            (roofImage.byteCount == 3) ? GL_BGR : GL_BGRA,
             GL_UNSIGNED_BYTE, roofImage.data );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

		 glGenTextures( 1, &texture_trees );
    glBindTexture( GL_TEXTURE_2D, texture_trees );

    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	 glTexImage2D(GL_TEXTURE_2D, 0, 4, treeImage.width, treeImage.height, 0,
            (treeImage.byteCount == 3) ? GL_BGR : GL_BGRA,
             GL_UNSIGNED_BYTE, treeImage.data );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	glGenTextures( 1, &texture_leaf );
    glBindTexture( GL_TEXTURE_2D, texture_leaf );

    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	 glTexImage2D(GL_TEXTURE_2D, 0, 4, leafImage.width, leafImage.height, 0,
            (leafImage.byteCount == 3) ? GL_BGR : GL_BGRA,
             GL_UNSIGNED_BYTE, leafImage.data );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

		glGenTextures( 1, &texture_stone );
    glBindTexture( GL_TEXTURE_2D, texture_stone );

    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

	 glTexImage2D(GL_TEXTURE_2D, 0, 4, stoneImage.width, stoneImage.height, 0,
            (stoneImage.byteCount == 3) ? GL_BGR : GL_BGRA,
             GL_UNSIGNED_BYTE, stoneImage.data );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
    glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );

    
    // Set texture sampler variable to texture unit 0
    // (set in glActiveTexture(GL_TEXTURE0))
    
    glUniform1i( uTex, 0);
    
    Arcball = new BallData;
    Ball_Init(Arcball);
    Ball_Place(Arcball,qOne,0.75);
}
コード例 #25
0
    bool TextureManager::TImpl::ItlLoadTextureFromFile(GLuint &rnTextureID, std::string sFilename, bool bAlreadyGammaCorrected)
    {
        Logger::debug() << "Try to load texture from \"" << sFilename << "\"" << Logger::endl;

        ILuint nIlTextureId;                            // index für DevIL Textur

        ilGenImages(1,&nIlTextureId);                   // generieren von IL ID für Texturen
        ilBindImage(nIlTextureId);                      // bestimmten Texturindex als aktell setzen

        if (!ilLoadImage (sFilename.data()))		// laden der Textur
        {
                ILenum Error;
                Error = ilGetError();
                ilDeleteImages(1,&nIlTextureId);		// bei Fehlschlag wieder Index freigeben

                Logger::error() << "Could not find texture file " << sFilename << ", loading failed. DevIL error-code: " << Error << Logger::endl;

                return false;
        }
        else
        {
                long int iHeight, iWidth, iFormat;
                unsigned char *szData=0;

                iWidth=ilGetInteger(IL_IMAGE_WIDTH);		    // Breite des Bildes holen
                iHeight=ilGetInteger(IL_IMAGE_HEIGHT);	    // Höhe des Bildes holen
                //bpp=ilGetInteger(IL_IMAGE_BYTES_PER_PIXEL); // Farbtiefe des Bildes
                iFormat=ilGetInteger(IL_IMAGE_FORMAT);	    // Format des Bildes z.B. RGB RGBA BGR BGRA usw.
                szData=ilGetData();			    // Zeiger auf Bilddaten holen

                glGetError();				    // clear error state
                glGenTextures(1,&rnTextureID);		    // ask for opengl texture-id (returns first free id)
                glBindTexture(GL_TEXTURE_2D, rnTextureID);

                if (bAlreadyGammaCorrected)
                        glTexImage2D(GL_TEXTURE_2D, 0, GL_SRGB8_ALPHA8, iWidth, iHeight, 0, iFormat, GL_UNSIGNED_BYTE, szData);
                else
                        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, iWidth, iHeight, 0, iFormat, GL_UNSIGNED_BYTE, szData);


                //activate mipmapping
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
                //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

                float fMaximumAnisotropy=0.0;
                //get maximum ansitropic filtering value
                glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &fMaximumAnisotropy);

                //activate 4x ansitropic filtering if possible
                if (fMaximumAnisotropy >= 1.0)
                {
                    if (fMaximumAnisotropy > 4.0)
                        fMaximumAnisotropy = 4.0f;
                        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, fMaximumAnisotropy);
                        Logger::debug() << fMaximumAnisotropy << " ansitropic filtering activated" << Logger::endl;
                }
                else
                    Logger::error() << "Ansitropic filtering not available by graphic hardware" << Logger::endl;

                glGenerateMipmap(GL_TEXTURE_2D);  //Generate mipmaps now!!!

                GLenum eError = glGetError();
                if (eError != GL_NO_ERROR)
                    Logger::error() << "glGetError: " << GLUtils::TranslateGLerror(eError) << Logger::endl;

                return true;
        }
    }
コード例 #26
0
ファイル: stairs.c プロジェクト: Zygo/xscreensaver
static void
pinit(ModeInfo *mi)
{
  /* int status; */
	glClearDepth(1.0);
	glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
	glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
	glLightfv(GL_LIGHT0, GL_POSITION, position0);
	glLightfv(GL_LIGHT1, GL_AMBIENT, ambient);
	glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse);
	glLightfv(GL_LIGHT1, GL_POSITION, position1);
	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
	glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
	glEnable(GL_LIGHTING);
	glEnable(GL_LIGHT0);
	glEnable(GL_LIGHT1);
	glEnable(GL_NORMALIZE);
	glCullFace(GL_BACK);

	glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, MaterialWhite);
	glShadeModel(GL_FLAT);
	glEnable(GL_DEPTH_TEST);
	glEnable(GL_TEXTURE_2D);
	glEnable(GL_CULL_FACE);

	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

#if 0
    clear_gl_error();
    status = gluBuild2DMipmaps(GL_TEXTURE_2D, 3,
                               WoodTextureWidth, WoodTextureHeight,
                               GL_RGB, GL_UNSIGNED_BYTE, WoodTextureData);
    if (status)
      {
        const char *s = (char *) gluErrorString (status);
        fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
                 progname, WoodTextureWidth, WoodTextureHeight,
                 (s ? s : "(unknown)"));
        exit (1);
      }
    check_gl_error("mipmapping");
#else
    {
      XImage *img = image_data_to_ximage (mi->dpy, mi->xgwa.visual,
                                          wood_png, sizeof(wood_png));
	  glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
                    img->width, img->height, 0,
                    GL_RGBA, GL_UNSIGNED_BYTE, img->data);
      check_gl_error("texture");
      XDestroyImage (img);
    }
#endif

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

	glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, front_shininess);
	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular);
}
コード例 #27
0
ファイル: MeshUtil.cpp プロジェクト: mimoccc/ARloader
/** loadTexture
 *   loads a png file into an opengl texture object, using cstdio , libpng, and opengl.
 *
 *   \param filename : the png file to be loaded
 *
 */
GLuint MeshUtil::loadTexture(zip* apk,const char* filename)
{


  file = zip_fopen(apk, filename, 0);

  if (!file) {
    LOGI("Error opening %s from APK", filename);
    return TEXTURE_LOAD_ERROR;
  }

  //header for testing if it is a png
  png_byte header[8];

  //read the header
  zip_fread(file, header, 8);

  //test if png
  int is_png = !png_sig_cmp(header, 0, 8);
  if (!is_png) {
    zip_fclose(file);
    LOGI("Not a png file : %s", filename);
    return TEXTURE_LOAD_ERROR;
  }

  //create png struct
  png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL,
      NULL, NULL);
  if (!png_ptr) {
    zip_fclose(file);
    LOGI("Unable to create png struct : %s", filename);
    return (TEXTURE_LOAD_ERROR);
  }

  //create png info struct
  png_infop info_ptr = png_create_info_struct(png_ptr);
  if (!info_ptr) {
    png_destroy_read_struct(&png_ptr, (png_infopp) NULL, (png_infopp) NULL);
    LOGI("Unable to create png info : %s", filename);
    zip_fclose(file);
    return (TEXTURE_LOAD_ERROR);
  }

  //create png info struct
  png_infop end_info = png_create_info_struct(png_ptr);
  if (!end_info) {
    png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp) NULL);
    LOGI("Unable to create png end info : %s", filename);
    zip_fclose(file);
    return (TEXTURE_LOAD_ERROR);
  }

  //png error stuff, not sure libpng man suggests this.
  if (setjmp(png_jmpbuf(png_ptr))) {
    zip_fclose(file);
    LOGI("Error during setjmp : %s", filename);
    png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
    return (TEXTURE_LOAD_ERROR);
  }

  //init png reading
  //png_init_io(png_ptr, fp);
  png_set_read_fn(png_ptr, NULL, png_zip_read);

  //let libpng know you already read the first 8 bytes
  png_set_sig_bytes(png_ptr, 8);

  // read all the info up to the image data
  png_read_info(png_ptr, info_ptr);

  //variables to pass to get info
  int bit_depth, color_type;
  png_uint_32 twidth, theight;

  // get info about png
  png_get_IHDR(png_ptr, info_ptr, &twidth, &theight, &bit_depth, &color_type,
      NULL, NULL, NULL);

  GLint texFormat = 0;

  //set the right texture format
  if(color_type == PNG_COLOR_TYPE_RGBA){
      texFormat = GL_RGBA;
  }else if(color_type == PNG_COLOR_TYPE_RGB){
      texFormat = GL_RGB;
  }else{
      zip_fclose(file);
      LOGI("Texture color format is not supported");
      png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
      return TEXTURE_LOAD_ERROR;
  }

  // Update the png info struct.
  png_read_update_info(png_ptr, info_ptr);

  // Row size in bytes.
  int rowbytes = png_get_rowbytes(png_ptr, info_ptr);

  // Allocate the image_data as a big block, to be given to opengl
  png_byte *image_data = new png_byte[rowbytes * theight];
  if (!image_data) {
    //clean up memory and close stuff
    png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
    LOGI("Unable to allocate image_data while loading %s ", filename);
    zip_fclose(file);
    return TEXTURE_LOAD_ERROR;
  }

  //row_pointers is for pointing to image_data for reading the png with libpng
  png_bytep *row_pointers = new png_bytep[theight];
  if (!row_pointers) {
    //clean up memory and close stuff
    png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
    delete[] image_data;
    LOGI("Unable to allocate row_pointer while loading %s ", filename);
    zip_fclose(file);
    return TEXTURE_LOAD_ERROR;
  }
  // set the individual row_pointers to point at the correct offsets of image_data
  for (unsigned int i = 0; i < theight; ++i)
    row_pointers[theight - 1 - i] = image_data + i * rowbytes;

  //read the png into image_data through row_pointers
  png_read_image(png_ptr, row_pointers);


  //Now generate the OpenGL texture object
   GLuint texture;
   glGenTextures(1, &texture);
   glBindTexture(GL_TEXTURE_2D, texture);

   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

   /*glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
   glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
   glTexParameterf(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);*/
   glTexImage2D(GL_TEXTURE_2D, 0, texFormat, twidth, theight, 0, texFormat, GL_UNSIGNED_BYTE, image_data);

   //glMatrixMode(GL_TEXTURE );

#ifdef USE_OPENGL_ES_1_1
   glLoadIdentity();
#else
#endif

  //clean up memory and close stuff
  png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
  delete[] image_data;
  delete[] row_pointers;
  zip_fclose(file);

  return texture;
}
コード例 #28
0
void init(int buffer_width, int buffer_height)
{
	frame_buffer_texture_width = buffer_width;
	frame_buffer_texture_height = buffer_height;

#if defined(TARGET_OS_HARMATTAN) || defined(TARGET_PANDORA) || defined(TARGET_TEGRA) || defined(TARGET_BLACKBERRY)
	if (glGenFramebuffersOES        != NULL &&
		glBindFramebufferOES        != NULL &&
		glFramebufferTexture2DOES   != NULL &&
		glCheckFramebufferStatusOES != NULL)
	{
		supported = true;
	}
	else
	{
		fprintf(stderr, "FRAME BUFFER OBJECT NOT SUPPORTED\n");
		supported = false;
		return;
	}
#elif !TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
	if(!GLEW_EXT_framebuffer_object)
    {
		fprintf(stderr, "FRAME BUFFER OBJECT NOT SUPPORTED\n");
		supported = false;
		return;
	}
#endif
	fprintf(stderr, "FRAME BUFFER OBJECT IS SUPPORTED\n");

#ifndef TARGET_TEGRA
	glGetIntegerv(EXT_MACRO(GL_FRAMEBUFFER_BINDING), &video_framebuffer_id);
#endif
	ASSERT_EQ(glGetError(), GL_NO_ERROR);
	glGenTextures(1, &texture_id);
	glBindTexture(GL_TEXTURE_2D, texture_id);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width(), height(), 0,
             GL_RGBA, GL_UNSIGNED_BYTE, 0);
	glBindTexture(GL_TEXTURE_2D, 0);


	// create a framebuffer object
	EXT_CALL(glGenFramebuffers)(1, &framebuffer_id);
	EXT_CALL(glBindFramebuffer)(EXT_MACRO(GL_FRAMEBUFFER), framebuffer_id);

	// attach the texture to FBO color attachment point
	EXT_CALL(glFramebufferTexture2D)(EXT_MACRO(GL_FRAMEBUFFER), EXT_MACRO(GL_COLOR_ATTACHMENT0),
                          GL_TEXTURE_2D, texture_id, 0);

	// check FBO status
	GLenum status = EXT_CALL(glCheckFramebufferStatus)(EXT_MACRO(GL_FRAMEBUFFER));
	ASSERT_EQ(status, EXT_MACRO(GL_FRAMEBUFFER_COMPLETE));

	// switch back to window-system-provided framebuffer
	EXT_CALL(glBindFramebuffer)(EXT_MACRO(GL_FRAMEBUFFER), video_framebuffer_id);

	ASSERT_EQ(glGetError(), GL_NO_ERROR);
}
コード例 #29
0
ファイル: main_window.cpp プロジェクト: lisyarus/kubach
void main_window::initializeGL ( )
{
    glDepthFunc(GL_LEQUAL);

    glGenTextures(1, &texture_id);

    glActiveTexture(GL_TEXTURE0);

    glBindTexture(GL_TEXTURE_2D, texture_id);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    auto random = std::bind(std::uniform_int_distribution<unsigned char>(192, 255), std::default_random_engine());
    for (int x = 0; x < texture_size; ++x)
    {
        for (int y = 0; y < texture_size; ++y)
        {
            unsigned char value = random();
            bool border = false; //x == 0 || x == texture_size - 1 || y == 0 || y == texture_size - 1;
            int border_value = 127;

            texture[x * texture_size * 3 + y * 3 + 0] = border ? border_value : value;
            texture[x * texture_size * 3 + y * 3 + 1] = border ? border_value : value;
            texture[x * texture_size * 3 + y * 3 + 2] = border ? border_value : value;
        }
    }

    glBindTexture(GL_TEXTURE_2D, texture_id);
    glTexImage2D(GL_TEXTURE_2D, 0, 3, texture_size, texture_size, 0, GL_RGB, GL_UNSIGNED_BYTE, texture);

    const char * vertex_shader_code = "\
    uniform vec4 relocate; \
    varying vec2 texCoord; \
    varying vec4 position; \
    varying vec4 normal; \
    uniform vec4 playerPos; \
    void main() { \
        if (dot(gl_Vertex - playerPos, gl_Vertex - playerPos) < 0.0) { } \
        gl_Position = gl_ModelViewProjectionMatrix * (gl_Vertex + relocate); \
        position = gl_Vertex; \
        normal = vec4(gl_Normal, 0.0); \
        gl_FrontColor = gl_Color; \
        gl_BackColor = gl_Color; \
        texCoord = gl_MultiTexCoord0.xy; \
    }";
    const char * fragment_shader_code = "\
    uniform float health; \
    uniform sampler2D texture; \
    varying vec2 texCoord; \
    vec4 texColor; \
    varying vec4 position; \
    varying vec4 normal; \
    uniform vec4 playerPos; \
    vec4 delta; \
    float light; \
    void main() { \
        delta = playerPos - position; \
        delta[3] = 0.0; \
        light = dot(normalize(delta), normal); \
        texColor = texture2D(texture, texCoord); \
        gl_FragColor[0] = texColor[0] * gl_Color[0]; \
        gl_FragColor[1] = texColor[1] * gl_Color[1]; \
        gl_FragColor[2] = texColor[2] * gl_Color[2]; \
        gl_FragColor[3] = texColor[3] * gl_Color[3]; \
        if (texCoord[0] < 1.0 / 32.0 || texCoord[0] > 31.0 / 32.0 || texCoord[1] < 1.0 / 32.0 || texCoord[1] > 31.0 / 32.0) \
        { \
            gl_FragColor = mix(gl_FragColor, vec4(0.0, 0.0, 0.0, 1.0), 0.5); \
        } \
        gl_FragColor = mix(vec4(0.75, 0.75, 0.75, 1.0), gl_FragColor, min(10.0 / dot(delta, delta), 1.0)); \
        gl_FragColor[0] = gl_FragColor[0] + health * (1.0 - gl_FragColor[0]); \
        gl_FragColor[1] = gl_FragColor[1] + health * (0.0 - gl_FragColor[1]); \
        gl_FragColor[2] = gl_FragColor[2] + health * (0.0 - gl_FragColor[2]); \
    }";
コード例 #30
0
ファイル: LoadTextureAMT.cpp プロジェクト: creepydragon/r2
void LoadTextureAMT::processGPU_Texture2D()
{
    ImageReader* reader = m_imageReaders[0];
    if(!reader)
    {
        return;
    }

    glActiveTexture(GL_TEXTURE0);
    glGenTextures(1, &m_textureId);
    glBindTexture(m_target, m_textureId);

    int levels;
    if(m_loadMipmaps)
    {
        levels = reader->getLevelAmount();

        if(levels == 1)
        {
            // If need mipmaps and image has only base level, set number of mipmap levels to generate
            levels = gmath::imageLevelCount(reader->getWidth(0), reader->getHeight(0), 1);
        }
    }
    else
    {
        levels = 1;
    }

    glTexStorage2D(m_target, levels, m_imageGLFormat, reader->getWidth(0), reader->getHeight(0));

    for(int i = 0; i < reader->getLevelAmount(); i++)
    {
        if(reader->isCompressedFormat())
        {
            glCompressedTexSubImage2D(m_target, i, 0, 0, reader->getWidth(i), reader->getHeight(i), reader->getFormat(), reader->getLevelSize(i), reader->getData(i));
        }
        else
        {
            glTexSubImage2D(m_target, i, 0, 0, reader->getWidth(i), reader->getHeight(i), reader->getFormat(), GL_UNSIGNED_BYTE, reader->getData(i));
        }
    }

    glTexParameteri(m_target, GL_TEXTURE_BASE_LEVEL, 0);

    if((reader->getLevelAmount() == 1) && m_loadMipmaps)
    {
        glGenerateMipmap(m_target);
    }

    if(m_loadMipmaps)
    {
        glTexParameteri(m_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
        glTexParameteri(m_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    }
    else
    {
        glTexParameteri(m_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(m_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameteri(m_target, GL_TEXTURE_MAX_LEVEL, 0);
    }

    // Anisotropy filtering
    float maximumAnistropy;
    glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maximumAnistropy);
    glTexParameterf(m_target, GL_TEXTURE_MAX_ANISOTROPY_EXT, maximumAnistropy);
    glBindTexture(m_target, 0);

    utils::deleteAndNull(reader);
    m_imageReaders[0] = nullptr;

    m_context->m_target = m_target;
    m_context->m_textureId = m_textureId;
}