Example #1
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
    qglClearDepth( 1.0f );

    qglCullFace(GL_FRONT);

    qglColor4f (1,1,1,1);

    // initialize downstream texture unit if we're running
    // in a multitexture environment
    if ( qglActiveTextureARB ) {
        GL_SelectTexture( 1 );
        GL_TextureMode( r_textureMode->string );
        GL_TexEnv( GL_MODULATE );
        qglDisable( GL_TEXTURE_2D );
        GL_SelectTexture( 0 );
    }

    qglEnable(GL_TEXTURE_2D);
    GL_TextureMode( r_textureMode->string );
    GL_TexEnv( GL_MODULATE );

    //qglShadeModel( GL_SMOOTH );
    qglDepthFunc( GL_LEQUAL );

    //
    // make sure our GL state vector is set correctly
    //
    glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;
    glState.storedGlState = 0;
    glState.faceCulling = CT_TWO_SIDED;
    glState.faceCullFront = qtrue;

    glState.currentProgram = 0;
    qglUseProgramObjectARB(0);

    if (glRefConfig.vertexArrayObject)
        qglBindVertexArrayARB(0);

    qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
    qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
    glState.currentVao = NULL;
    glState.vertexAttribsEnabled = 0;

    qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
    qglDepthMask( GL_TRUE );
    qglDisable( GL_DEPTH_TEST );
    qglEnable( GL_SCISSOR_TEST );
    qglDisable( GL_CULL_FACE );
    qglDisable( GL_BLEND );

    if (glRefConfig.seamlessCubeMap)
        qglEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);

    // GL_POLYGON_OFFSET_FILL will be glEnable()d when this is used
    qglPolygonOffset( r_offsetFactor->value, r_offsetUnits->value );

    qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );	// FIXME: get color of sky
}
Example #2
0
/*
======================
RB_SetDefaultGLState

This should initialize all GL state that any part of the entire program
may touch, including the editor.
======================
*/
void RB_SetDefaultGLState( void ) {
	int		i;

	RB_LogComment( "--- R_SetDefaultGLState ---\n" );

	qglClearDepth( 1.0f );
	qglColor4f (1,1,1,1);

	// the vertex array is always enabled
	qglEnableClientState( GL_VERTEX_ARRAY );
	qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
	qglDisableClientState( GL_COLOR_ARRAY );

	//
	// make sure our GL state vector is set correctly
	//
	memset( &backEnd.glState, 0, sizeof( backEnd.glState ) );
	backEnd.glState.forceGlState = true;

	qglColorMask( 1, 1, 1, 1 );

	qglEnable( GL_DEPTH_TEST );
	qglEnable( GL_BLEND );
	qglEnable( GL_SCISSOR_TEST );
	qglEnable( GL_CULL_FACE );
	qglDisable( GL_LIGHTING );
	qglDisable( GL_LINE_STIPPLE );
	qglDisable( GL_STENCIL_TEST );

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask( GL_TRUE );
	qglDepthFunc( GL_ALWAYS );
 
	qglCullFace( GL_FRONT_AND_BACK );
	qglShadeModel( GL_SMOOTH );

	if ( r_useScissor.GetBool() ) {
		qglScissor( 0, 0, glConfig.vidWidth, glConfig.vidHeight );
	}

	for ( i = glConfig.maxTextureUnits - 1 ; i >= 0 ; i-- ) {
		GL_SelectTexture( i );

		// object linear texgen is our default
		qglTexGenf( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
		qglTexGenf( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
		qglTexGenf( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
		qglTexGenf( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );

		GL_TexEnv( GL_MODULATE );
		qglDisable( GL_TEXTURE_2D );
		if ( glConfig.texture3DAvailable ) {
			qglDisable( GL_TEXTURE_3D );
		}
		if ( glConfig.cubeMapAvailable ) {
			qglDisable( GL_TEXTURE_CUBE_MAP_EXT );
		}
	}
}
Example #3
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
	qglClearDepth( 1.0f );

	qglCullFace(GL_FRONT);

	qglColor4f (1,1,1,1);

	// initialize downstream texture unit if we're running
	// in a multitexture environment
	if ( qglActiveTextureARB ) {
		GL_SelectTexture( 1 );
		GL_TextureMode( r_textureMode->string );
		GL_TexEnv( GL_MODULATE );
		qglDisable( GL_TEXTURE_2D );
		GL_SelectTexture( 0 );
	}

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode( r_textureMode->string );
	GL_TexEnv( GL_MODULATE );

	qglShadeModel( GL_SMOOTH );
	qglDepthFunc( GL_LEQUAL );

	// the vertex array is always enabled, but the color and texture
	// arrays are enabled and disabled around the compiled vertex array call
	qglEnableClientState (GL_VERTEX_ARRAY);

	//
	// make sure our GL state vector is set correctly
	//
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask( GL_TRUE );
	qglDisable( GL_DEPTH_TEST );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_CULL_FACE );
	qglDisable( GL_BLEND );

	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
	qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
	qglClearDepth( 1.0 );

	qglDrawBuffer( GL_FRONT );
#ifdef IOS
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );
#else
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );
#endif
	qglDrawBuffer( GL_BACK );
#ifdef IOS
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );
#else
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );
#endif
}
Example #4
0
/*
 ==================
 GL_DepthFunc
 ==================
*/
void GL_DepthFunc (uint func){

	if (glState.depthFunc == func)
		return;

	glState.depthFunc = func;

	qglDepthFunc(func);
}
Example #5
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
	qglClearDepth( 1.0f );

	qglCullFace(GL_FRONT);

	qglColor4f (1,1,1,1);

	// initialize downstream texture unit if we're running
	// in a multitexture environment
	if ( qglActiveTextureARB ) {
		GL_SelectTexture( 1 );
		GL_TextureMode( r_textureMode->string );
		GL_TexEnv( GL_MODULATE );
		qglDisable( GL_TEXTURE_2D );
		GL_SelectTexture( 0 );
	}

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode( r_textureMode->string );
	GL_TexEnv( GL_MODULATE );

	//qglShadeModel( GL_SMOOTH );
	qglDepthFunc( GL_LEQUAL );

	//
	// make sure our GL state vector is set correctly
	//
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

	glState.vertexAttribsState = 0;
	glState.vertexAttribPointersSet = 0;
	glState.currentProgram = 0;
	qglUseProgramObjectARB(0);

	qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
	qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
	glState.currentVBO = NULL;
	glState.currentIBO = NULL;

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask( GL_TRUE );
	qglDisable( GL_DEPTH_TEST );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_CULL_FACE );
	qglDisable( GL_BLEND );

	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
	qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
	qglClearDepth( 1.0 );

	qglDrawBuffer( GL_FRONT );
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );

	qglDrawBuffer( GL_BACK );
	qglClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT );
}
Example #6
0
void Sky_DepthClipEnd (void)
{
    qglColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
    qglColor4f (1, 1, 1, 1);
    GL_TexEnv (GL_TEXTURE0_ARB, GL_TEXTURE_2D, GL_REPLACE);

    // invert the depth function so that the sky will actually draw
    qglDepthFunc (GL_GEQUAL);
    qglDepthMask (0);
}
Example #7
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
	qglClearDepth( 1.0f );

	qglCullFace(GL_FRONT);

	qglColor4f (1,1,1,1);

	// initialize downstream texture unit if we're running
	// in a multitexture environment
	if ( qglActiveTextureARB ) {
		GL_SelectTexture( 1 );
		GL_TextureMode( r_textureMode->string );
		GL_TexEnv( GL_MODULATE );
		qglDisable( GL_TEXTURE_2D );
		GL_SelectTexture( 0 );
	}

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode( r_textureMode->string );
	GL_TexEnv( GL_MODULATE );

	qglShadeModel( GL_SMOOTH );
	qglDepthFunc( GL_LEQUAL );

	// the vertex array is always enabled, but the color and texture
	// arrays are enabled and disabled around the compiled vertex array call
	qglEnableClientState (GL_VERTEX_ARRAY);

	//
	// make sure our GL state vector is set correctly
	//
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask( GL_TRUE );
	qglDisable( GL_DEPTH_TEST );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_CULL_FACE );
	qglDisable( GL_BLEND );

#ifdef _NPATCH
	// If n-patches are supported, make sure they are disabled for now
	// Set the initial tesselation level and the interpolation modes
	if ( qglPNTrianglesiATI )
	{
		qglDisable( GL_PN_TRIANGLES_ATI );
		qglPNTrianglesiATI( GL_PN_TRIANGLES_POINT_MODE_ATI, GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI );
		qglPNTrianglesiATI( GL_PN_TRIANGLES_NORMAL_MODE_ATI, GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI );
		qglPNTrianglesiATI( GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI, 3 );
	}
#endif // _NPATCH
}
Example #8
0
/*
** GL_SetDefaultState
*/
void
GL_SetDefaultState(void)
{
	qglClearDepth(1.0f);

	qglCullFace(GL_FRONT);

	qglColor4f (1,1,1,1);

	/* initialize downstream texture unit if we're running
	 * in a multitexture environment */
	if(qglActiveTextureARB){
		GL_SelectTexture(1);
		GL_TextureMode(r_textureMode->string);
		GL_TexEnv(GL_MODULATE);
		qglDisable(GL_TEXTURE_2D);
		GL_SelectTexture(0);
	}

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode(r_textureMode->string);
	GL_TexEnv(GL_MODULATE);

	qglShadeModel(GL_SMOOTH);
	qglDepthFunc(GL_LEQUAL);

	/* the vertex array is always enabled, but the color and texture
	 * arrays are enabled and disabled around the compiled vertex array call */
	qglEnableClientState (GL_VERTEX_ARRAY);

	/*
	 * make sure our GL state vector is set correctly
	 *  */
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

	glState.vertexAttribsState = 0;
	glState.vertexAttribPointersSet = 0;
	glState.currentProgram = 0;
	qglUseProgramObjectARB(0);

	qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
	qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
	glState.currentVBO	= NULL;
	glState.currentIBO	= NULL;

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask(GL_TRUE);
	qglDisable(GL_DEPTH_TEST);
	qglEnable(GL_SCISSOR_TEST);
	qglDisable(GL_CULL_FACE);
	qglDisable(GL_BLEND);
}
Example #9
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
	qglClearDepth( 1.0f );

	qglCullFace(GL_FRONT);

	qglColor4f (1,1,1,1);

	GL_BindNullTextures();

	if (glRefConfig.framebufferObject)
		GL_BindNullFramebuffers();

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode( r_textureMode->string );

	//qglShadeModel( GL_SMOOTH );
	qglDepthFunc( GL_LEQUAL );

	//
	// make sure our GL state vector is set correctly
	//
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;
	glState.storedGlState = 0;
	glState.faceCulling = CT_TWO_SIDED;
	glState.faceCullFront = qtrue;

	GL_BindNullProgram();

	if (glRefConfig.vertexArrayObject)
		qglBindVertexArray(0);

	qglBindBuffer(GL_ARRAY_BUFFER, 0);
	qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
	glState.currentVao = NULL;
	glState.vertexAttribsEnabled = 0;

	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglDepthMask( GL_TRUE );
	qglDisable( GL_DEPTH_TEST );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_CULL_FACE );
	qglDisable( GL_BLEND );

	if (glRefConfig.seamlessCubeMap)
		qglEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);

	// GL_POLYGON_OFFSET_FILL will be glEnable()d when this is used
	qglPolygonOffset( r_offsetFactor->value, r_offsetUnits->value );

	qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );	// FIXME: get color of sky
}
Example #10
0
/*
==================
GL_SetDefaultState
==================
*/
void GL_SetDefaultState(void)
{
	qglClearDepth(1.0f);

	qglCullFace(GL_FRONT);

	qglColor4f(1, 1, 1, 1);

	// initialize downstream texture unit if we're running
	// in a multitexture environment
	if (qglActiveTextureARB)
	{
		GL_SelectTexture(1);
		GL_TextureMode(r_textureMode->string);
		GL_TexEnv(GL_MODULATE);
		qglDisable(GL_TEXTURE_2D);
		GL_SelectTexture(0);
	}

	qglEnable(GL_TEXTURE_2D);
	GL_TextureMode(r_textureMode->string);
	GL_TexEnv(GL_MODULATE);

	qglShadeModel(GL_SMOOTH);
	qglDepthFunc(GL_LEQUAL);

	// the vertex array is always enabled, but the color and texture
	// arrays are enabled and disabled around the compiled vertex array call
	qglEnableClientState(GL_VERTEX_ARRAY);

	// make sure our GL state vector is set correctly
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

	glPixelStorei(GL_PACK_ALIGNMENT, 1);
	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
	//*SEB* ? not the best place !
	glLockArraysEXT   = NULL;
	glUnlockArraysEXT = NULL;

	qglDepthMask(GL_TRUE);
	qglDisable(GL_DEPTH_TEST);
	qglEnable(GL_SCISSOR_TEST);
	qglDisable(GL_CULL_FACE);
	qglDisable(GL_BLEND);
}
Example #11
0
/*
* RB_SetGLDefaults
*/
static void RB_SetGLDefaults( void )
{
	int i;

	qglClearColor( 1, 0, 0.5, 0.5 );

	if( glConfig.stencilEnabled )
	{
		qglStencilMask( ( GLuint ) ~0 );
		qglStencilFunc( GL_EQUAL, 128, 0xFF );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
	}

	// properly disable multitexturing at startup
	for( i = glConfig.maxTextureUnits-1; i >= 0; i-- )
	{
		RB_SelectTextureUnit( i );
		qglDisable( GL_TEXTURE_2D );
	}
	qglEnable( GL_TEXTURE_2D );

	qglDisable( GL_CULL_FACE );
	qglFrontFace( GL_CCW );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_BLEND );
	qglDisable( GL_ALPHA_TEST );
	qglDepthFunc( GL_LEQUAL );
	qglDepthMask( GL_FALSE );
	qglDisable( GL_POLYGON_OFFSET_FILL );
	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
	qglEnable( GL_DEPTH_TEST );
	qglShadeModel( GL_SMOOTH );
	if( qglPolygonMode ) {
		qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
	}
	qglFrontFace( GL_CCW );

	rb.gl.state = 0;
	rb.gl.frontFace = qfalse;
	rb.gl.currentTMU = -1;
	rb.gl.faceCull = 0;
	rb.gl.polygonOffset[0] = rb.gl.polygonOffset[1] = 0;
	memset( rb.gl.currentTextures, 0, sizeof( rb.gl.currentTextures ) );
}
Example #12
0
/*
* RB_SetGLDefaults
*/
static void RB_SetGLDefaults( void )
{
	if( glConfig.stencilBits )
	{
		qglStencilMask( ( GLuint ) ~0 );
		qglStencilFunc( GL_EQUAL, 128, 0xFF );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );
	}

	qglDisable( GL_CULL_FACE );
	qglFrontFace( GL_CCW );
	qglDisable( GL_BLEND );
	qglDepthFunc( GL_LEQUAL );
	qglDepthMask( GL_FALSE );
	qglDisable( GL_POLYGON_OFFSET_FILL );
	qglPolygonOffset( -1.0f, 0.0f ); // units will be handled by RB_DepthOffset
	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
	qglEnable( GL_DEPTH_TEST );
#ifndef GL_ES_VERSION_2_0
	qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
#endif
	qglFrontFace( GL_CCW );
}
Example #13
0
/*
** GL_State
**
** This routine is responsible for setting the most commonly changed state
** in Q3.
*/
void GL_State( unsigned long stateBits )
{
	unsigned long diff = stateBits ^ glState.glStateBits;

	if ( !diff )
	{
		return;
	}

	//
	// check depthFunc bits
	//
	if ( diff & GLS_DEPTHFUNC_EQUAL )
	{
		if ( stateBits & GLS_DEPTHFUNC_EQUAL )
		{
			qglDepthFunc( GL_EQUAL );
		}
		else
		{
			qglDepthFunc( GL_LEQUAL );
		}
	}

	//
	// check blend bits
	//
	if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
	{
		GLenum srcFactor, dstFactor;

		if ( stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
		{
			switch ( stateBits & GLS_SRCBLEND_BITS )
			{
			case GLS_SRCBLEND_ZERO:
				srcFactor = GL_ZERO;
				break;
			case GLS_SRCBLEND_ONE:
				srcFactor = GL_ONE;
				break;
			case GLS_SRCBLEND_DST_COLOR:
				srcFactor = GL_DST_COLOR;
				break;
			case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
				srcFactor = GL_ONE_MINUS_DST_COLOR;
				break;
			case GLS_SRCBLEND_SRC_ALPHA:
				srcFactor = GL_SRC_ALPHA;
				break;
			case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
				srcFactor = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLS_SRCBLEND_DST_ALPHA:
				srcFactor = GL_DST_ALPHA;
				break;
			case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
				srcFactor = GL_ONE_MINUS_DST_ALPHA;
				break;
			case GLS_SRCBLEND_ALPHA_SATURATE:
				srcFactor = GL_SRC_ALPHA_SATURATE;
				break;
			default:
				srcFactor = GL_ONE;		// to get warning to shut up
				ri.Error( ERR_DROP, "GL_State: invalid src blend state bits\n" );
				break;
			}

			switch ( stateBits & GLS_DSTBLEND_BITS )
			{
			case GLS_DSTBLEND_ZERO:
				dstFactor = GL_ZERO;
				break;
			case GLS_DSTBLEND_ONE:
				dstFactor = GL_ONE;
				break;
			case GLS_DSTBLEND_SRC_COLOR:
				dstFactor = GL_SRC_COLOR;
				break;
			case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
				dstFactor = GL_ONE_MINUS_SRC_COLOR;
				break;
			case GLS_DSTBLEND_SRC_ALPHA:
				dstFactor = GL_SRC_ALPHA;
				break;
			case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
				dstFactor = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLS_DSTBLEND_DST_ALPHA:
				dstFactor = GL_DST_ALPHA;
				break;
			case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
				dstFactor = GL_ONE_MINUS_DST_ALPHA;
				break;
			default:
				dstFactor = GL_ONE;		// to get warning to shut up
				ri.Error( ERR_DROP, "GL_State: invalid dst blend state bits\n" );
				break;
			}

			qglEnable( GL_BLEND );
			qglBlendFunc( srcFactor, dstFactor );
		}
		else
		{
			qglDisable( GL_BLEND );
		}
	}

	//
	// check depthmask
	//
	if ( diff & GLS_DEPTHMASK_TRUE )
	{
		if ( stateBits & GLS_DEPTHMASK_TRUE )
		{
			qglDepthMask( GL_TRUE );
		}
		else
		{
			qglDepthMask( GL_FALSE );
		}
	}

	//
	// fill/line mode
	//
	if ( diff & GLS_POLYMODE_LINE )
	{
		if ( stateBits & GLS_POLYMODE_LINE )
		{
			qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
		}
		else
		{
			qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
		}
	}

	//
	// depthtest
	//
	if ( diff & GLS_DEPTHTEST_DISABLE )
	{
		if ( stateBits & GLS_DEPTHTEST_DISABLE )
		{
			qglDisable( GL_DEPTH_TEST );
		}
		else
		{
			qglEnable( GL_DEPTH_TEST );
		}
	}

	//
	// alpha test
	//
	if ( diff & GLS_ATEST_BITS )
	{
		switch ( stateBits & GLS_ATEST_BITS )
		{
		case 0:
			qglDisable( GL_ALPHA_TEST );
			break;
		case GLS_ATEST_GT_0:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_GREATER, 0.0f );
			break;
		case GLS_ATEST_LT_80:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_LESS, 0.5f );
			break;
		case GLS_ATEST_GE_80:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_GEQUAL, 0.5f );
			break;
		default:
			assert( 0 );
			break;
		}
	}

	glState.glStateBits = stateBits;
}
Example #14
0
/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void ) {
	qglClearDepth( 1.0f );

	qglCullFace( GL_FRONT );

	qglColor4f( 1,1,1,1 );

	// initialize downstream texture unit if we're running
	// in a multitexture environment
	if ( qglActiveTextureARB ) {
		GL_SelectTexture( 1 );
		GL_TextureMode( r_textureMode->string );
		GL_TexEnv( GL_MODULATE );
		qglDisable( GL_TEXTURE_2D );
		GL_SelectTexture( 0 );
	}

	qglEnable( GL_TEXTURE_2D );
	GL_TextureMode( r_textureMode->string );
	GL_TexEnv( GL_MODULATE );

	qglShadeModel( GL_SMOOTH );
	qglDepthFunc( GL_LEQUAL );

	// the vertex array is always enabled, but the color and texture
	// arrays are enabled and disabled around the compiled vertex array call
	qglEnableClientState( GL_VERTEX_ARRAY );

	//
	// make sure our GL state vector is set correctly
	//
	glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;

#ifdef USE_OPENGLES
	glPixelStorei(GL_PACK_ALIGNMENT, 1);
	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
#else
	qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
#endif
	qglDepthMask( GL_TRUE );
	qglDisable( GL_DEPTH_TEST );
	qglEnable( GL_SCISSOR_TEST );
	qglDisable( GL_CULL_FACE );
	qglDisable( GL_BLEND );

#ifndef USE_OPENGLES
//----(SA)	added.
	// ATI pn_triangles
	if ( qglPNTrianglesiATI ) {
		int maxtess;
		// get max supported tesselation
		qglGetIntegerv( GL_MAX_PN_TRIANGLES_TESSELATION_LEVEL_ATI, (GLint*)&maxtess );
		glConfig.ATIMaxTruformTess = maxtess;
		// cap if necessary
		if ( r_ati_truform_tess->value > maxtess ) {
			ri.Cvar_Set( "r_ati_truform_tess", va( "%d", maxtess ) );
		}

		// set Wolf defaults
		qglPNTrianglesiATI( GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI, r_ati_truform_tess->value );
	}
//----(SA)	end
#endif

	if ( glConfig.anisotropicAvailable ) {
		float maxAnisotropy;

		qglGetFloatv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAnisotropy );
		glConfig.maxAnisotropy = maxAnisotropy;

		// set when rendering
//	   qglTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, glConfig.maxAnisotropy);
	}
}
Example #15
0
/*
* RB_SetState
*/
void RB_SetState( int state )
{
    int diff;

    diff = rb.gl.state ^ state;
    if( !diff )
        return;

    if( diff & GLSTATE_BLEND_MASK )
    {
        if( state & GLSTATE_BLEND_MASK )
        {
            int blendsrc, blenddst;

            switch( state & GLSTATE_SRCBLEND_MASK )
            {
            case GLSTATE_SRCBLEND_ZERO:
                blendsrc = GL_ZERO;
                break;
            case GLSTATE_SRCBLEND_DST_COLOR:
                blendsrc = GL_DST_COLOR;
                break;
            case GLSTATE_SRCBLEND_ONE_MINUS_DST_COLOR:
                blendsrc = GL_ONE_MINUS_DST_COLOR;
                break;
            case GLSTATE_SRCBLEND_SRC_ALPHA:
                blendsrc = GL_SRC_ALPHA;
                break;
            case GLSTATE_SRCBLEND_ONE_MINUS_SRC_ALPHA:
                blendsrc = GL_ONE_MINUS_SRC_ALPHA;
                break;
            case GLSTATE_SRCBLEND_DST_ALPHA:
                blendsrc = GL_DST_ALPHA;
                break;
            case GLSTATE_SRCBLEND_ONE_MINUS_DST_ALPHA:
                blendsrc = GL_ONE_MINUS_DST_ALPHA;
                break;
            default:
            case GLSTATE_SRCBLEND_ONE:
                blendsrc = GL_ONE;
                break;
            }

            switch( state & GLSTATE_DSTBLEND_MASK )
            {
            case GLSTATE_DSTBLEND_ONE:
                blenddst = GL_ONE;
                break;
            case GLSTATE_DSTBLEND_SRC_COLOR:
                blenddst = GL_SRC_COLOR;
                break;
            case GLSTATE_DSTBLEND_ONE_MINUS_SRC_COLOR:
                blenddst = GL_ONE_MINUS_SRC_COLOR;
                break;
            case GLSTATE_DSTBLEND_SRC_ALPHA:
                blenddst = GL_SRC_ALPHA;
                break;
            case GLSTATE_DSTBLEND_ONE_MINUS_SRC_ALPHA:
                blenddst = GL_ONE_MINUS_SRC_ALPHA;
                break;
            case GLSTATE_DSTBLEND_DST_ALPHA:
                blenddst = GL_DST_ALPHA;
                break;
            case GLSTATE_DSTBLEND_ONE_MINUS_DST_ALPHA:
                blenddst = GL_ONE_MINUS_DST_ALPHA;
                break;
            default:
            case GLSTATE_DSTBLEND_ZERO:
                blenddst = GL_ZERO;
                break;
            }

            if( !( rb.gl.state & GLSTATE_BLEND_MASK ) )
                qglEnable( GL_BLEND );

            qglBlendFuncSeparateEXT( blendsrc, blenddst, GL_ONE, GL_ONE );
        }
        else
        {
            qglDisable( GL_BLEND );
        }
    }

    if( diff & (GLSTATE_NO_COLORWRITE|GLSTATE_ALPHAWRITE) )
    {
        if( state & GLSTATE_NO_COLORWRITE )
            qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
        else
            qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, ( state & GLSTATE_ALPHAWRITE ) ? GL_TRUE : GL_FALSE );
    }

    if( diff & (GLSTATE_DEPTHFUNC_EQ|GLSTATE_DEPTHFUNC_GT) )
    {
        if( state & GLSTATE_DEPTHFUNC_EQ )
            qglDepthFunc( GL_EQUAL );
        else if( state & GLSTATE_DEPTHFUNC_GT )
            qglDepthFunc( GL_GREATER );
        else
            qglDepthFunc( GL_LEQUAL );
    }

    if( diff & GLSTATE_DEPTHWRITE )
    {
        if( state & GLSTATE_DEPTHWRITE )
            qglDepthMask( GL_TRUE );
        else
            qglDepthMask( GL_FALSE );
    }

    if( diff & GLSTATE_NO_DEPTH_TEST )
    {
        if( state & GLSTATE_NO_DEPTH_TEST )
            qglDisable( GL_DEPTH_TEST );
        else
            qglEnable( GL_DEPTH_TEST );
    }

    if( diff & GLSTATE_OFFSET_FILL )
    {
        if( state & GLSTATE_OFFSET_FILL )
        {
            qglEnable( GL_POLYGON_OFFSET_FILL );
            RB_DepthOffset( true );
        }
        else
        {
            qglDisable( GL_POLYGON_OFFSET_FILL );
            RB_DepthOffset( false );
        }
    }

    if( diff & GLSTATE_STENCIL_TEST )
    {
        if( glConfig.stencilBits )
        {
            if( state & GLSTATE_STENCIL_TEST )
                qglEnable( GL_STENCIL_TEST );
            else
                qglDisable( GL_STENCIL_TEST );
        }
    }

    if( diff & GLSTATE_ALPHATEST )
    {
        if( glConfig.ext.multisample ) {
            if( state & GLSTATE_ALPHATEST )
                qglEnable( GL_SAMPLE_ALPHA_TO_COVERAGE_ARB );
            else
                qglDisable( GL_SAMPLE_ALPHA_TO_COVERAGE_ARB );
        }
    }

    rb.gl.state = state;
}
Example #16
0
void RB_DoShadowTessEnd( vec3_t lightPos )
{
#ifndef _XBOX
	int		i;
	int		numTris;
	vec3_t	lightDir;

	// we can only do this if we have enough space in the vertex buffers
	if ( tess.numVertexes >= SHADER_MAX_VERTEXES / 2 ) {
		return;
	}

	if ( glConfig.stencilBits < 4 ) {
		return;
	}

#if 1 //controlled method - try to keep shadows in range so they don't show through so much -rww
	vec3_t	worldxyz;
	vec3_t	entLight;
	float	groundDist;

	VectorCopy( backEnd.currentEntity->lightDir, entLight );
	entLight[2] = 0.0f;
	VectorNormalize(entLight);

	//Oh well, just cast them straight down no matter what onto the ground plane.
	//This presets no chance of screwups and still looks better than a stupid
	//shader blob.
	VectorSet(lightDir, entLight[0]*0.3f, entLight[1]*0.3f, 1.0f);
	// project vertexes away from light direction
	for ( i = 0 ; i < tess.numVertexes ; i++ ) {
		//add or.origin to vert xyz to end up with world oriented coord, then figure
		//out the ground pos for the vert to project the shadow volume to
		VectorAdd(tess.xyz[i], backEnd.ori.origin, worldxyz);
		groundDist = worldxyz[2] - backEnd.currentEntity->e.shadowPlane;
		groundDist += 16.0f; //fudge factor
		VectorMA( tess.xyz[i], -groundDist, lightDir, tess.xyz[i+tess.numVertexes] );
	}
#else
	if (lightPos)
	{
		for ( i = 0 ; i < tess.numVertexes ; i++ )
		{
			tess.xyz[i+tess.numVertexes][0] = tess.xyz[i][0]+(( tess.xyz[i][0]-lightPos[0] )*128.0f);
			tess.xyz[i+tess.numVertexes][1] = tess.xyz[i][1]+(( tess.xyz[i][1]-lightPos[1] )*128.0f);
			tess.xyz[i+tess.numVertexes][2] = tess.xyz[i][2]+(( tess.xyz[i][2]-lightPos[2] )*128.0f);
		}
	}
	else
	{
		VectorCopy( backEnd.currentEntity->lightDir, lightDir );

		// project vertexes away from light direction
		for ( i = 0 ; i < tess.numVertexes ; i++ ) {
			VectorMA( tess.xyz[i], -512, lightDir, tess.xyz[i+tess.numVertexes] );
		}
	}
#endif
	// decide which triangles face the light
	memset( numEdgeDefs, 0, 4 * tess.numVertexes );

	numTris = tess.numIndexes / 3;
	for ( i = 0 ; i < numTris ; i++ ) {
		int		i1, i2, i3;
		vec3_t	d1, d2, normal;
		float	*v1, *v2, *v3;
		float	d;

		i1 = tess.indexes[ i*3 + 0 ];
		i2 = tess.indexes[ i*3 + 1 ];
		i3 = tess.indexes[ i*3 + 2 ];

		v1 = tess.xyz[ i1 ];
		v2 = tess.xyz[ i2 ];
		v3 = tess.xyz[ i3 ];

		if (!lightPos)
		{
			VectorSubtract( v2, v1, d1 );
			VectorSubtract( v3, v1, d2 );
			CrossProduct( d1, d2, normal );

			d = DotProduct( normal, lightDir );
		}
		else
		{
			float planeEq[4];
			planeEq[0] = v1[1]*(v2[2]-v3[2]) + v2[1]*(v3[2]-v1[2]) + v3[1]*(v1[2]-v2[2]);
			planeEq[1] = v1[2]*(v2[0]-v3[0]) + v2[2]*(v3[0]-v1[0]) + v3[2]*(v1[0]-v2[0]);
			planeEq[2] = v1[0]*(v2[1]-v3[1]) + v2[0]*(v3[1]-v1[1]) + v3[0]*(v1[1]-v2[1]);
			planeEq[3] = -( v1[0]*( v2[1]*v3[2] - v3[1]*v2[2] ) +
						v2[0]*(v3[1]*v1[2] - v1[1]*v3[2]) +
						v3[0]*(v1[1]*v2[2] - v2[1]*v1[2]) );

			d = planeEq[0]*lightPos[0]+
				planeEq[1]*lightPos[1]+
				planeEq[2]*lightPos[2]+
				planeEq[3];
		}

		if ( d > 0 ) {
			facing[ i ] = 1;
		} else {
			facing[ i ] = 0;
		}

		// create the edges
		R_AddEdgeDef( i1, i2, facing[ i ] );
		R_AddEdgeDef( i2, i3, facing[ i ] );
		R_AddEdgeDef( i3, i1, facing[ i ] );
	}

	GL_Bind( tr.whiteImage );
	//qglEnable( GL_CULL_FACE );
	GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );

#ifndef _DEBUG_STENCIL_SHADOWS
	qglColor3f( 0.2f, 0.2f, 0.2f );

	// don't write to the color buffer
	qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );

	qglEnable( GL_STENCIL_TEST );
	qglStencilFunc( GL_ALWAYS, 1, 255 );
#else
	qglColor3f( 1.0f, 0.0f, 0.0f );
	qglPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
	//qglDisable(GL_DEPTH_TEST);
#endif

#ifdef _STENCIL_REVERSE
	qglDepthFunc(GL_LESS);

	//now using the Carmack Reverse<tm> -rww
	if ( backEnd.viewParms.isMirror ) {
		//qglCullFace( GL_BACK );
		GL_Cull(CT_BACK_SIDED);
		qglStencilOp( GL_KEEP, GL_INCR, GL_KEEP );

		R_RenderShadowEdges();

		//qglCullFace( GL_FRONT );
		GL_Cull(CT_FRONT_SIDED);
		qglStencilOp( GL_KEEP, GL_DECR, GL_KEEP );

		R_RenderShadowEdges();
	} else {
		//qglCullFace( GL_FRONT );
		GL_Cull(CT_FRONT_SIDED);
		qglStencilOp( GL_KEEP, GL_INCR, GL_KEEP );

		R_RenderShadowEdges();

		//qglCullFace( GL_BACK );
		GL_Cull(CT_BACK_SIDED);
		qglStencilOp( GL_KEEP, GL_DECR, GL_KEEP );

		R_RenderShadowEdges();
	}

	qglDepthFunc(GL_LEQUAL);
#else
	// mirrors have the culling order reversed
	if ( backEnd.viewParms.isMirror ) {
		qglCullFace( GL_FRONT );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );

		R_RenderShadowEdges();

		qglCullFace( GL_BACK );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );

		R_RenderShadowEdges();
	} else {
		qglCullFace( GL_BACK );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_INCR );

		R_RenderShadowEdges();

		qglCullFace( GL_FRONT );
		qglStencilOp( GL_KEEP, GL_KEEP, GL_DECR );

		R_RenderShadowEdges();
	}
#endif

	// reenable writing to the color buffer
	qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );

#ifdef _DEBUG_STENCIL_SHADOWS
	qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#endif
#endif // _XBOX
}
Example #17
0
/*
 ==================
 GL_SetDefaultState
 ==================
*/
void GL_SetDefaultState (){

	int		i;

	QGL_LogPrintf("---------- GL_SetDefaultState ----------\n");

	// Reset the state manager
	glState.projectionMatrixIdentity = true;
	glState.modelviewMatrixIdentity = true;

	for (i = 0; i < MAX_TEXTURE_UNITS; i++)
		glState.textureMatrixIdentity[i] = true;

	for (i = 0; i < MAX_TEXTURE_UNITS; i++)
		glState.texture[i] = NULL;

	glState.program = NULL;
	glState.indexBuffer = NULL;
	glState.vertexBuffer = NULL;

	glState.viewportX = 0;
	glState.viewportY = 0;
	glState.viewportWidth = glConfig.videoWidth;
	glState.viewportHeight = glConfig.videoHeight;

	glState.scissorX = 0;
	glState.scissorY = 0;
	glState.scissorWidth = glConfig.videoWidth;
	glState.scissorHeight = glConfig.videoHeight;

	glState.depthBoundsMin = 0.0f;
	glState.depthBoundsMax = 1.0f;

	glState.texUnit = 0;

	for (i = 0; i < MAX_TEXTURE_UNITS; i++){
		glState.texTarget[i] = 0;

		glState.texEnv[i] = GL_MODULATE;

		glState.texGen[i][0] = GL_OBJECT_LINEAR;
		glState.texGen[i][1] = GL_OBJECT_LINEAR;
		glState.texGen[i][2] = GL_OBJECT_LINEAR;
		glState.texGen[i][3] = GL_OBJECT_LINEAR;
	}

	glState.cullFace = false;
	glState.polygonOffsetFill = false;
	glState.polygonOffsetLine = false;
	glState.blend = false;
	glState.alphaTest = false;
	glState.depthTest = false;
	glState.stencilTest = false;

	for (i = 0; i < MAX_TEXTURE_UNITS; i++){
		glState.textureGen[i][0] = false;
		glState.textureGen[i][1] = false;
		glState.textureGen[i][2] = false;
		glState.textureGen[i][3] = false;
	}

	glState.cullMode = GL_FRONT;
	glState.polygonMode = GL_FILL;
	glState.polygonOffsetFactor = 0.0f;
	glState.polygonOffsetUnits = 0.0f;
	glState.blendSrc = GL_ONE;
	glState.blendDst = GL_ZERO;
	glState.blendMode = GL_FUNC_ADD;
	glState.alphaFunc = GL_GREATER;
	glState.alphaFuncRef = 0.0f;
	glState.depthFunc = GL_LEQUAL;
	glState.stencilFunc[0] = GL_ALWAYS;
	glState.stencilFunc[1] = GL_ALWAYS;
	glState.stencilFuncRef[0] = 0;
	glState.stencilFuncRef[1] = 0;
	glState.stencilFuncMask[0] = 255;
	glState.stencilFuncMask[1] = 255;
	glState.stencilOpFail[0] = GL_KEEP;
	glState.stencilOpFail[1] = GL_KEEP;
	glState.stencilOpZFail[0] = GL_KEEP;
	glState.stencilOpZFail[1] = GL_KEEP;
	glState.stencilOpZPass[0] = GL_KEEP;
	glState.stencilOpZPass[1] = GL_KEEP;
	glState.depthMin = 0.0f;
	glState.depthMax = 1.0f;

	glState.colorMask[0] = GL_TRUE;
	glState.colorMask[1] = GL_TRUE;
	glState.colorMask[2] = GL_TRUE;
	glState.colorMask[3] = GL_TRUE;
	glState.depthMask = GL_TRUE;
	glState.stencilMask[0] = 255;
	glState.stencilMask[1] = 255;

	// Set default state
	qglMatrixMode(GL_PROJECTION);
	qglLoadIdentity();

	qglMatrixMode(GL_MODELVIEW);
	qglLoadIdentity();

	for (i = MAX_TEXTURE_UNITS - 1; i >= 0; i--){
		if (i >= glConfig.maxTextureImageUnits)
			continue;

		if (i >= glConfig.maxTextureUnits){
			qglActiveTexture(GL_TEXTURE0 + i);

			qglBindTexture(GL_TEXTURE_2D, 0);
			qglBindTexture(GL_TEXTURE_3D, 0);
			qglBindTexture(GL_TEXTURE_CUBE_MAP, 0);
			qglBindTexture(GL_TEXTURE_2D_ARRAY, 0);

			continue;
		}

		qglActiveTexture(GL_TEXTURE0 + i);

		qglMatrixMode(GL_TEXTURE);
		qglLoadIdentity();

		qglDisable(GL_TEXTURE_2D);
		qglDisable(GL_TEXTURE_3D);
		qglDisable(GL_TEXTURE_CUBE_MAP);
		qglDisable(GL_TEXTURE_2D_ARRAY);

		qglBindTexture(GL_TEXTURE_2D, 0);
		qglBindTexture(GL_TEXTURE_3D, 0);
		qglBindTexture(GL_TEXTURE_CUBE_MAP, 0);
		qglBindTexture(GL_TEXTURE_2D_ARRAY, 0);

		qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

		qglDisable(GL_TEXTURE_GEN_S);
		qglDisable(GL_TEXTURE_GEN_T);
		qglDisable(GL_TEXTURE_GEN_R);
		qglDisable(GL_TEXTURE_GEN_Q);

		qglTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
		qglTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
		qglTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
		qglTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR);
	}

	qglDisable(GL_TEXTURE_CUBE_MAP_SEAMLESS);

	qglUseProgram(0);

	qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
	qglBindBuffer(GL_ARRAY_BUFFER, 0);

	qglViewport(0, 0, glConfig.videoWidth, glConfig.videoHeight);

	qglEnable(GL_SCISSOR_TEST);
	qglScissor(0, 0, glConfig.videoWidth, glConfig.videoHeight);

	qglEnable(GL_DEPTH_BOUNDS_TEST_EXT);
	qglDepthBoundsEXT(0.0f, 1.0f);

	qglFrontFace(GL_CCW);

	qglShadeModel(GL_SMOOTH);

	qglPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

	qglDisable(GL_CULL_FACE);
	qglCullFace(GL_FRONT);

	qglDisable(GL_POLYGON_OFFSET_FILL);
	qglDisable(GL_POLYGON_OFFSET_LINE);
	qglPolygonOffset(0.0f, 0.0f);

	qglDisable(GL_BLEND);
	qglBlendFunc(GL_ONE, GL_ZERO);
	qglBlendEquation(GL_FUNC_ADD);

	qglDisable(GL_ALPHA_TEST);
	qglAlphaFunc(GL_GREATER, 0.0f);

	qglDisable(GL_DEPTH_TEST);
	qglDepthFunc(GL_LEQUAL);

	qglDisable(GL_STENCIL_TEST);
	qglStencilFunc(GL_ALWAYS, 128, 255);
	qglStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);

	qglDepthRange(0.0f, 1.0f);

	qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
	qglDepthMask(GL_TRUE);
	qglStencilMask(255);

	qglDisable(GL_DEPTH_CLAMP);

	qglDisable(GL_CLIP_PLANE0);

	if (glConfig.multiSamples > 1){
		qglDisable(GL_MULTISAMPLE);

		qglDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
	}

	qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
	qglClearDepth(1.0f);
	qglClearStencil(128);

	qglEnableClientState(GL_VERTEX_ARRAY);

	qglDisableVertexAttribArray(GL_ATTRIB_NORMAL);
	qglDisableVertexAttribArray(GL_ATTRIB_TANGENT1);
	qglDisableVertexAttribArray(GL_ATTRIB_TANGENT2);
	qglDisableVertexAttribArray(GL_ATTRIB_TEXCOORD);
	qglDisableVertexAttribArray(GL_ATTRIB_COLOR);

	QGL_LogPrintf("--------------------\n");
}
Example #18
0
/*
==============
RenderBumpFlat_f

==============
*/
void RenderBumpFlat_f( const idCmdArgs &args ) {
	int		width, height;
	idStr	source;
	int		i;
	idBounds	bounds;
	srfTriangles_t	*mesh;

	// update the screen as we print
	common->SetRefreshOnPrint( true );

	width = height = 256;

	// check options
	for ( i = 1 ; i < args.Argc() - 1; i++ ) {
		const char *s;

		s = args.Argv( i );
		if ( s[0] == '-' ) {
			i++;
			s = args.Argv( i );
		}

		if ( !idStr::Icmp( s, "size" ) ) {
			if ( i + 2 >= args.Argc() ) {
				i = args.Argc();
				break;
			}
			width = atoi( args.Argv( i + 1 ) );
			height = atoi( args.Argv( i + 2 ) );
			i += 2;
		} else {
			common->Printf( "WARNING: Unknown option \"%s\"\n", s );
			break;
		}
	}

	if ( i != ( args.Argc() - 1 ) ) {
		common->Error( "usage: renderBumpFlat [-size width height] asefile" );
		return;
	}

	common->Printf( "Final image size: %i, %i\n", width, height );

	// load the source in "fastload" mode, because we don't
	// need tangent and shadow information
	source = args.Argv( i );

	idRenderModel *highPolyModel = renderModelManager->AllocModel();

	highPolyModel->PartialInitFromFile( source );

	if ( highPolyModel->IsDefaultModel() ) {
		common->Error( "failed to load %s", source.c_str() );
	}

	// combine the high poly model into a single polyset
	if ( highPolyModel->NumSurfaces() != 1 ) {
		highPolyModel = CombineModelSurfaces( highPolyModel );
	}

	// create normals if not present in file
	const modelSurface_t *surf = highPolyModel->Surface( 0 );
	mesh = surf->geometry;

	// bound the entire file
	R_BoundTriSurf( mesh );
	bounds = mesh->bounds;

	SaveWindow();
	ResizeWindow( width, height );

	// for small images, the viewport may be less than the minimum window
	qglViewport( 0, 0, width, height );

	qglEnable( GL_CULL_FACE );
	qglCullFace( GL_FRONT );
	qglDisable( GL_STENCIL_TEST );
	qglDisable( GL_SCISSOR_TEST );
	qglDisable( GL_ALPHA_TEST );
	qglDisable( GL_BLEND );
	qglEnable( GL_DEPTH_TEST );
	qglDisable( GL_TEXTURE_2D );
	qglDepthMask( GL_TRUE );
	qglDepthFunc( GL_LEQUAL );

	qglColor3f( 1, 1, 1 );

	qglMatrixMode( GL_PROJECTION );
	qglLoadIdentity();
	qglOrtho( bounds[0][0], bounds[1][0], bounds[0][2],
		bounds[1][2], -( bounds[0][1] - 1 ), -( bounds[1][1] + 1 ) );

	qglMatrixMode( GL_MODELVIEW );
	qglLoadIdentity();

	// flat maps are automatically anti-aliased

	idStr	filename;
	int		j, k, c;
	byte	*buffer;
	int		*sumBuffer, *colorSumBuffer;
	bool	flat;
	int		sample;

	sumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
	memset( sumBuffer, 0, width * height * 4 * 4 );
	buffer = (byte *)Mem_Alloc( width * height * 4 );

	colorSumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
	memset( sumBuffer, 0, width * height * 4 * 4 );

	flat = false;
//flat = true;

	for ( sample = 0 ; sample < 16 ; sample++ ) {
		float	xOff, yOff;

		xOff = ( ( sample & 3 ) / 4.0 ) * ( bounds[1][0] - bounds[0][0] ) / width;
		yOff = ( ( sample / 4 ) / 4.0 ) * ( bounds[1][2] - bounds[0][2] ) / height;

		for ( int colorPass = 0 ; colorPass < 2 ; colorPass++ ) {
			qglClearColor(0.5,0.5,0.5,0);
			qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

			qglBegin( GL_TRIANGLES );
			for ( i = 0 ; i < highPolyModel->NumSurfaces() ; i++ ) {
				const modelSurface_t *surf = highPolyModel->Surface( i );

				mesh = surf->geometry;

				if ( colorPass ) {
					// just render the surface color for artist visualization
					for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
						for ( k = 0 ; k < 3 ; k++ ) {
							int		v;
							float	*a;

							v = mesh->indexes[j+k];
							qglColor3ubv( mesh->verts[v].color );
							a = mesh->verts[v].xyz.ToFloatPtr();
							qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
						}
					}
				} else {
					// render as normal map
					// we can either flat shade from the plane,
					// or smooth shade from the vertex normals
					for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
						if ( flat ) {
							idPlane		plane;
							idVec3		*a, *b, *c;
							int			v1, v2, v3;

							v1 = mesh->indexes[j+0];
							v2 = mesh->indexes[j+1];
							v3 = mesh->indexes[j+2];

							a = &mesh->verts[ v1 ].xyz;
							b = &mesh->verts[ v2 ].xyz;
							c = &mesh->verts[ v3 ].xyz;

							plane.FromPoints( *a, *b, *c );

							// NULLNORMAL is used by the artists to force an area to reflect no
							// light at all
							if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
								qglColor3f( 0.5, 0.5, 0.5 );
							} else {
								qglColor3f( 0.5 + 0.5*plane[0], 0.5 - 0.5*plane[2], 0.5 - 0.5*plane[1] );
							}

							qglVertex3f( (*a)[0] + xOff, (*a)[2] + yOff, (*a)[1] );
							qglVertex3f( (*b)[0] + xOff, (*b)[2] + yOff, (*b)[1] );
							qglVertex3f( (*c)[0] + xOff, (*c)[2] + yOff, (*c)[1] );
						} else {
							for ( k = 0 ; k < 3 ; k++ ) {
								int		v;
								float	*n;
								float	*a;

								v = mesh->indexes[j+k];
								n = mesh->verts[v].normal.ToFloatPtr();

								// NULLNORMAL is used by the artists to force an area to reflect no
								// light at all
								if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
									qglColor3f( 0.5, 0.5, 0.5 );
								} else {
								// we are going to flip the normal Z direction
									qglColor3f( 0.5 + 0.5*n[0], 0.5 - 0.5*n[2], 0.5 - 0.5*n[1] );
								}

								a = mesh->verts[v].xyz.ToFloatPtr();
								qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
							}
						}
					}
				}
			}

			qglEnd();
			qglFlush();
			GLimp_SwapBuffers();
			qglReadPixels( 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );

			c = width * height;

			if ( colorPass ) {
				// add to the sum buffer
				for ( i = 0 ; i < c ; i++ ) {
					colorSumBuffer[i*4+0] += buffer[i*4+0];
					colorSumBuffer[i*4+1] += buffer[i*4+1];
					colorSumBuffer[i*4+2] += buffer[i*4+2];
					colorSumBuffer[i*4+3] += buffer[i*4+3];
				}
			} else {
				// normalize
				for ( i = 0 ; i < c ; i++ ) {
					idVec3	v;

					v[0] = ( buffer[i*4+0] - 128 ) / 127.0;
					v[1] = ( buffer[i*4+1] - 128 ) / 127.0;
					v[2] = ( buffer[i*4+2] - 128 ) / 127.0;

					v.Normalize();

					buffer[i*4+0] = 128 + 127 * v[0];
					buffer[i*4+1] = 128 + 127 * v[1];
					buffer[i*4+2] = 128 + 127 * v[2];
				}

				// outline into non-drawn areas
				for ( i = 0 ; i < 8 ; i++ ) {
					OutlineNormalMap( buffer, width, height, 128, 128, 128 );
				}

				// add to the sum buffer
				for ( i = 0 ; i < c ; i++ ) {
					sumBuffer[i*4+0] += buffer[i*4+0];
					sumBuffer[i*4+1] += buffer[i*4+1];
					sumBuffer[i*4+2] += buffer[i*4+2];
					sumBuffer[i*4+3] += buffer[i*4+3];
				}
			}
		}
	}

	c = width * height;

	// save out the color map
	for ( i = 0 ; i < c ; i++ ) {
		buffer[i*4+0] = colorSumBuffer[i*4+0] / 16;
		buffer[i*4+1] = colorSumBuffer[i*4+1] / 16;
		buffer[i*4+2] = colorSumBuffer[i*4+2] / 16;
		buffer[i*4+3] = colorSumBuffer[i*4+3] / 16;
	}
	filename = source;
	filename.StripFileExtension();
	filename.Append( "_color.tga" );
	R_VerticalFlip( buffer, width, height );
	R_WriteTGA( filename, buffer, width, height );

	// save out the local map
	// scale the sum buffer back down to the sample buffer
	// we allow this to denormalize
	for ( i = 0 ; i < c ; i++ ) {
		buffer[i*4+0] = sumBuffer[i*4+0] / 16;
		buffer[i*4+1] = sumBuffer[i*4+1] / 16;
		buffer[i*4+2] = sumBuffer[i*4+2] / 16;
		buffer[i*4+3] = sumBuffer[i*4+3] / 16;
	}

	filename = source;
	filename.StripFileExtension();
	filename.Append( "_local.tga" );
	common->Printf( "writing %s (%i,%i)\n", filename.c_str(), width, height );
	R_VerticalFlip( buffer, width, height );
	R_WriteTGA( filename, buffer, width, height );


	// free the model
	renderModelManager->FreeModel( highPolyModel );

	// free our work buffer
	Mem_Free( buffer );
	Mem_Free( sumBuffer );
	Mem_Free( colorSumBuffer );

	RestoreWindow();

	// stop updating the screen as we print
	common->SetRefreshOnPrint( false );

	common->Error( "Completed." );
}
Example #19
0
/*
* RB_SetState
*/
void RB_SetState( int state )
{
	int diff;

	diff = rb.gl.state ^ state;
	if( !diff )
		return;

	if( diff & ( GLSTATE_SRCBLEND_MASK|GLSTATE_DSTBLEND_MASK ) )
	{
		if( state & ( GLSTATE_SRCBLEND_MASK|GLSTATE_DSTBLEND_MASK ) )
		{
			int blendsrc, blenddst;

			switch( state & GLSTATE_SRCBLEND_MASK )
			{
			case GLSTATE_SRCBLEND_ZERO:
				blendsrc = GL_ZERO;
				break;
			case GLSTATE_SRCBLEND_DST_COLOR:
				blendsrc = GL_DST_COLOR;
				break;
			case GLSTATE_SRCBLEND_ONE_MINUS_DST_COLOR:
				blendsrc = GL_ONE_MINUS_DST_COLOR;
				break;
			case GLSTATE_SRCBLEND_SRC_ALPHA:
				blendsrc = GL_SRC_ALPHA;
				break;
			case GLSTATE_SRCBLEND_ONE_MINUS_SRC_ALPHA:
				blendsrc = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLSTATE_SRCBLEND_DST_ALPHA:
				blendsrc = GL_DST_ALPHA;
				break;
			case GLSTATE_SRCBLEND_ONE_MINUS_DST_ALPHA:
				blendsrc = GL_ONE_MINUS_DST_ALPHA;
				break;
			default:
			case GLSTATE_SRCBLEND_ONE:
				blendsrc = GL_ONE;
				break;
			}

			switch( state & GLSTATE_DSTBLEND_MASK )
			{
			case GLSTATE_DSTBLEND_ONE:
				blenddst = GL_ONE;
				break;
			case GLSTATE_DSTBLEND_SRC_COLOR:
				blenddst = GL_SRC_COLOR;
				break;
			case GLSTATE_DSTBLEND_ONE_MINUS_SRC_COLOR:
				blenddst = GL_ONE_MINUS_SRC_COLOR;
				break;
			case GLSTATE_DSTBLEND_SRC_ALPHA:
				blenddst = GL_SRC_ALPHA;
				break;
			case GLSTATE_DSTBLEND_ONE_MINUS_SRC_ALPHA:
				blenddst = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLSTATE_DSTBLEND_DST_ALPHA:
				blenddst = GL_DST_ALPHA;
				break;
			case GLSTATE_DSTBLEND_ONE_MINUS_DST_ALPHA:
				blenddst = GL_ONE_MINUS_DST_ALPHA;
				break;
			default:
			case GLSTATE_DSTBLEND_ZERO:
				blenddst = GL_ZERO;
				break;
			}

			qglEnable( GL_BLEND );
			qglBlendFunc( blendsrc, blenddst );
		}
		else
		{
			qglDisable( GL_BLEND );
		}
	}

	if( diff & GLSTATE_ALPHAFUNC )
	{
		int alphafunc = state & GLSTATE_ALPHAFUNC;

		if( alphafunc )
		{
			qglEnable( GL_ALPHA_TEST );
			if( alphafunc == GLSTATE_AFUNC_GT0 )
				qglAlphaFunc( GL_GREATER, 0 );
			else if( alphafunc == GLSTATE_AFUNC_LT128 )
				qglAlphaFunc( GL_LESS, 0.5f );
			else
				qglAlphaFunc( GL_GEQUAL, 0.5f );
		}
		else
		{
			qglDisable( GL_ALPHA_TEST );
		}
	}

	if( diff & GLSTATE_NO_COLORWRITE )
	{
		if( state & GLSTATE_NO_COLORWRITE )
		{
			qglShadeModel( GL_FLAT );
			qglColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
		}
		else
		{
			qglShadeModel( GL_SMOOTH );
			qglColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
		}
	}

	if( diff & GLSTATE_DEPTHFUNC_EQ )
	{
		if( state & GLSTATE_DEPTHFUNC_EQ )
			qglDepthFunc( GL_EQUAL );
		else
			qglDepthFunc( GL_LEQUAL );
	}

	if( diff & GLSTATE_DEPTHWRITE )
	{
		if( state & GLSTATE_DEPTHWRITE )
			qglDepthMask( GL_TRUE );
		else
			qglDepthMask( GL_FALSE );
	}

	if( diff & GLSTATE_NO_DEPTH_TEST )
	{
		if( state & GLSTATE_NO_DEPTH_TEST )
			qglDisable( GL_DEPTH_TEST );
		else
			qglEnable( GL_DEPTH_TEST );
	}

	if( diff & GLSTATE_OFFSET_FILL )
	{
		if( state & GLSTATE_OFFSET_FILL )
			qglEnable( GL_POLYGON_OFFSET_FILL );
		else
			qglDisable( GL_POLYGON_OFFSET_FILL );
	}

	if( diff & GLSTATE_STENCIL_TEST )
	{
		if( glConfig.stencilEnabled )
		{
			if( state & GLSTATE_STENCIL_TEST )
				qglEnable( GL_STENCIL_TEST );
			else
				qglDisable( GL_STENCIL_TEST );
		}
	}

	rb.gl.state = state;
}
Example #20
0
/*
** GL_State
**
** This routine is responsible for setting the most commonly changed state
** in Q3.
*/
void GL_State( unsigned long stateBits )
{
	unsigned long diff = stateBits ^ glState.glStateBits;

	if ( !diff )
	{
		return;
	}

	//
	// check depthFunc bits
	//
	if ( diff & GLS_DEPTHFUNC_BITS )
	{
		if ( stateBits & GLS_DEPTHFUNC_EQUAL )
		{
			qglDepthFunc( GL_EQUAL );
		}
		else if ( stateBits & GLS_DEPTHFUNC_GREATER)
		{
			qglDepthFunc( GL_GREATER );
		}
		else
		{
			qglDepthFunc( GL_LEQUAL );
		}
	}

	//
	// check blend bits
	//
	if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) )
	{
		uint32_t oldState = glState.glStateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
		uint32_t newState = stateBits & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
		uint32_t storedState = glState.storedGlState & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );

		if (oldState == 0)
		{
			qglEnable( GL_BLEND );
		}
		else if (newState == 0)
		{
			qglDisable( GL_BLEND );
		}

		if (newState != 0 && storedState != newState)
		{
			GLenum srcFactor = GL_ONE, dstFactor = GL_ONE;

			glState.storedGlState &= ~( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS );
			glState.storedGlState |= newState;

			switch ( stateBits & GLS_SRCBLEND_BITS )
			{
			case GLS_SRCBLEND_ZERO:
				srcFactor = GL_ZERO;
				break;
			case GLS_SRCBLEND_ONE:
				srcFactor = GL_ONE;
				break;
			case GLS_SRCBLEND_DST_COLOR:
				srcFactor = GL_DST_COLOR;
				break;
			case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
				srcFactor = GL_ONE_MINUS_DST_COLOR;
				break;
			case GLS_SRCBLEND_SRC_ALPHA:
				srcFactor = GL_SRC_ALPHA;
				break;
			case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
				srcFactor = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLS_SRCBLEND_DST_ALPHA:
				srcFactor = GL_DST_ALPHA;
				break;
			case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
				srcFactor = GL_ONE_MINUS_DST_ALPHA;
				break;
			case GLS_SRCBLEND_ALPHA_SATURATE:
				srcFactor = GL_SRC_ALPHA_SATURATE;
				break;
			default:
				ri.Error( ERR_DROP, "GL_State: invalid src blend state bits" );
				break;
			}

			switch ( stateBits & GLS_DSTBLEND_BITS )
			{
			case GLS_DSTBLEND_ZERO:
				dstFactor = GL_ZERO;
				break;
			case GLS_DSTBLEND_ONE:
				dstFactor = GL_ONE;
				break;
			case GLS_DSTBLEND_SRC_COLOR:
				dstFactor = GL_SRC_COLOR;
				break;
			case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
				dstFactor = GL_ONE_MINUS_SRC_COLOR;
				break;
			case GLS_DSTBLEND_SRC_ALPHA:
				dstFactor = GL_SRC_ALPHA;
				break;
			case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
				dstFactor = GL_ONE_MINUS_SRC_ALPHA;
				break;
			case GLS_DSTBLEND_DST_ALPHA:
				dstFactor = GL_DST_ALPHA;
				break;
			case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
				dstFactor = GL_ONE_MINUS_DST_ALPHA;
				break;
			default:
				ri.Error( ERR_DROP, "GL_State: invalid dst blend state bits" );
				break;
			}

			qglBlendFunc( srcFactor, dstFactor );
		}
	}

	//
	// check depthmask
	//
	if ( diff & GLS_DEPTHMASK_TRUE )
	{
		if ( stateBits & GLS_DEPTHMASK_TRUE )
		{
			qglDepthMask( GL_TRUE );
		}
		else
		{
			qglDepthMask( GL_FALSE );
		}
	}

	//
	// fill/line mode
	//
	if ( diff & GLS_POLYMODE_LINE )
	{
		if ( stateBits & GLS_POLYMODE_LINE )
		{
			qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
		}
		else
		{
			qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
		}
	}

	//
	// depthtest
	//
	if ( diff & GLS_DEPTHTEST_DISABLE )
	{
		if ( stateBits & GLS_DEPTHTEST_DISABLE )
		{
			qglDisable( GL_DEPTH_TEST );
		}
		else
		{
			qglEnable( GL_DEPTH_TEST );
		}
	}

	//
	// alpha test
	//
	if ( diff & GLS_ATEST_BITS )
	{
		uint32_t oldState = glState.glStateBits & GLS_ATEST_BITS;
		uint32_t newState = stateBits & GLS_ATEST_BITS;
		uint32_t storedState = glState.storedGlState & GLS_ATEST_BITS;

		if (oldState == 0)
		{
			qglEnable(GL_ALPHA_TEST);
		}
		else if (newState == 0)
		{
			qglDisable(GL_ALPHA_TEST);
		}

		if (newState != 0 && storedState != newState)
		{
			glState.storedGlState &= ~GLS_ATEST_BITS;
			glState.storedGlState |= newState;

			switch ( newState )
			{
			case GLS_ATEST_GT_0:
				qglAlphaFunc( GL_GREATER, 0.0f );
				break;
			case GLS_ATEST_LT_80:
				qglAlphaFunc( GL_LESS, 0.5f );
				break;
			case GLS_ATEST_GE_80:
				qglAlphaFunc( GL_GEQUAL, 0.5f );
				break;
			}
		}
	}

	glState.glStateBits = stateBits;
}
Example #21
0
void Sky_DepthClipEnd2 (void)
{
    // restore the correct depth func
    qglDepthFunc (GL_LEQUAL);
    qglDepthMask (1);
}
Example #22
0
/*
====================
GL_State

This routine is responsible for setting the most commonly changed state
====================
*/
void GL_State( int stateBits ) {
	int	diff;
	
	if ( !r_useStateCaching.GetBool() || backEnd.glState.forceGlState ) {
		// make sure everything is set all the time, so we
		// can see if our delta checking is screwing up
		diff = -1;
		backEnd.glState.forceGlState = false;
	} else {
		diff = stateBits ^ backEnd.glState.glStateBits;
		if ( !diff ) {
			return;
		}
	}

	//
	// check depthFunc bits
	//
	if ( diff & ( GLS_DEPTHFUNC_EQUAL | GLS_DEPTHFUNC_LESS | GLS_DEPTHFUNC_ALWAYS ) ) {
		if ( stateBits & GLS_DEPTHFUNC_EQUAL ) {
			qglDepthFunc( GL_EQUAL );
		} else if ( stateBits & GLS_DEPTHFUNC_ALWAYS ) {
			qglDepthFunc( GL_ALWAYS );
		} else {
			qglDepthFunc( GL_LEQUAL );
		}
	}


	//
	// check blend bits
	//
	if ( diff & ( GLS_SRCBLEND_BITS | GLS_DSTBLEND_BITS ) ) {
		GLenum srcFactor, dstFactor;

		switch ( stateBits & GLS_SRCBLEND_BITS ) {
		case GLS_SRCBLEND_ZERO:
			srcFactor = GL_ZERO;
			break;
		case GLS_SRCBLEND_ONE:
			srcFactor = GL_ONE;
			break;
		case GLS_SRCBLEND_DST_COLOR:
			srcFactor = GL_DST_COLOR;
			break;
		case GLS_SRCBLEND_ONE_MINUS_DST_COLOR:
			srcFactor = GL_ONE_MINUS_DST_COLOR;
			break;
		case GLS_SRCBLEND_SRC_ALPHA:
			srcFactor = GL_SRC_ALPHA;
			break;
		case GLS_SRCBLEND_ONE_MINUS_SRC_ALPHA:
			srcFactor = GL_ONE_MINUS_SRC_ALPHA;
			break;
		case GLS_SRCBLEND_DST_ALPHA:
			srcFactor = GL_DST_ALPHA;
			break;
		case GLS_SRCBLEND_ONE_MINUS_DST_ALPHA:
			srcFactor = GL_ONE_MINUS_DST_ALPHA;
			break;
		case GLS_SRCBLEND_ALPHA_SATURATE:
			srcFactor = GL_SRC_ALPHA_SATURATE;
			break;
		default:
			srcFactor = GL_ONE;		// to get warning to shut up
			common->Error( "GL_State: invalid src blend state bits\n" );
			break;
		}

		switch ( stateBits & GLS_DSTBLEND_BITS ) {
		case GLS_DSTBLEND_ZERO:
			dstFactor = GL_ZERO;
			break;
		case GLS_DSTBLEND_ONE:
			dstFactor = GL_ONE;
			break;
		case GLS_DSTBLEND_SRC_COLOR:
			dstFactor = GL_SRC_COLOR;
			break;
		case GLS_DSTBLEND_ONE_MINUS_SRC_COLOR:
			dstFactor = GL_ONE_MINUS_SRC_COLOR;
			break;
		case GLS_DSTBLEND_SRC_ALPHA:
			dstFactor = GL_SRC_ALPHA;
			break;
		case GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA:
			dstFactor = GL_ONE_MINUS_SRC_ALPHA;
			break;
		case GLS_DSTBLEND_DST_ALPHA:
			dstFactor = GL_DST_ALPHA;
			break;
		case GLS_DSTBLEND_ONE_MINUS_DST_ALPHA:
			dstFactor = GL_ONE_MINUS_DST_ALPHA;
			break;
		default:
			dstFactor = GL_ONE;		// to get warning to shut up
			common->Error( "GL_State: invalid dst blend state bits\n" );
			break;
		}

		qglBlendFunc( srcFactor, dstFactor );
	}

	//
	// check depthmask
	//
	if ( diff & GLS_DEPTHMASK ) {
		if ( stateBits & GLS_DEPTHMASK ) {
			qglDepthMask( GL_FALSE );
		} else {
			qglDepthMask( GL_TRUE );
		}
	}

	//
	// check colormask
	//
	if ( diff & (GLS_REDMASK|GLS_GREENMASK|GLS_BLUEMASK|GLS_ALPHAMASK) ) {
		GLboolean		r, g, b, a;
		r = ( stateBits & GLS_REDMASK ) ? 0 : 1;
		g = ( stateBits & GLS_GREENMASK ) ? 0 : 1;
		b = ( stateBits & GLS_BLUEMASK ) ? 0 : 1;
		a = ( stateBits & GLS_ALPHAMASK ) ? 0 : 1;
		qglColorMask( r, g, b, a );
	}

	//
	// fill/line mode
	//
	if ( diff & GLS_POLYMODE_LINE ) {
		if ( stateBits & GLS_POLYMODE_LINE ) {
			qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
		} else {
			qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
		}
	}

	//
	// alpha test
	//
	if ( diff & GLS_ATEST_BITS ) {
		switch ( stateBits & GLS_ATEST_BITS ) {
		case 0:
			qglDisable( GL_ALPHA_TEST );
			break;
		case GLS_ATEST_EQ_255:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_EQUAL, 1 );
			break;
		case GLS_ATEST_LT_128:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_LESS, 0.5 );
			break;
		case GLS_ATEST_GE_128:
			qglEnable( GL_ALPHA_TEST );
			qglAlphaFunc( GL_GEQUAL, 0.5 );
			break;
		default:
			assert( 0 );
			break;
		}
	}

	backEnd.glState.glStateBits = stateBits;
}
Example #23
0
void CCamWnd::Cam_Draw()
{
	brush_t	*brush;
	face_t	*face;
	float	screenaspect;
	float	yfov;
	double	start, end;
	int		i;

	/*
  FILE *f = fopen("g:/nardo/raduffy/editorhack.dat", "w");
  if (f != NULL) {
    fwrite(&m_Camera.origin[0], sizeof(float), 1, f);
    fwrite(&m_Camera.origin[1], sizeof(float), 1, f);
    fwrite(&m_Camera.origin[2], sizeof(float), 1, f);
		fwrite(&m_Camera.angles[PITCH], sizeof(float), 1, f);
		fwrite(&m_Camera.angles[YAW], sizeof(float), 1, f);
    fclose(f);
  }
	*/
	
	if (!active_brushes.next)
		return;	// not valid yet
	
	if (m_Camera.timing)
		start = Sys_DoubleTime ();
	
	//
	// clear
	//
	QE_CheckOpenGLForErrors();
	
	qglViewport(0, 0, m_Camera.width, m_Camera.height);
	qglScissor(0, 0, m_Camera.width, m_Camera.height);
	qglClearColor (g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][0],
		g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][1],
		g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][2], 0);
	qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	
	//
	// set up viewpoint
	//
	vec5_t lightPos;
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglEnable(GL_LIGHTING);
		//qglEnable(GL_LIGHT0);
		
		lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
		lightPos[3] = 1.0;
		qglLightModelfv(GL_LIGHT_MODEL_AMBIENT, lightPos);
		//qglLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
		//lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
    //qglLightfv(GL_LIGHT0, GL_AMBIENT, lightPos);
	}
	else
	{
		qglDisable(GL_LIGHTING);
	}
	
	qglMatrixMode(GL_PROJECTION);
	qglLoadIdentity ();
	
	screenaspect = (float)m_Camera.width / m_Camera.height;
	yfov = 2*atan((float)m_Camera.height / m_Camera.width)*180/Q_PI;
	qgluPerspective (yfov,  screenaspect,  2,  8192);
	
	qglRotatef (-90,  1, 0, 0);	    // put Z going up
	qglRotatef (90,  0, 0, 1);	    // put Z going up
	qglRotatef (m_Camera.angles[0],  0, 1, 0);
	qglRotatef (-m_Camera.angles[1],  0, 0, 1);
	qglTranslatef (-m_Camera.origin[0],  -m_Camera.origin[1],  -m_Camera.origin[2]);
	
	Cam_BuildMatrix ();
	
	
	//if (m_Camera.draw_mode == cd_light)
	//{
//	if (g_PrefsDlg.m_bGLLighting)
//	{
//		VectorCopy(m_Camera.origin, lightPos);
//		lightPos[3] = 1;
//		qglLightfv(GL_LIGHT0, GL_POSITION, lightPos);
//	}
	//}
	
	InitCull ();
	
	//
	// draw stuff
	//
	GLfloat lAmbient[] = {1.0, 1.0, 1.0, 1.0};
	
	switch (m_Camera.draw_mode)
	{
	case cd_wire:
		qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
		qglDisable(GL_TEXTURE_2D);
		qglDisable(GL_TEXTURE_1D);
		qglDisable(GL_BLEND);
		qglDisable(GL_DEPTH_TEST);
		qglColor3f(1.0, 1.0, 1.0);
		//		qglEnable (GL_LINE_SMOOTH);
		break;
		
	case cd_solid:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglDisable(GL_TEXTURE_2D);
		qglDisable(GL_BLEND);
		qglEnable(GL_DEPTH_TEST);
		qglDepthFunc (GL_LEQUAL);
		break;
		
	case cd_texture:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglEnable(GL_TEXTURE_2D);
		qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
		qglDisable(GL_BLEND);
		qglEnable(GL_DEPTH_TEST);
		qglDepthFunc (GL_LEQUAL);
		break;
		
	case cd_blend:
		qglCullFace(GL_FRONT);
		qglEnable(GL_CULL_FACE);
		qglShadeModel (GL_FLAT);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglEnable(GL_TEXTURE_2D);
		qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
		qglDisable(GL_DEPTH_TEST);
		qglEnable (GL_BLEND);
		qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		break;
	}
	
	qglMatrixMode(GL_TEXTURE);
	
	m_nNumTransBrushes = 0;
	
	for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
	{
		//DrawLightRadius(brush);
		
		if (CullBrush (brush))
			continue;
		
		if (FilterBrush (brush))
			continue;
		
		if ((brush->brush_faces->texdef.flags & (SURF_TRANS33 | SURF_TRANS66)) || (brush->brush_faces->d_texture->bFromShader && brush->brush_faces->d_texture->fTrans != 1.0))
		{
			m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
		} 
		else 
		{
			//--      if (brush->patchBrush)
			//--			  m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
			//--      else
			Brush_Draw(brush);
		}
		
		
	}
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglDisable (GL_LIGHTING);
	}
	
	//
	//qglDepthMask ( 0 ); // Don't write to depth buffer
	qglEnable ( GL_BLEND );
	qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	for ( i = 0; i < m_nNumTransBrushes; i++ ) 
		Brush_Draw (m_TransBrushes[i]);
	
	//qglDepthMask ( 1 ); // Ok, write now
	
	qglMatrixMode(GL_PROJECTION);
	
	//
	// now draw selected brushes
	//
	
	if (g_PrefsDlg.m_bGLLighting)
	{
		qglEnable (GL_LIGHTING);
	}
	
	qglTranslatef (g_qeglobals.d_select_translate[0], g_qeglobals.d_select_translate[1], g_qeglobals.d_select_translate[2]);
	qglMatrixMode(GL_TEXTURE);
	
	brush_t* pList = (g_bClipMode && g_pSplitList) ? g_pSplitList : &selected_brushes;
	// draw normally
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		//DrawLightRadius(brush);
		//if (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint)
		//  continue;
		
		Brush_Draw(brush);
	}
	
	// blend on top
	qglMatrixMode(GL_PROJECTION);
	
	
	qglDisable (GL_LIGHTING);
	qglColor4f(1.0, 0.0, 0.0, 0.3);
	qglEnable (GL_BLEND);
	qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
	qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	qglDisable (GL_TEXTURE_2D);
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		if ( (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) || 
			(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint) )
			continue;
		
		for (face=brush->brush_faces ; face ; face=face->next)
			Face_Draw( face );
	}
	
 
  int nCount = g_ptrSelectedFaces.GetSize();
	if (nCount > 0)
  {
    for (int i = 0; i < nCount; i++)
    {
      face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
		  Face_Draw(selFace);
    }
  }
		
	// non-zbuffered outline
	
	qglDisable (GL_BLEND);
	qglDisable (GL_DEPTH_TEST);
	qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
	qglColor3f (1, 1, 1);
	for (brush = pList->next ; brush != pList ; brush=brush->next)
	{
		if (g_qeglobals.dontDrawSelectedOutlines || (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) ||
			(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint))
			continue;
		
		for (face=brush->brush_faces ; face ; face=face->next)
			Face_Draw( face );
	}
	
	
	// edge / vertex flags
	
	if (g_qeglobals.d_select_mode == sel_vertex)
	{
		qglPointSize (4);
		qglColor3f (0,1,0);
		qglBegin (GL_POINTS);
		for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
			qglVertex3fv (g_qeglobals.d_points[i]);
		qglEnd ();
		qglPointSize (1);
	}
	else if (g_qeglobals.d_select_mode == sel_edge)
	{
		float	*v1, *v2;
		
		qglPointSize (4);
		qglColor3f (0,0,1);
		qglBegin (GL_POINTS);
		for (i=0 ; i<g_qeglobals.d_numedges ; i++)
		{
			v1 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p1];
			v2 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p2];
			qglVertex3f ( (v1[0]+v2[0])*0.5,(v1[1]+v2[1])*0.5,(v1[2]+v2[2])*0.5);
		}
		qglEnd ();
		qglPointSize (1);
	}
	
	
	g_splineList->draw(static_cast<qboolean>(g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint));
	if (g_qeglobals.selectObject && (g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint)) {
		g_qeglobals.selectObject->drawSelection();
	}

	//
	// draw pointfile
	//

	qglEnable(GL_DEPTH_TEST);
	

	DrawPathLines ();
	
	
	
	if (g_qeglobals.d_pointfile_display_list)
	{
		Pointfile_Draw();
		//		glCallList (g_qeglobals.d_pointfile_display_list);
	}
	
	// bind back to the default texture so that we don't have problems
	// elsewhere using/modifying texture maps between contexts
	qglBindTexture( GL_TEXTURE_2D, 0 );
	
#if 0
	// area selection hack
	if (g_qeglobals.d_select_mode == sel_area)
	{
		qglEnable (GL_BLEND);
		qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		qglColor4f(0.0, 0.0, 1.0, 0.25);
		qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
		qglRectfv(g_qeglobals.d_vAreaTL, g_qeglobals.d_vAreaBR);
		qglDisable (GL_BLEND);
	}
#endif
	
	qglFinish();
	QE_CheckOpenGLForErrors();
	//	Sys_EndWait();
	if (m_Camera.timing)
	{
		end = Sys_DoubleTime ();
		Sys_Printf ("Camera: %i ms\n", (int)(1000*(end-start)));
	}
}