int main( int argc, char *argv[] )
{
glutInit( &argc, argv );
glutInitWindowPosition( 200, 200 );
glutInitWindowSize( 800, 500 );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("World of Awesome");
glutReshapeFunc( ReshapeGL );
glutDisplayFunc( Draw );
glutKeyboardFunc( keyboard );
glutMouseFunc( mouse );
glutMotionFunc( mouseMove );
glutPassiveMotionFunc( passiveMove );
glutTimerFunc(TIMER_DELAY, tock, 0);
g_width = g_height = 200;
#ifdef _WIN32
GLenum err = glewInit();
if (GLEW_OK != err)
{
std::cerr << "Error initializing glew! " << glewGetErrorString(err) << std::endl;
return 1;
}
#endif
#ifdef __APPLE__
glutSetCursor(GLUT_CURSOR_NONE);
#endif
backShade = glm::vec3(0.2,0.5,0.9);
Initialize();
//test the openGL version
getGLversion();
//install the shader
if (!InstallShader(textFileRead((char *)"shaders/vert.glsl"), textFileRead((char *)"shaders/frag.glsl"))) {
printf("Error installing shader!\n");
return 0;
}
InitGeom();
g_shadeType = PHONG;
g_pitch = 0;
g_yaw = M_PI / 2;
float tx = cos(g_pitch)*cos(g_yaw);
float ty = sin(g_pitch);
float tz = cos(g_pitch)*cos(M_PI/2 - g_yaw);
eye = glm::vec3(0, 2.5, 0);
target = eye + glm::vec3(tx, ty, tz);
sunDir = normalize(vec3(-0.2, -1.0, 0.0));
sunShade = glm::vec3(1.0, 1.0, 0.9);
glutMainLoop();
return 0;
}
int main(int argc, char** argv)
{
glutInit( &argc, argv );
glutInitWindowPosition( 20, 20 );
glutInitWindowSize( 500, 500 );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("Lab 1 - Procedural Motion");
//test the openGL version
getGLversion();
init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc(keyboard);
glutMainLoop();
return 0;
}
int main( int argc, char *argv[] )
{
glutInit( &argc, argv );
glutInitWindowPosition( 20, 20 );
glutInitWindowSize( 400, 400 );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow("My first triangle");
glutReshapeFunc( ReshapeGL );
glutDisplayFunc( Draw );
Initialize();
//test the openGL version
getGLversion();
//install the shader
if (!InstallShader(textFileRead((char *)"GLSL_Lab1.glsl"))) {
printf("Error installing shader!\n");
return 0;
}
InitGeom();
glutMainLoop();
return 0;
}
int setup(void)
{
GLuint major, minor;
GLint success;
GLuint model_id;
srand( (unsigned)time( NULL ) );
// Make sure required functionality is available!
if (!getGLversion( &major, &minor))
return -1;
if (major < 2)
{
printf("<!> OpenGL 2.0 or higher is required\n");
return -1;
}
windowpos = IsExtSupported("GL_ARB_window_pos");
// Make sure required functionality is available!
if (!(IsExtSupported("GL_ARB_vertex_program")))
{
printf("<!> ARB vertex program extension not supported\n");
return -1;
}
if (!(IsExtSupported("GL_ARB_fragment_program")))
{
printf("<!> ARB fragment program extension not supported\n");
return -1;
}
if (!(IsExtSupported("GL_ARB_vertex_shader")))
{
printf("<!> ARB vertex shader extension not supported\n");
return -1;
}
if (!(IsExtSupported("GL_ARB_fragment_shader")))
{
printf("<!> ARB fragment shader extension not supported\n");
return -1;
}
if (!(IsExtSupported("GL_EXT_framebuffer_object")))
{
printf("<!> Framebuffer object extension not supported\n");
return -1;
}
//Define extension prointers
glGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)glXGetProcAddressARB("glGenFramebuffersEXT");
glBindFramebufferEXT = (PFNGLBINDFRAMEBUFFEREXTPROC)glXGetProcAddressARB("glBindFramebufferEXT");
glFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)glXGetProcAddressARB("glFramebufferTexture2DEXT");
glGenRenderbuffersEXT = (PFNGLGENRENDERBUFFERSEXTPROC)glXGetProcAddressARB("glGenRenderbuffersEXT");
glBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)glXGetProcAddressARB("glBindRenderbufferEXT");
glRenderbufferStorageEXT = (PFNGLRENDERBUFFERSTORAGEEXTPROC)glXGetProcAddressARB("glRenderbufferStorageEXT");
glFramebufferRenderbufferEXT = (PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC)glXGetProcAddressARB("glFramebufferRenderbufferEXT");
glDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)glXGetProcAddressARB("glDeleteFramebuffersEXT");
glDeleteRenderbuffersEXT = (PFNGLDELETERENDERBUFFERSEXTPROC)glXGetProcAddressARB("glDeleteRenderbuffersEXT");
glCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)glXGetProcAddressARB("glCheckFramebufferStatusEXT");
if ( !glGenFramebuffersEXT || !glBindFramebufferEXT ||
!glFramebufferTexture2DEXT || !glGenRenderbuffersEXT ||
!glBindRenderbufferEXT || !glRenderbufferStorageEXT ||
!glFramebufferRenderbufferEXT || !glDeleteFramebuffersEXT ||
!glDeleteRenderbuffersEXT || !glCheckFramebufferStatusEXT )
{
printf("<!> Required extension not supported\n");
return -1;
}
//Enable smooth shading
glShadeModel(GL_SMOOTH);
//Enable depth testing
glEnable(GL_DEPTH_TEST);
glPolygonOffset( scalePoly, biasPoly );
//Enable backface culling
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glFrontFace( GL_CW );
//Background color (Ligth blue)
glClearColor(0.0f, 0.4f, 0.8f, 1.0f);
//Generate texture objects
texture_id = (GLuint *)malloc( NUM_TEXTURES * sizeof(GLuint) );
glGenTextures( NUM_TEXTURES, texture_id );
// Enable Anisotropic filtering (for 2D textures only)
if( enable_anisotropic )
{
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &MaxAnisoLevel);
if( AnisoLevel > MaxAnisoLevel)
AnisoLevel = MaxAnisoLevel;
if( print_info )
printf("<-> %.0fX anisotropic filtering enabled\n", AnisoLevel);
}
else
AnisoLevel = 0.0f;
// Enable FSAA
if (enable_fsaa)
glEnable(GL_MULTISAMPLE);
//Load MD2 models and textures
for (model_id = 0; model_id < NUM_MODELS; ++model_id)
{
// Load the .md2 model
if ( (md2_model[model_id] = (MD2_MODEL_PTR)malloc(sizeof(MD2_MODEL))) == NULL)
{
printf("<!> Unable to allocate memory for MD2 model in %s\n", filename[3*model_id]);
return -1;
}
if ( !LoadMD2(md2_model[model_id], filename[3*model_id]) )
{
printf("<!> Unable to load MD2 model from %s\n", filename[3*model_id]);
return -1;
}
if( print_info )
printf("<-> Loaded MD2 model from \"%s\" for model #%d\n", filename[3*model_id], model_id);
// Load texture from disk
if ( !LoadImageFromDisk(md2_model[model_id]->skin, filename[3*model_id+1]) )
{
printf("<!> Unable to load texture from %s \n", filename[3*model_id+1]);
return -1;
}
if( print_info )
printf("<-> Loaded texture from \"%s\" for model #%d\n", filename[3*model_id+1], model_id);
//Set up model texture parameters
glBindTexture(GL_TEXTURE_2D, texture_id[2*model_id]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D( GL_TEXTURE_2D, 0, md2_model[model_id]->skin->components,
md2_model[model_id]->skin->width, md2_model[model_id]->skin->height,
0, md2_model[model_id]->skin->format, GL_UNSIGNED_BYTE,
md2_model[model_id]->skin->data);
// Load normal from disk
if ( !LoadImageFromDisk(md2_model[model_id]->normal, filename[3*model_id+2]) )
{
printf("<!> Unable to load texture from %s \n", filename[3*model_id+2]);
return -1;
}
if( print_info )
printf("<-> Loaded texture from \"%s\" for model #%d\n", filename[3*model_id+2], model_id);
//Set up model texture parameters
glBindTexture(GL_TEXTURE_2D, texture_id[2*model_id+1]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D( GL_TEXTURE_2D, 0, md2_model[model_id]->normal->components,
md2_model[model_id]->normal->width, md2_model[model_id]->normal->height,
0, md2_model[model_id]->normal->format, GL_UNSIGNED_BYTE,
md2_model[model_id]->normal->data);
}
// Load floor texture from disk
floor_texture = (IMAGE_PTR)malloc(sizeof(IMAGE));
floor_texture->data = NULL;
if ( !LoadImageFromDisk(floor_texture, filename[3*NUM_MODELS]) )
{
printf("<!> Unable to load texture from %s\n", filename[3*NUM_MODELS]);
return -1;
}
if( print_info )
printf("<-> Loaded texture from \"%s\"\n", filename[3*NUM_MODELS]);
//Set up floor texture parameters
glBindTexture(GL_TEXTURE_2D, texture_id[NUM_TEXTURES-2]);
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_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
if (enable_anisotropic)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, AnisoLevel);
glTexImage2D( GL_TEXTURE_2D, 0, floor_texture->components,
floor_texture->width, floor_texture->height,
0, floor_texture->format, GL_UNSIGNED_BYTE,
floor_texture->data);
if (floor_texture->data)
{
free(floor_texture->data);
floor_texture->data = NULL;
}
// Load floor normal map from disk
floor_texture = (IMAGE_PTR)malloc(sizeof(IMAGE));
floor_texture->data = NULL;
if ( !LoadImageFromDisk(floor_texture, filename[3*NUM_MODELS+1]) )
{
printf("<!> Unable to load texture from %s\n", filename[3*NUM_MODELS+1]);
return -1;
}
if( print_info )
printf("<-> Loaded texture from \"%s\"\n", filename[3*NUM_MODELS+1]);
//Set up floor texture parameters
glBindTexture(GL_TEXTURE_2D, texture_id[NUM_TEXTURES-1]);
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_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
if (enable_anisotropic)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, AnisoLevel);
glTexImage2D( GL_TEXTURE_2D, 0, floor_texture->components,
floor_texture->width, floor_texture->height,
0, floor_texture->format, GL_UNSIGNED_BYTE,
floor_texture->data);
if (floor_texture->data)
{
free(floor_texture->data);
floor_texture->data = NULL;
}
// Load and compile low-level shaders
glGenProgramsARB(NUM_SHADERS, ids);
if (!CompileShader(GL_VERTEX_PROGRAM_ARB, ids[0], DATA_DIR "data/shaders/light.vp"))
return -1;
if (!CompileShader(GL_FRAGMENT_PROGRAM_ARB, ids[1], DATA_DIR "data/shaders/lightMasked.fp"))
return -1;
// Create program object and compile GLSL shaders
progObj = glCreateProgramObjectARB();
if (!CompileGLSLshaders(&progObj,
DATA_DIR "data/shaders/bumpTBN_SH_VP.glsl",
DATA_DIR "data/shaders/bumpTBN_SH_FP.glsl", GL_FALSE))
return -1;
// Retrieve uniform and attributes locations
glUseProgramObjectARB(progObj);
colorMap = glGetUniformLocationARB(progObj, "colorMap");
bumpMap = glGetUniformLocationARB(progObj, "bumpMap");
shadowMap = glGetUniformLocationARB(progObj, "shadowMap");
tangent = glGetAttribLocation(progObj, "tangent");
binormal = glGetAttribLocation(progObj, "binormal");
for (model_id = 0; model_id < NUM_MODELS; ++model_id)
{
md2_model[model_id]->tangent = tangent;
md2_model[model_id]->binormal = binormal;
}
// Set texture units
glUniform1i( colorMap, 0 );
glUniform1i( bumpMap, 1 );
glUniform1i( shadowMap, 2 );
//Validate shaders
glValidateProgramARB(progObj);
glGetObjectParameterivARB(progObj, GL_OBJECT_VALIDATE_STATUS_ARB, &success);
if (!success)
{
GLbyte infoLog[MAX_INFO_LOG_SIZE];
glGetInfoLogARB(progObj, MAX_INFO_LOG_SIZE, NULL, (char *)infoLog);
printf("<!> Error in program validation\n");
printf("Info log: %s\n", infoLog);
return -1;
}
//Disable GLSL and enable low-level shaders
glUseProgramObjectARB(0);
glEnable(GL_VERTEX_PROGRAM_ARB);
glEnable(GL_FRAGMENT_PROGRAM_ARB);
glBindProgramARB(GL_VERTEX_PROGRAM_ARB, ids[0]);
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ids[1]);
// Create FrameBuffer
if (!CreateFB( shadow_sz, &FBO, &shadow_tx ))
return -1;
//Prebuild the display lists
FList = glGenLists(1);
glNewList(FList, GL_COMPILE);
DrawGround();
glEndList();
//Init animations and kinematic state
md2_model[0]->anim_state = ANIMATION_RUN;
md2_model[0]->anim_command = ANIMATION_START;
md2_model[0]->delta_rate = 30.f;
md2_model[0]->position.x = 85.f;
md2_model[0]->position.z = 0.f;
md2_model[0]->rotation = 90.f;
md2_model[1]->anim_state = ANIMATION_RUN;
md2_model[1]->anim_command = ANIMATION_START;
md2_model[1]->delta_rate = 30.f;
md2_model[1]->position.x = 85.f;
md2_model[1]->position.z = 0.f;
md2_model[1]->rotation = 90.f;
md2_model[2]->anim_state = ANIMATION_STANDING_IDLE;
md2_model[2]->anim_command = ANIMATION_START;
// Set initial camera position and orientation
xCam = 0.0f;
yCam = 70.0f;
zCam = 200.0f;
eCam = -0.35f;
aCam = 0.0f;
lCam = 0.0f;
vCam = 0.0f;
dCam = 0.0f;
//Set initial light
aLit = 0.0f;
eLit = 0.75f;
// Initialise timer
gettimeofday(&tv, NULL);
t0 = (double)tv.tv_sec + tv.tv_usec / 1000000.0f;
t1 = t0;
t2 = t0;
return 0;
}
