void Demo::Init(const Options* options) {
glGenTextures(1, &mColTex);
glBindTexture(GL_TEXTURE_2D, mColTex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, WindowWidth, WindowHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glGenTextures(1, &mDepthTex);
glBindTexture(GL_TEXTURE_2D, mDepthTex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, WindowWidth, WindowHeight, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
glGenFramebuffers(1, &mFramebuffer);
glBindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mColTex, 0);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, mDepthTex, 0);
ASSERT(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE);
glFrontFace(GL_CW);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
mEffect.Create();
mEffect.FromByteFile(std::string(options->fragmentFile));
mEffect.FromByteFile(std::string(options->vertexFile));
mEffect.Link();
gWorld = Matrix4::identity();
Point3 Eye( 0.0f, 0.0f, -800 );
Point3 At( 0.0f, 0.0f, 0.0f );
Vector3 Up( 0.0f, 1.0f, 0.0f );
gView = Matrix4::lookAt(Eye, At, Up);
ResizeDisplay(WindowWidth, WindowHeight);
gModel.Import3DFromFile("models/Tiny.x");
mPostFXEnabled = false;
if(options->postprocessFile)
{
mPostFXEnabled = true;
mPostProcessEffect.Create();
mPostProcessEffect.FromByteFile(std::string(options->postprocessFile));
mPostProcessEffect.FromByteFile(std::string("shaders/generic/templatePostFXVS.o"));
mPostProcessEffect.Link();
glGenVertexArrays(1, &mPostFXVAO);
glBindVertexArray(mPostFXVAO);
//Vertex setup for post-process quad
uint32_t indices[] =
{
1, 0, 3,
2, 3, 0
};
glGenBuffers(1, &mPostFXIndexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mPostFXIndexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(uint32_t) * 6,
indices, GL_STATIC_DRAW);
PostProcessVertex vertices[] =
{
{-1, -1, 0},
{1, -1, 0},
{-1, 1, 0},
{1, 1, 0}
};
glGenBuffers(1, &mPostFXVertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, mPostFXVertexBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(PostProcessVertex) * 4,
vertices, GL_STATIC_DRAW);
}
mComputeEnabled = false;
if(options->computeFile)
{
mComputeEnabled = true;
mCompute.Create();
mCompute.SetLanguage(LANG_430);
mCompute.FromByteFile(std::string(options->computeFile));
mCompute.Link();
gModel.GetMaterial().BindForLoadStore(GL_WRITE_ONLY);
}
}
void Init(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glewInit();
glutInitContextVersion (4, 0);
#ifdef _DEBUG
glutInitContextFlags (GLUT_DEBUG);
#endif
glutInitWindowSize (WindowWidth, WindowHeight);
glutInitWindowPosition (50, 50);
glutCreateWindow (argv[0]);
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutKeyboardFunc (keyboard);
glutIdleFunc(display);
glewInit();
#ifdef _DEBUG
SetupOpenGLDebugCallback();
#endif
glClearColor(0.0f, 0.125f, 0.3f, 1.0f);
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
mTessEffect.Create();
mTessEffect.SetLanguage(LANG_400);
mTessEffect.AddCompileFlags(HLSLCC_FLAG_TESS_ENABLED);
mTessEffect.FromByteFile(std::string("shaders/tessellationPS.o"));
mTessEffect.FromByteFile(std::string("shaders/tessellationVS.o"));
mTessEffect.FromByteFile(std::string("shaders/tessellationHS.o"));
mTessEffect.FromByteFile(std::string("shaders/tessellationDS.o"));
gWorld = Matrix4::identity();
Point3 Eye( 0.0f, 4.0f, -10.0f );
Point3 At( 0.0f, 1.0f, 0.0f );
Vector3 Up( 0.0f, 1.0f, 0.0f );
gView = Matrix4::lookAt(Eye, At, Up);
gProjection = Matrix4::perspective(3.14159f * 0.25f, WindowWidth / ( float )WindowHeight, 0.1f, 100.0f);
uint32_t indices[] =
{
0, 1, 2, 3,
4, 5, 6, 7,
8, 9, 10, 11,
12, 13, 14, 15,
16, 17, 18, 19,
20, 21, 22, 23,
};
glGenBuffers(1, &gIndexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, gIndexBuffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(uint32_t) * 24,
indices, GL_STATIC_DRAW);
SimpleVertex vertices[] =
{
{ { -1.0f, 1.0f, -1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { 1.0f, 1.0f, -1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { 1.0f, 1.0f, 1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { -1.0f, 1.0f, 1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { -1.0f, -1.0f, -1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { 1.0f, -1.0f, -1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { 1.0f, -1.0f, 1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { -1.0f, -1.0f, 1.0f }, { 0.0f, 1.0f, 0.0f } },
{ { -1.0f, -1.0f, 1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { -1.0f, -1.0f, -1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { -1.0f, 1.0f, -1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { -1.0f, 1.0f, 1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { 1.0f, -1.0f, 1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { 1.0f, -1.0f, -1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { 1.0f, 1.0f, -1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { 1.0f, 1.0f, 1.0f }, { 1.0f, 0.0f, 0.0f } },
{ { -1.0f, -1.0f, -1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { 1.0f, -1.0f, -1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { 1.0f, 1.0f, -1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { -1.0f, 1.0f, -1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { -1.0f, -1.0f, 1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { 1.0f, -1.0f, 1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { 1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 1.0f } },
{ { -1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 1.0f } },
};
glGenBuffers(1, &gVertexBuffer);
glBindBuffer(GL_ARRAY_BUFFER, gVertexBuffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(SimpleVertex) * 24,
vertices, GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(SimpleVertex), 0);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(SimpleVertex), (void*)(sizeof(float)*3));
}