Example #1
0
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);
	}
}
Example #2
0
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));
}