//////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering
// context. Here it sets up and initializes the texture objects.
void SetupRC()
{
GLbyte *pBytes;
GLint iWidth, iHeight, iComponents;
GLenum eFormat;
GLint iLoop;
// Black background
glClearColor(0.0f, 0.0f, 0.0f,1.0f);
shaderManager.InitializeStockShaders();
// Load textures
glGenTextures(TEXTURE_COUNT, textures);
for(iLoop = 0; iLoop < TEXTURE_COUNT; iLoop++)
{
// Bind to next texture object
glBindTexture(GL_TEXTURE_2D, textures[iLoop]);
// Load texture, set filter and wrap modes
pBytes = gltReadTGABits(szTextureFiles[iLoop],&iWidth, &iHeight,
&iComponents, &eFormat);
// Load texture, set filter and wrap modes
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, iComponents, iWidth, iHeight, 0, eFormat, GL_UNSIGNED_BYTE, pBytes);
glGenerateMipmap(GL_TEXTURE_2D);
// Don't need original texture data any more
free(pBytes);
}
// Build Geometry
GLfloat z;
floorBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for(z = 60.0f; z >= 0.0f; z -=10.0f)
{
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Vertex3f(-10.0f, -10.0f, z);
floorBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
floorBatch.Vertex3f(10.0f, -10.0f, z);
floorBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
floorBatch.Vertex3f(-10.0f, -10.0f, z - 10.0f);
floorBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
floorBatch.Vertex3f(10.0f, -10.0f, z - 10.0f);
}
floorBatch.End();
ceilingBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for(z = 60.0f; z >= 0.0f; z -=10.0f)
{
ceilingBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
ceilingBatch.Vertex3f(-10.0f, 10.0f, z - 10.0f);
ceilingBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
ceilingBatch.Vertex3f(10.0f, 10.0f, z - 10.0f);
ceilingBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
ceilingBatch.Vertex3f(-10.0f, 10.0f, z);
ceilingBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
ceilingBatch.Vertex3f(10.0f, 10.0f, z);
}
ceilingBatch.End();
leftWallBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for(z = 60.0f; z >= 0.0f; z -=10.0f)
{
leftWallBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
leftWallBatch.Vertex3f(-10.0f, -10.0f, z);
leftWallBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
leftWallBatch.Vertex3f(-10.0f, 10.0f, z);
leftWallBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
leftWallBatch.Vertex3f(-10.0f, -10.0f, z - 10.0f);
leftWallBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
leftWallBatch.Vertex3f(-10.0f, 10.0f, z - 10.0f);
}
leftWallBatch.End();
rightWallBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for(z = 60.0f; z >= 0.0f; z -=10.0f)
{
rightWallBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
rightWallBatch.Vertex3f(10.0f, -10.0f, z);
rightWallBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
rightWallBatch.Vertex3f(10.0f, 10.0f, z);
rightWallBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
rightWallBatch.Vertex3f(10.0f, -10.0f, z - 10.0f);
rightWallBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
rightWallBatch.Vertex3f(10.0f, 10.0f, z - 10.0f);
}
rightWallBatch.End();
}
///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
GLbyte *pBytes;
GLint nWidth, nHeight, nComponents;
GLenum format;
shaderManager.InitializeStockShaders();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
glEnable(GL_DEPTH_TEST);
glLineWidth(2.5f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);
cameraFrame.MoveForward(-15.0f);
cameraFrame.MoveUp(6.0f);
cameraFrame.RotateLocalX(float(m3dDegToRad(20.0f)));
MakeCube(cubeBatch);
MakeFloor(floorBatch);
// Make top
topBlock.Begin(GL_TRIANGLE_FAN, 4, 1);
topBlock.Normal3f(0.0f, 1.0f, 0.0f);
topBlock.MultiTexCoord2f(0, 0.0f, 0.0f);
topBlock.Vertex3f(-1.0f, 1.0f, 1.0f);
topBlock.Normal3f(0.0f, 1.0f, 0.0f);
topBlock.MultiTexCoord2f(0, 1.0f, 0.0f);
topBlock.Vertex3f(1.0f, 1.0f, 1.0f);
topBlock.Normal3f(0.0f, 1.0f, 0.0f);
topBlock.MultiTexCoord2f(0, 1.0f, 1.0f);
topBlock.Vertex3f(1.0f, 1.0f, -1.0f);
topBlock.Normal3f(0.0f, 1.0f, 0.0f);
topBlock.MultiTexCoord2f(0, 0.0f, 1.0f);
topBlock.Vertex3f(-1.0f, 1.0f, -1.0f);
topBlock.End();
// Make Front
frontBlock.Begin(GL_TRIANGLE_FAN, 4, 1);
frontBlock.Normal3f(0.0f, 0.0f, 1.0f);
frontBlock.MultiTexCoord2f(0, 0.0f, 0.0f);
frontBlock.Vertex3f(-1.0f, -1.0f, 1.0f);
frontBlock.Normal3f(0.0f, 0.0f, 1.0f);
frontBlock.MultiTexCoord2f(0, 1.0f, 0.0f);
frontBlock.Vertex3f(1.0f, -1.0f, 1.0f);
frontBlock.Normal3f(0.0f, 0.0f, 1.0f);
frontBlock.MultiTexCoord2f(0, 1.0f, 1.0f);
frontBlock.Vertex3f(1.0f, 1.0f, 1.0f);
frontBlock.Normal3f(0.0f, 0.0f, 1.0f);
frontBlock.MultiTexCoord2f(0, 0.0f, 1.0f);
frontBlock.Vertex3f(-1.0f, 1.0f, 1.0f);
frontBlock.End();
// Make left
leftBlock.Begin(GL_TRIANGLE_FAN, 4, 1);
leftBlock.Normal3f(-1.0f, 0.0f, 0.0f);
leftBlock.MultiTexCoord2f(0, 0.0f, 0.0f);
leftBlock.Vertex3f(-1.0f, -1.0f, -1.0f);
leftBlock.Normal3f(-1.0f, 0.0f, 0.0f);
leftBlock.MultiTexCoord2f(0, 1.0f, 0.0f);
leftBlock.Vertex3f(-1.0f, -1.0f, 1.0f);
leftBlock.Normal3f(-1.0f, 0.0f, 0.0f);
leftBlock.MultiTexCoord2f(0, 1.0f, 1.0f);
leftBlock.Vertex3f(-1.0f, 1.0f, 1.0f);
leftBlock.Normal3f(-1.0f, 0.0f, 0.0f);
leftBlock.MultiTexCoord2f(0, 0.0f, 1.0f);
leftBlock.Vertex3f(-1.0f, 1.0f, -1.0f);
leftBlock.End();
// Create shadow projection matrix
GLfloat floorPlane[] = { 0.0f, 1.0f, 0.0f, 1.0f};
m3dMakePlanarShadowMatrix(shadowMatrix, floorPlane, vLightPos);
// Load up four textures
glGenTextures(4, textures);
// Wood floor
pBytes = gltReadTGABits("floor.tga", &nWidth, &nHeight, &nComponents, &format);
glBindTexture(GL_TEXTURE_2D, textures[0]);
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_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(GL_TEXTURE_2D,0,nComponents,nWidth, nHeight, 0,
format, GL_UNSIGNED_BYTE, pBytes);
free(pBytes);
// One of the block faces
pBytes = gltReadTGABits("Block4.tga", &nWidth, &nHeight, &nComponents, &format);
glBindTexture(GL_TEXTURE_2D, textures[1]);
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_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(GL_TEXTURE_2D,0,nComponents,nWidth, nHeight, 0,
format, GL_UNSIGNED_BYTE, pBytes);
free(pBytes);
// Another block face
pBytes = gltReadTGABits("block5.tga", &nWidth, &nHeight, &nComponents, &format);
glBindTexture(GL_TEXTURE_2D, textures[2]);
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_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(GL_TEXTURE_2D,0,nComponents,nWidth, nHeight, 0,
format, GL_UNSIGNED_BYTE, pBytes);
free(pBytes);
// Yet another block face
pBytes = gltReadTGABits("block6.tga", &nWidth, &nHeight, &nComponents, &format);
glBindTexture(GL_TEXTURE_2D, textures[3]);
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_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexImage2D(GL_TEXTURE_2D,0,nComponents,nWidth, nHeight, 0,
format, GL_UNSIGNED_BYTE, pBytes);
free(pBytes);
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
// Black background
glClearColor(0.0f, 0.0f, 0.75f, 1.0f );
// glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
shaderManager.InitializeStockShaders();
tubeBatch.Begin(GL_QUADS, 200);
float fZ = 100.0f;
float bZ = -100.0f;
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, 100.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f,50.0f,fZ);
// Right Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f,-50.0f,fZ);
// Top Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f,fZ);
// Bottom Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -35.0f,fZ);
// Top length section ////////////////////////////
// Normal points up Y axis
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f,50.0f,bZ);
// Bottom section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, fZ);
// Left section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, bZ);
// Right Section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
// Pointing straight out Z
// Left Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f,50.0f,fZ);
// Right Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f,-50.0f,fZ);
// Top Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f,fZ);
// Bottom Panel
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -35.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -35.0f,fZ);
// Top length section ////////////////////////////
// Normal points up Y axis
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, 1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f,50.0f,bZ);
// Bottom section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(0.0f, -1.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, fZ);
// Left section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, bZ);
// Right Section
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, fZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, bZ);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Normal3f(-1.0f, 0.0f, 0.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, fZ);
// Left Panel
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f,50.0f,bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, -50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-50.0f, 50.0f, bZ);
// Right Panel
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f,-50.0f,bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(50.0f, 50.0f, bZ);
// Top Panel
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, 35.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 35.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, 50.0f, bZ);
// Bottom Panel
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -35.0f,bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(35.0f, -50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -50.0f, bZ);
tubeBatch.Normal3f(0.0f, 0.0f, -1.0f);
tubeBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
tubeBatch.Vertex3f(-35.0f, -35.0f, bZ);
tubeBatch.End();
innerBatch.Begin(GL_QUADS, 40);
// Insides /////////////////////////////
// Normal points up Y axis
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, 35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(35.0f, 35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(35.0f, 35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(-35.0f,35.0f,bZ);
// Bottom section
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, -35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, -35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(35.0f, -35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(0.0f, 1.0f, 0.0f);
innerBatch.Vertex3f(35.0f, -35.0f, fZ);
// Left section
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, 35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, 35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, -35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(-35.0f, -35.0f, fZ);
// Right Section
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(-1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(35.0f, 35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(-1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(35.0f, -35.0f, fZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(-1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(35.0f, -35.0f, bZ);
innerBatch.Color4f(0.75f, 0.75f, 0.75f, 1.0f);
innerBatch.Normal3f(-1.0f, 0.0f, 0.0f);
innerBatch.Vertex3f(35.0f, 35.0f, bZ);
innerBatch.End();
}
///////////////////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering context.
// This is the first opportunity to do any OpenGL related tasks.
void SetupRC()
{
// Black background
glClearColor(0.7f, 0.7f, 0.7f, 1.0f );
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);
cameraFrame.MoveForward(-15.0f);
//////////////////////////////////////////////////////////////////////
// Some points, more or less in the shape of Florida
GLfloat vCoast[24][3] = {{2.80, 1.20, 0.0 }, {2.0, 1.20, 0.0 },
{2.0, 1.08, 0.0 }, {2.0, 1.08, 0.0 },
{0.0, 0.80, 0.0 }, {-.32, 0.40, 0.0 },
{-.48, 0.2, 0.0 }, {-.40, 0.0, 0.0 },
{-.60, -.40, 0.0 }, {-.80, -.80, 0.0 },
{-.80, -1.4, 0.0 }, {-.40, -1.60, 0.0 },
{0.0, -1.20, 0.0 }, { .2, -.80, 0.0 },
{.48, -.40, 0.0 }, {.52, -.20, 0.0 },
{.48, .20, 0.0 }, {.80, .40, 0.0 },
{1.20, .80, 0.0 }, {1.60, .60, 0.0 },
{2.0, .60, 0.0 }, {2.2, .80, 0.0 },
{2.40, 1.0, 0.0 }, {2.80, 1.0, 0.0 }};
// Load point batch
pointBatch.Begin(GL_POINTS, 24);
pointBatch.CopyVertexData3f(vCoast);
pointBatch.End();
// Load as a bunch of line segments
lineBatch.Begin(GL_LINES, 24);
lineBatch.CopyVertexData3f(vCoast);
lineBatch.End();
// Load as a single line segment
lineStripBatch.Begin(GL_LINE_STRIP, 24);
lineStripBatch.CopyVertexData3f(vCoast);
lineStripBatch.End();
// Single line, connect first and last points
lineLoopBatch.Begin(GL_LINE_LOOP, 24);
lineLoopBatch.CopyVertexData3f(vCoast);
lineLoopBatch.End();
// For Triangles, we'll make a Pyramid
GLfloat vPyramid[12][3] = { -2.0f, 0.0f, -2.0f,
2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, -2.0f,
2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
-2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f};
triangleBatch.Begin(GL_TRIANGLES, 12);
triangleBatch.CopyVertexData3f(vPyramid);
triangleBatch.End();
// For a Triangle fan, just a 6 sided hex. Raise the center up a bit
GLfloat vPoints[100][3]; // Scratch array, more than we need
int nVerts = 0;
GLfloat r = 3.0f;
vPoints[nVerts][0] = 0.0f;
vPoints[nVerts][1] = 0.0f;
vPoints[nVerts][2] = 0.0f;
for(GLfloat angle = 0; angle < M3D_2PI; angle += M3D_2PI / 6.0f) {
nVerts++;
vPoints[nVerts][0] = float(cos(angle)) * r;
vPoints[nVerts][1] = float(sin(angle)) * r;
vPoints[nVerts][2] = -0.5f;
}
// Close the fan
nVerts++;
vPoints[nVerts][0] = r;
vPoints[nVerts][1] = 0;
vPoints[nVerts][2] = 0.0f;
// Load it up
triangleFanBatch.Begin(GL_TRIANGLE_FAN, 8);
triangleFanBatch.CopyVertexData3f(vPoints);
triangleFanBatch.End();
// For triangle strips, a little ring or cylinder segment
int iCounter = 0;
GLfloat radius = 3.0f;
for(GLfloat angle = 0.0f; angle <= (2.0f*M3D_PI); angle += 0.3f)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
// Specify the point and move the Z value up a little
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = 0.5;
iCounter++;
}
// Close up the loop
vPoints[iCounter][0] = vPoints[0][0];
vPoints[iCounter][1] = vPoints[0][1];
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = vPoints[1][0];
vPoints[iCounter][1] = vPoints[1][1];
vPoints[iCounter][2] = 0.5;
iCounter++;
// Load the triangle strip
triangleStripBatch.Begin(GL_TRIANGLE_STRIP, iCounter);
triangleStripBatch.CopyVertexData3f(vPoints);
triangleStripBatch.End();
}
void SetupRC(void)
{
shaderManager.InitializeStockShaders();
glGenTextures(TEXTURE_COUNT, uiTextures);
GLbyte *pBits;
int nWidth, nHeight, nComponents;
GLenum eFormat;
for (size_t i = 0; i < TEXTURE_COUNT; ++i)
{
glBindTexture(GL_TEXTURE_2D, uiTextures[i]);
// Read the texture bits
pBits = gltReadTGABits(uiTextureName[i], &nWidth, &nHeight, &nComponents, &eFormat);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, nComponents, nWidth, nHeight, 0, eFormat, GL_UNSIGNED_BYTE, pBits);
glGenerateMipmap(GL_TEXTURE_2D);
free(pBits);
}
glClearColor(0.0f,0.0f,0.0f,1.0f);
GLfloat z;
floorBatch.Begin(GL_TRIANGLE_STRIP, 28,1);
for (z = 60.f; z >= 0.0f; z -= 10.0f)
{
floorBatch.Normal3f(0.0f, 1.0f, 0.0f);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Vertex3f(-10.0f, -10.0f, z);
floorBatch.Normal3f(0.0f, 1.0f, 0.0f);
floorBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
floorBatch.Vertex3f(10.0f, -10.0f, z);
floorBatch.Normal3f(0.0f, 1.0f, 0.0f);
floorBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
floorBatch.Vertex3f(-10.0f, -10.0f, z - 10.0f);
floorBatch.Normal3f(0.0f, 1.0f, 0.0f);
floorBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
floorBatch.Vertex3f(10.0f,-10.0f , z - 10.0f);
}
floorBatch.End();
ceilingBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);// 哪里来，哪里回；根据法线来确认逆时针方向。strip的画法要熟悉，从其实的两个顶点开始已折线的形式前进
for (z = 60.f; z >= 0.0f; z -= 10.0f)
{
ceilingBatch.Normal3f(0.0f, -1.0f, 0.0f);
ceilingBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
ceilingBatch.Vertex3f(10.0f, 10.0f, z);
ceilingBatch.Normal3f(0.0f, -1.0f, 0.0f);
ceilingBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
ceilingBatch.Vertex3f(-10.0f, 10.0f, z);
ceilingBatch.Normal3f(0.0f, -1.0f, 0.0f);
ceilingBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
ceilingBatch.Vertex3f(10.0f, 10.0f, z - 10.0f);
ceilingBatch.Normal3f(0.0f, -1.0f, 0.0f);
ceilingBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
ceilingBatch.Vertex3f(-10.0f, 10.0f, z - 10.0f);
}
ceilingBatch.End();
leftWallBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for (z = 60.f; z >= 0.0f; z -= 10.0f)
{
leftWallBatch.Normal3f(1.0f, 0.0f, 0.0f);
leftWallBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
leftWallBatch.Vertex3f(-10.0f, 10.0f, z);
leftWallBatch.Normal3f(1.0f, 0.0f, 0.0f);
leftWallBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
leftWallBatch.Vertex3f(-10.0f, -10.0f, z);
leftWallBatch.Normal3f(1.0f, 0.0f, 0.0f);
leftWallBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
leftWallBatch.Vertex3f(-10.0f, 10.0f, z - 10.0f);
leftWallBatch.Normal3f(1.0f, 0.0f, 0.0f);
leftWallBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
leftWallBatch.Vertex3f(-10.0f, -10.0f, z - 10.0f);
}
leftWallBatch.End();
rightWallBatch.Begin(GL_TRIANGLE_STRIP, 28, 1);
for (z = 60.f; z >= 0.0f; z -= 10.0f)
{
rightWallBatch.Normal3f(-1.0f, 0.0f, 0.0f);
rightWallBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
rightWallBatch.Vertex3f(10.0f, -10.0f, z);
rightWallBatch.Normal3f(-1.0f, 0.0f, 0.0f);
rightWallBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
rightWallBatch.Vertex3f(10.0f, 10.0f, z);
rightWallBatch.Normal3f(-1.0f, 0.0f, 0.0f);
rightWallBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
rightWallBatch.Vertex3f(10.0f, -10.0f, z - 10.0f);
rightWallBatch.Normal3f(-1.0f, 1.0f, 1.0f);
rightWallBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
rightWallBatch.Vertex3f(10.0f, 10.0f, z - 10.0f);
}
rightWallBatch.End();
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
shaderManager.InitializeStockShaders();
#ifdef OPENGL_ES
pointSizeShader = gltLoadShaderPairSrcWithAttributes(szFlatShaderVP, szFlatShaderFP, 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
#endif//OPENGL_ES
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 34);
int nVerts = 0;
vVerts[nVerts][0] = x;
vVerts[nVerts][1] = y;
vVerts[nVerts][2] = 0.0f;
for(angle = 0; angle < 2.0f * 3.141592f; angle += 0.2f) {
nVerts++;
vVerts[nVerts][0] = x + float(cos(angle)) * r;
vVerts[nVerts][1] = y + float(sin(angle)) * r;
vVerts[nVerts][2] = 0.0f;
}
nVerts++;
vVerts[nVerts][0] = x + r;;
vVerts[nVerts][1] = y;
vVerts[nVerts][2] = 0.0f;
moonBatch.CopyVertexData3f(vVerts);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
}
//////////////////////////////////////////////////////////////////
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
// Make sure OpenGL entry points are set
glewInit();
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
// This makes a torus
gltMakeTorus(torusBatch, 0.4f, 0.15f, 40, 20);
// This makes a sphere
gltMakeSphere(sphereBatch, 0.1f, 26, 13);
// Make the solid ground
GLfloat texSize = 10.0f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.MultiTexCoord2f(0, texSize, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.MultiTexCoord2f(0, texSize, texSize);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.MultiTexCoord2f(0, 0.0f, texSize);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
int x = 500;
int y = 155;
int width = 300;
int height = 155;
logoBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
// Upper left hand corner
logoBatch.MultiTexCoord2f(0, 0.0f, height);
logoBatch.Vertex3f(x, y, 0.0);
// Lower left hand corner
logoBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
logoBatch.Vertex3f(x, y - height, 0.0f);
// Lower right hand corner
logoBatch.MultiTexCoord2f(0, width, 0.0f);
logoBatch.Vertex3f(x + width, y - height, 0.0f);
// Upper righ hand corner
logoBatch.MultiTexCoord2f(0, width, height);
logoBatch.Vertex3f(x + width, y, 0.0f);
logoBatch.End();
// Make 4 texture objects
glGenTextures(4, uiTextures);
// Load the Marble
glBindTexture(GL_TEXTURE_2D, uiTextures[0]);
LoadTGATexture("marble.tga", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Load Mars
glBindTexture(GL_TEXTURE_2D, uiTextures[1]);
LoadTGATexture("marslike.tga", GL_LINEAR_MIPMAP_LINEAR,
GL_LINEAR, GL_CLAMP_TO_EDGE);
// Load Moon
glBindTexture(GL_TEXTURE_2D, uiTextures[2]);
LoadTGATexture("moonlike.tga", GL_LINEAR_MIPMAP_LINEAR,
GL_LINEAR, GL_CLAMP_TO_EDGE);
// Load the Logo
glBindTexture(GL_TEXTURE_RECTANGLE, uiTextures[3]);
LoadTGATextureRect("OpenGL-Logo.tga", GL_NEAREST, GL_NEAREST, GL_CLAMP_TO_EDGE);
rectReplaceShader = gltLoadShaderPairWithAttributes("RectReplace.vp", "RectReplace.fp",
2, GLT_ATTRIBUTE_VERTEX, "vVertex", GLT_ATTRIBUTE_TEXTURE0, "vTexCoord");
locRectMVP = glGetUniformLocation(rectReplaceShader, "mvpMatrix");
locRectTexture = glGetUniformLocation(rectReplaceShader, "rectangleImage");
// Randomly place the spheres
for(int i = 0; i < NUM_SPHERES; i++) {
GLfloat x = ((GLfloat)((rand() % 400) - 200) * 0.1f);
GLfloat z = ((GLfloat)((rand() % 400) - 200) * 0.1f);
spheres[i].SetOrigin(x, 0.0f, z);
}
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
#ifndef OPENGL_ES
glEnable(GL_POINT_SPRITE);
#endif
shaderManager.InitializeStockShaders();
// A number of shipping drivers are not conformant to the current OpenGL
// spec and require this. NVidia... in particular. The OpenGL specification
// states that this is always "on", in fact you can't enable or disable it
// anymore. Adding this lines "fixes" this on non-conformant drivers, but
// be aware, if you have a pure core (and working correctly) GL context,
//you should not do this
#ifndef OPENGL_ES
glEnable(GL_POINT_SPRITE);
#endif
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
moonBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
moonBatch.Vertex3f(x - r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
moonBatch.Vertex3f(x + r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
moonBatch.Vertex3f(x + r, y + r, 0.0f);
moonBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
moonBatch.Vertex3f(x - r, y + r, 0.0f);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
// Turn on line antialiasing, and give hint to do the best
// job possible.
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
#ifndef OPENGL_ES
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
#endif
starFieldShader = gltLoadShaderPairWithAttributes("StarField.vp", "StarField.fp", 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
locMVP = glGetUniformLocation(starFieldShader, "mvpMatrix");
locStarTexture = glGetUniformLocation(starFieldShader, "starImage");
#ifdef OPENGL_ES
locPointSize = glGetUniformLocation(starFieldShader, "fPointSize");
#endif
moonShader = gltLoadShaderPairWithAttributes("MoonShader.vp", "MoonShader.fp", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoords");
locMoonMVP = glGetUniformLocation(moonShader, "mvpMatrix");
locMoonTexture = glGetUniformLocation(moonShader, "moonImage");
locMoonTime = glGetUniformLocation(moonShader, "fTime");
glGenTextures(1, &starTexture);
glBindTexture(GL_TEXTURE_2D, starTexture);
LoadTGATexture("Star.tga", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
#ifndef OPENGL_ES
glGenTextures(1, &moonTexture);
glBindTexture(GL_TEXTURE_2D_ARRAY, moonTexture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 64, 64, 30, 0,
GL_BGRA, GL_UNSIGNED_BYTE, NULL);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
GLbyte *pBits;
int nWidth, nHeight, nComponents;
GLenum eFormat;
// Read the texture bits
pBits = gltReadTGABits(cFile, &nWidth, &nHeight, &nComponents, &eFormat);
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, i, nWidth, nHeight, 1, GL_BGRA, GL_UNSIGNED_BYTE, pBits);
free(pBits);
}
#else
glGenTextures(29, moonTextures);
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_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
glBindTexture(GL_TEXTURE_2D, moonTextures[i]);
LoadTGATexture(cFile, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
}
#endif
}
void Setup() {
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
shaderManager.InitializeStockShaders();
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC()
{
#ifndef ANGLE
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
#endif
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
#if defined __APPLE__ || defined ANGLE
ninja.LoadFromSBM("ninja.sbm",
GLT_ATTRIBUTE_VERTEX,
GLT_ATTRIBUTE_NORMAL,
GLT_ATTRIBUTE_TEXTURE0);
#else
ninja.LoadFromSBM("../../../Src/Models/Ninja/ninja.sbm",
GLT_ATTRIBUTE_VERTEX,
GLT_ATTRIBUTE_NORMAL,
GLT_ATTRIBUTE_TEXTURE0);
#endif
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
gltMakeSphere(sphereBatch, 0.1f, 26, 13);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
glGenTextures(1, ninjaTex);
glBindTexture(GL_TEXTURE_2D, ninjaTex[0]);
#if defined __APPLE__
LoadBMPTexture("NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP);
#elif defined ANGLE
LoadBMPTexture("NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
#else
LoadBMPTexture("../../../Src/Models/Ninja/NinjaComp.bmp", GL_LINEAR, GL_LINEAR, GL_CLAMP);
#endif
glGenFramebuffers(1,&fboName);
// Create depth renderbuffer
glGenRenderbuffers(1, &depthBufferName);
glBindRenderbuffer(GL_RENDERBUFFER, depthBufferName);
#ifndef ANGLE
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, screenWidth, screenHeight);
#else
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, screenWidth, screenHeight);
#endif
// Create 3 color renderbuffers
glGenRenderbuffers(3, renderBufferNames);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[0]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[1]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
glBindRenderbuffer(GL_RENDERBUFFER, renderBufferNames[2]);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, screenWidth, screenHeight);
// Attach all 4 renderbuffers to FBO
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBufferName);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderBufferNames[0]);
#ifndef OPENGL_ES
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_RENDERBUFFER, renderBufferNames[1]);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_RENDERBUFFER, renderBufferNames[2]);
#endif
// See bind frag location in Chapter 9
processProg = gltLoadShaderPairWithAttributes("multibuffer.vs", "multibuffer_frag_location.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "texCoord0");
#ifndef OPENGL_ES
glBindFragDataLocation(processProg, 0, "oStraightColor");
glBindFragDataLocation(processProg, 1, "oGreyscale");
glBindFragDataLocation(processProg, 2, "oLumAdjColor");
#endif
glLinkProgram(processProg);
#ifndef OPENGL_ES
// Create 3 new buffer objects
glGenBuffers(3,texBO);
glGenTextures(1, &texBOTexture);
int count = 0;
float* fileData = 0;
// Load first texBO with a tangent-like curve, 1024 values
fileData = LoadFloatData("LumTan.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[0]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load second texBO with a sine-like curve, 1024 values
fileData = LoadFloatData("LumSin.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[1]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load third texBO with a linear curve, 1024 values
fileData = LoadFloatData("LumLinear.data", &count);
if (count > 0)
{
glBindBuffer(GL_TEXTURE_BUFFER_ARB, texBO[2]);
glBufferData(GL_TEXTURE_BUFFER_ARB, sizeof(float)*count, fileData, GL_STATIC_DRAW);
delete fileData;
}
// Load the Tan ramp first
glBindBuffer(GL_TEXTURE_BUFFER_ARB, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_BUFFER_ARB, texBOTexture);
glTexBufferARB(GL_TEXTURE_BUFFER_ARB, GL_R32F, texBO[0]);
#endif
glActiveTexture(GL_TEXTURE0);
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Make sure all went well
gltCheckErrors();
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC(void)
{
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
gltMakeCylinder(bckgrndCylBatch, 4.0, 4.0, 5.2, 1024, 1);
gltMakeDisk(diskBatch, 0.0, 1.5, 40, 10);
glass1Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass1Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f( 1.0f, 1.0f, 0.0f);
glass1Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass1Batch.End();
glass2Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass2Batch.Vertex3f( 0.0f, 1.0f, 0.0f);
glass2Batch.Vertex3f( 1.0f, 0.0f, 0.0f);
glass2Batch.Vertex3f( 0.0f, -1.0f, 0.0f);
glass2Batch.Vertex3f(-1.0f, 0.0f, 0.0f);
glass2Batch.End();
glass3Batch.Begin(GL_TRIANGLE_FAN, 3, 1);
glass3Batch.Vertex3f( 0.0f, 1.0f, 0.0f);
glass3Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass3Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass3Batch.End();
glass4Batch.Begin(GL_TRIANGLE_FAN, 4, 1);
glass4Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass4Batch.Vertex3f( 1.0f, 0.5f, 0.0f);
glass4Batch.Vertex3f( 1.0f, -1.0f, 0.0f);
glass4Batch.Vertex3f(-1.0f, -0.5f, 0.0f);
glass4Batch.End();
glGenTextures(2, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
glBindTexture(GL_TEXTURE_2D, textures[1]);
LoadBMPTexture("start_line.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create and bind an FBO
glGenFramebuffers(1,&msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// Create depth texture
glGenTextures(1, &depthTextureName);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, depthTextureName);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_DEPTH_COMPONENT24, screenWidth, screenHeight, GL_FALSE);
// Setup HDR render texture
glGenTextures(1, msTexture);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, msTexture[0]);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_RGBA8, screenWidth, screenHeight, GL_FALSE);
// Create and bind an FBO
glGenFramebuffers(1, &msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// Attach texture to first color attachment and the depth RBO
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, msTexture[0], 0);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, depthTextureName, 0);
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Load oit resolve shader
oitResolve = gltLoadShaderPairWithAttributes("basic.vs", "oitResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(oitResolve, 0, "oColor");
glLinkProgram(oitResolve);
// Load multisample resolve shader
msResolve = gltLoadShaderPairWithAttributes("basic.vs", "msResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(msResolve, 0, "oColor");
glLinkProgram(msResolve);
// Make sure all went well
gltCheckErrors(oitResolve);
gltCheckErrors(msResolve);
int numMasks = 0;
glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &numMasks);
}
// This function does any needed initialization on the rendering
// context.
void SetupRC(void)
{
// Background
glClearColor(0.2f, 0.2f, 0.3f, 1.0f );
glEnable(GL_DEPTH_TEST);
shaderManager.InitializeStockShaders();
viewFrame.MoveForward(4.0f);
// Make the torus
gltMakeTorus(torusBatch, .70f, 0.10f, 11, 7);
gltMakeCube(cubeBatch, 1.0f);
toonShader = gltLoadShaderTripletWithAttributes("GSTessellate.vs", "GSTessellate.gs", "GSTessellate.fs", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal");
locMVP = glGetUniformLocation(toonShader, "mvpMatrix");
locMV = glGetUniformLocation(toonShader, "mvMatrix");
locNM = glGetUniformLocation(toonShader, "normalMatrix");
static const GLfloat vertices[] =
{
-1.0f, -1.0f, -1.0f, // A
-1.0f, -1.0f, 1.0f, // B
-1.0f, 1.0f, -1.0f, // C
-1.0f, 1.0f, 1.0f, // D
1.0f, -1.0f, -1.0f, // E
1.0f, -1.0f, 1.0f, // F
1.0f, 1.0f, -1.0f, // G
1.0f, 1.0f, 1.0f // H
};
static const GLshort indices[] =
{
0, 1, 2,
3, 2, 1,
1, 5, 3,
7, 3, 5,
5, 4, 7,
6, 7, 4,
4, 0, 6,
2, 6, 0,
4, 5, 0,
1, 0, 5,
3, 7, 2,
6, 2, 7
};
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
glEnableVertexAttribArray(0);
glGenBuffers(1, &element_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, element_buffer);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
GLenum e = glGetError();
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC()
{
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
gltMakeSphere(sphereBatch, 0.1f, 26, 13);
gltMakeCylinder(cylinderBatch,0.3f, 0.2f, 1.0, 10,10);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
mirrorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
mirrorBatch.Normal3f( 0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(-1.0f, 0.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
mirrorBatch.Normal3f(0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(1.0f, 0.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
mirrorBatch.Normal3f(0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(1.0f, 2.0f, 0.0f);
mirrorBatch.Color4f(1.0f, 0.0f, 0.0f, 1.0f);
mirrorBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
mirrorBatch.Normal3f( 0.0f, 1.0f, 0.0f);
mirrorBatch.Vertex3f(-1.0f, 2.0f, 0.0f);
mirrorBatch.End();
mirrorBorderBatch.Begin(GL_TRIANGLE_STRIP, 13);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.1f, 0.01f);
mirrorBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f(0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 0.1f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(0.9f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 2.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(0.9f, 2.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(1.0f, 1.9f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 2.f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 1.9f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-0.9f, 2.f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-1.0f, 0.0f, 0.01f);
mirrorBorderBatch.Normal3f( 0.0f, 0.0f, 1.0f);
mirrorBorderBatch.Vertex3f(-0.9f, 0.0f, 0.01f);
mirrorBorderBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create and bind an FBO
glGenFramebuffers(1,&fboName);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fboName);
// Create depth renderbuffer
glGenRenderbuffers(1, &depthBufferName);
glBindRenderbuffer(GL_RENDERBUFFER, depthBufferName);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32, mirrorTexWidth, mirrorTexHeight);
// Create the reflection texture
glGenTextures(1, &mirrorTexture);
glBindTexture(GL_TEXTURE_2D, mirrorTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, mirrorTexWidth, mirrorTexHeight, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// Attach texture to first color attachment and the depth RBO
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mirrorTexture, 0);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBufferName);
// Make sure all went well
gltCheckErrors();
// Reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
}
///////////////////////////////////////////////////////////////////////////////
// OpenGL related startup code is safe to put here. Load textures, etc.
void SetupRC(void)
{
#ifndef ANGLE
GLenum err = glewInit();
if (GLEW_OK != err)
{
/* Problem: glewInit failed, something is seriously wrong. */
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
}
#endif
// Initialze Shader Manager
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
// Black
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gltMakeTorus(torusBatch, 0.4f, 0.15f, 35, 35);
GLfloat alpha = 0.25f;
floorBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 0.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, 20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 10.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(20.0f, -0.41f, -20.0f);
floorBatch.Color4f(0.0f, 1.0f, 0.0f, alpha);
floorBatch.MultiTexCoord2f(0, 0.0f, 10.0f);
floorBatch.Normal3f(0.0, 1.0f, 0.0f);
floorBatch.Vertex3f(-20.0f, -0.41f, -20.0f);
floorBatch.End();
glGenTextures(1, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
LoadBMPTexture("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// Create blur program
blurProg = gltLoadShaderPairWithAttributes("blur.vs", "blur.fs", 2,
GLT_ATTRIBUTE_VERTEX, "vVertex", GLT_ATTRIBUTE_TEXTURE0, "texCoord0");
// Create blur textures
glGenTextures(6, blurTextures);
// XXX I don't think this is necessary. Should set texture data to NULL
// Allocate a pixel buffer to initialize textures and PBOs
pixelDataSize = screenWidth*screenHeight*3*sizeof(unsigned int); // XXX This should be unsigned byte
void* data = (void*)malloc(pixelDataSize);
memset(data, 0x00, pixelDataSize);
// Setup 6 texture units for blur effect
// Initialize texture data
for (int i=0; i<6;i++)
{
glActiveTexture(GL_TEXTURE1+i);
glBindTexture(GL_TEXTURE_2D, blurTextures[i]);
#ifndef OPENGL_ES
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
#else
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
#endif
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_RGB, screenWidth, screenHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
}
// Alloc space for copying pixels so we dont call malloc on every draw
#ifndef OPENGL_ES
glGenBuffers(1, pixBuffObjs);
glBindBuffer(GL_PIXEL_PACK_BUFFER, pixBuffObjs[0]);
glBufferData(GL_PIXEL_PACK_BUFFER, pixelDataSize, pixelData, GL_DYNAMIC_COPY);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
#endif
// Create geometry and a matrix for screen aligned drawing
gltGenerateOrtho2DMat(screenWidth, screenHeight, orthoMatrix, screenQuad);
// Make sure all went well
gltCheckErrors();
}
void SetupRC()
{
glClearColor(0.7f, 0.7f, 0.7f, 1.0f );
shaderManager.InitializeStockShaders();
glEnable(GL_DEPTH_TEST);
transformPipeline.SetMatrixStacks(modelViewMatrix, projectionMatrix);
cameraFrame.MoveForward(-15.0f);
// 一组图元顶点——长得像佛罗里达州
GLfloat vCoast[24][3] = {
{2.80, 1.20, 0.0 }, {2.0, 1.20, 0.0 },
{2.0, 1.08, 0.0 }, {2.0, 1.08, 0.0 },
{0.0, 0.80, 0.0 }, {-.32, 0.40, 0.0 },
{-.48, 0.2, 0.0 }, {-.40, 0.0, 0.0 },
{-.60, -.40, 0.0 }, {-.80, -.80, 0.0 },
{-.80, -1.4, 0.0 }, {-.40, -1.60, 0.0 },
{0.0, -1.20, 0.0 }, { .2, -.80, 0.0 },
{.48, -.40, 0.0 }, {.52, -.20, 0.0 },
{.48, .20, 0.0 }, {.80, .40, 0.0 },
{1.20, .80, 0.0 }, {1.60, .60, 0.0 },
{2.0, .60, 0.0 }, {2.2, .80, 0.0 },
{2.40, 1.0, 0.0 }, {2.80, 1.0, 0.0 }
};
// 点批次
pointBatch.Begin(GL_POINTS, 24);
pointBatch.CopyVertexData3f(vCoast);
pointBatch.End();
// 线段批次
lineBatch.Begin(GL_LINES, 24);
lineBatch.CopyVertexData3f(vCoast);
lineBatch.End();
// 线批次
lineStripBatch.Begin(GL_LINE_STRIP, 24);
lineStripBatch.CopyVertexData3f(vCoast);
lineStripBatch.End();
// 循环线批次
lineLoopBatch.Begin(GL_LINE_LOOP, 24);
lineLoopBatch.CopyVertexData3f(vCoast);
lineLoopBatch.End();
GLfloat vPyramid[12][3] = {
-2.0f, 0.0f, -2.0f,
2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, -2.0f,
2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, 2.0f,
0.0f, 4.0f, 0.0f,
-2.0f, 0.0f, 2.0f,
-2.0f, 0.0f, -2.0f,
0.0f, 4.0f, 0.0f
};
triangleBatch.Begin(GL_TRIANGLES, 12);
triangleBatch.CopyVertexData3f(vPyramid);
triangleBatch.End();
GLfloat vPoints[100][3];
int nVerts = 0;
GLfloat r = 3.0f;
vPoints[nVerts][0] = 0.0f;
vPoints[nVerts][1] = 0.0f;
vPoints[nVerts][2] = 0.0f;
for(GLfloat angle = 0; angle < M3D_2PI; angle += M3D_2PI / 6.0f)
{
nVerts++;
vPoints[nVerts][0] = float(cos(angle)) * r;
vPoints[nVerts][1] = float(sin(angle)) * r;
vPoints[nVerts][2] = -0.5f;
}
nVerts++;
vPoints[nVerts][0] = r;
vPoints[nVerts][1] = 0;
vPoints[nVerts][2] = 0.0f;
triangleFanBatch.Begin(GL_TRIANGLE_FAN, 8);
triangleFanBatch.CopyVertexData3f(vPoints);
triangleFanBatch.End();
int iCounter = 0;
GLfloat radius = 3.0f;
for(GLfloat angle = 0.0f; angle <= (2.0f * M3D_PI); angle += 0.3f)
{
GLfloat x = radius * sin(angle);
GLfloat y = radius * cos(angle);
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = x;
vPoints[iCounter][1] = y;
vPoints[iCounter][2] = 0.5;
iCounter++;
}
vPoints[iCounter][0] = vPoints[0][0];
vPoints[iCounter][1] = vPoints[0][1];
vPoints[iCounter][2] = -0.5;
iCounter++;
vPoints[iCounter][0] = vPoints[1][0];
vPoints[iCounter][1] = vPoints[1][1];
vPoints[iCounter][2] = 0.5;
iCounter++;
triangleStripBatch.Begin(GL_TRIANGLE_STRIP, iCounter);
triangleStripBatch.CopyVertexData3f(vPoints);
triangleStripBatch.End();
}
// This function does any needed initialization on the rendering
// context.
void SetupRC()
{
M3DVector3f vVerts[SMALL_STARS]; // SMALL_STARS is the largest batch we are going to need
int i;
shaderManager.InitializeStockShaders();
// Populate star list
smallStarBatch.Begin(GL_POINTS, SMALL_STARS);
for(i = 0; i < SMALL_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
smallStarBatch.CopyVertexData3f(vVerts);
smallStarBatch.End();
// Populate star list
mediumStarBatch.Begin(GL_POINTS, MEDIUM_STARS);
for(i = 0; i < MEDIUM_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
mediumStarBatch.CopyVertexData3f(vVerts);
mediumStarBatch.End();
// Populate star list
largeStarBatch.Begin(GL_POINTS, LARGE_STARS);
for(i = 0; i < LARGE_STARS; i++)
{
vVerts[i][0] = (GLfloat)(rand() % SCREEN_X);
vVerts[i][1] = (GLfloat)(rand() % (SCREEN_Y - 100)) + 100.0f;
vVerts[i][2] = 0.0f;
}
largeStarBatch.CopyVertexData3f(vVerts);
largeStarBatch.End();
M3DVector3f vMountains[12] = { 0.0f, 25.0f, 0.0f,
50.0f, 100.0f, 0.0f,
100.0f, 25.0f, 0.0f,
225.0f, 125.0f, 0.0f,
300.0f, 50.0f, 0.0f,
375.0f, 100.0f, 0.0f,
460.0f, 25.0f, 0.0f,
525.0f, 100.0f, 0.0f,
600.0f, 20.0f, 0.0f,
675.0f, 70.0f, 0.0f,
750.0f, 25.0f, 0.0f,
800.0f, 90.0f, 0.0f };
mountainRangeBatch.Begin(GL_LINE_STRIP, 12);
mountainRangeBatch.CopyVertexData3f(vMountains);
mountainRangeBatch.End();
// The Moon
GLfloat x = 700.0f; // Location and radius of moon
GLfloat y = 500.0f;
GLfloat r = 50.0f;
GLfloat angle = 0.0f; // Another looping variable
moonBatch.Begin(GL_TRIANGLE_FAN, 4, 1);
moonBatch.MultiTexCoord2f(0, 0.0f, 0.0f);
moonBatch.Vertex3f(x - r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 0.0f);
moonBatch.Vertex3f(x + r, y - r, 0.0f);
moonBatch.MultiTexCoord2f(0, 1.0f, 1.0f);
moonBatch.Vertex3f(x + r, y + r, 0.0f);
moonBatch.MultiTexCoord2f(0, 0.0f, 1.0f);
moonBatch.Vertex3f(x - r, y + r, 0.0f);
moonBatch.End();
// Black background
glClearColor(0.0f, 0.0f, 0.0f, 1.0f );
// Turn on line antialiasing, and give hint to do the best
// job possible.
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
starFieldShader = gltLoadShaderPairWithAttributes("StarField.vp", "StarField.fp", 1, GLT_ATTRIBUTE_VERTEX, "vVertex");
locMVP = glGetUniformLocation(starFieldShader, "mvpMatrix");
locStarTexture = glGetUniformLocation(starFieldShader, "starImage");
moonShader = gltLoadShaderPairWithAttributes("MoonShader.vp", "MoonShader.fp", 2, GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoords");
locMoonMVP = glGetUniformLocation(moonShader, "mvpMatrix");
locMoonTexture = glGetUniformLocation(moonShader, "moonImage");
locMoonTime = glGetUniformLocation(moonShader, "fTime");
glGenTextures(1, &starTexture);
glBindTexture(GL_TEXTURE_2D, starTexture);
LoadTGATexture("Star.tga", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE);
glGenTextures(1, &moonTexture);
glBindTexture(GL_TEXTURE_2D_ARRAY, moonTexture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 64, 64, 30, 0,
GL_BGRA, GL_UNSIGNED_BYTE, NULL);
for(int i = 0; i < 29; i++) {
char cFile[32];
sprintf(cFile, "moon%02d.tga", i);
GLbyte *pBits;
int nWidth, nHeight, nComponents;
GLenum eFormat;
// Read the texture bits
pBits = gltReadTGABits(cFile, &nWidth, &nHeight, &nComponents, &eFormat);
glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, i, nWidth, nHeight, 1, GL_BGRA, GL_UNSIGNED_BYTE, pBits);
free(pBits);
}
}
void SetupRenderingContext(){
glClearColor(0.0f,0.0f,0.0f,1.0f); //background is black
shaderManager.InitializeStockShaders(); //use stock shaders
}