const Ogre::GpuProgramPtr& MaterialGenerator::GetVertexShader(Perm permutation)
{
ProgramMap::iterator i = mVsMap.find(permutation);
if (i != mVsMap.end())
{
return i->second;
}
else
{
// Create it
mVsMap[permutation] = GenerateVertexShader(permutation);
return mVsMap[permutation];
}
}
Framework::OpenGl::ProgramPtr CGSH_OpenGL::GenerateShader(const SHADERCAPS& caps)
{
auto vertexShader = GenerateVertexShader(caps);
auto fragmentShader = GenerateFragmentShader(caps);
auto result = std::make_shared<Framework::OpenGl::CProgram>();
result->AttachShader(vertexShader);
result->AttachShader(fragmentShader);
bool linkResult = result->Link();
assert(linkResult);
assert(glGetError() == GL_NO_ERROR);
return result;
}
