Method createGpuPrograms

Components/RTShaderSystem/src/OgreShaderProgramManager.cpp:117–153

-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
void ProgramManager::createGpuPrograms(ProgramSet* programSet)
{
    // Before we start we need to make sure that the pixel shader input
    //  parameters are the same as the vertex output, this required by 
    //  shader models 4 and 5.
    matchVStoPSInterface(programSet);

    // Grab the matching writer.
    const String& language = ShaderGenerator::getSingleton().getTargetLanguage();

    auto programWriter = ProgramWriterManager::getSingleton().getProgramWriter(language);

    ProgramProcessor* programProcessor = mDefaultProgramProcessors.front();
    
    // Call the pre creation of GPU programs method.
    if (!programProcessor->preCreateGpuPrograms(programSet))
        OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "preCreateGpuPrograms failed");
    
    // Create the shader programs
    for(auto type : {GPT_VERTEX_PROGRAM, GPT_FRAGMENT_PROGRAM})
    {
        auto gpuProgram = createGpuProgram(programSet->getCpuProgram(type), programWriter, language,
                                           ShaderGenerator::getSingleton().getShaderProfiles(type),
                                           ShaderGenerator::getSingleton().getShaderCachePath());
        programSet->setGpuProgram(gpuProgram);
    }

    // update VS flags
    auto gpuVs = programSet->getGpuProgram(GPT_VERTEX_PROGRAM);
    auto cpuVs = programSet->getCpuProgram(GPT_VERTEX_PROGRAM);
    gpuVs->setSkeletalAnimationIncluded(cpuVs->getSkeletalAnimationIncluded());
    gpuVs->setInstancingIncluded(cpuVs->getInstancingIncluded());

    // Call the post creation of GPU programs method.
    if(!programProcessor->postCreateGpuPrograms(programSet))
        OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR, "postCreateGpuPrograms failed");
}

//-----------------------------------------------------------------------------
GpuProgramPtr ProgramManager::createGpuProgram(Program* shaderProgram,