Method createParameterBlock

Source/Falcor/DiffRendering/SceneGradients.cpp:66–102

}

void SceneGradients::createParameterBlock()
{
    DefineList defines;
    defines.add("SCENE_GRADIENTS_BLOCK");
    auto pPass = ComputePass::create(mpDevice, kShaderFilename, "main", defines);
    auto pReflector = pPass->getProgram()->getReflector()->getParameterBlock(kSceneGradientsBlockName);
    FALCOR_ASSERT(pReflector);

    // Create GPU buffers.
    auto bindFlags = ResourceBindFlags::ShaderResource | ResourceBindFlags::UnorderedAccess;
    for (size_t i = 0; i < size_t(GradientType::Count); i++)
    {
        if (mGradInfos[i].active)
        {
            mpGrads[i] = mpDevice->createBuffer(
                mGradInfos[i].dim * sizeof(float), bindFlags | ResourceBindFlags::Shared, MemoryType::DeviceLocal, nullptr
            );
            mpTmpGrads[i] = mpDevice->createBuffer(
                mGradInfos[i].dim * mGradInfos[i].hashSize * sizeof(float), bindFlags, MemoryType::DeviceLocal, nullptr
            );
        }
        else
        {
            mpGrads[i] = mpTmpGrads[i] = nullptr;
        }
    }

    // Bind resources to parameter block.
    mpSceneGradientsBlock = ParameterBlock::create(mpDevice, pReflector);
    auto var = mpSceneGradientsBlock->getRootVar();
    for (size_t i = 0; i < size_t(GradientType::Count); i++)
    {
        var["gradDim"][i] = mGradInfos[i].dim;
        var["hashSize"][i] = mGradInfos[i].hashSize;
        var[kTmpGradsBufferName][i] = mpTmpGrads[i];
    }
}

void SceneGradients::clearGrads(RenderContext* pRenderContext, GradientType _gradType)
{