Method buildAccelerationStructure

Source/Falcor/Core/API/RenderContext.cpp:610–634

}

void RenderContext::buildAccelerationStructure(
    const RtAccelerationStructure::BuildDesc& desc,
    uint32_t postBuildInfoCount,
    RtAccelerationStructurePostBuildInfoDesc* pPostBuildInfoDescs
)
{
    GFXAccelerationStructureBuildInputsTranslator translator = {};

    gfx::IAccelerationStructure::BuildDesc buildDesc = {};
    buildDesc.dest = desc.dest->getGfxAccelerationStructure();
    buildDesc.scratchData = desc.scratchData;
    buildDesc.source = desc.source ? desc.source->getGfxAccelerationStructure() : nullptr;
    buildDesc.inputs = translator.translate(desc.inputs);

    std::vector<gfx::AccelerationStructureQueryDesc> queryDescs(postBuildInfoCount);
    for (uint32_t i = 0; i < postBuildInfoCount; i++)
    {
        queryDescs[i].firstQueryIndex = pPostBuildInfoDescs[i].index;
        queryDescs[i].queryPool = pPostBuildInfoDescs[i].pool->getGFXQueryPool();
        queryDescs[i].queryType = getGFXAccelerationStructurePostBuildQueryType(pPostBuildInfoDescs[i].type);
    }
    auto rtEncoder = getLowLevelData()->getRayTracingCommandEncoder();
    rtEncoder->buildAccelerationStructure(buildDesc, (int)postBuildInfoCount, queryDescs.data());
    mCommandsPending = true;
}

void RenderContext::copyAccelerationStructure(
    RtAccelerationStructure* dest,