Method computeLinearZAndNormal

Source/RenderPasses/SVGFPass/SVGFPass.cpp:304–311

Extracts linear z and its derivative from the linear Z texture and packs the normal from the world normal texture and packes them into the FBO. (It's slightly wasteful to copy linear z here, but having this all together in a single buffer is a small simplification, since we make a copy of it to refer to in the next frame.)

// together in a single buffer is a small simplification, since we make a
// copy of it to refer to in the next frame.)
void SVGFPass::computeLinearZAndNormal(RenderContext* pRenderContext, ref<Texture> pLinearZTexture, ref<Texture> pWorldNormalTexture)
{
    auto perImageCB = mpPackLinearZAndNormal->getRootVar()["PerImageCB"];
    perImageCB["gLinearZ"] = pLinearZTexture;
    perImageCB["gNormal"] = pWorldNormalTexture;

    mpPackLinearZAndNormal->execute(pRenderContext, mpLinearZAndNormalFbo);
}

void SVGFPass::computeReprojection(
    RenderContext* pRenderContext,