Method execute

Source/RenderPasses/SimplePostFX/SimplePostFX.cpp:175–289

}

void SimplePostFX::execute(RenderContext* pRenderContext, const RenderData& renderData)
{
    auto pSrc = renderData.getTexture(kSrc);
    auto pDst = renderData.getTexture(kDst);
    FALCOR_ASSERT(pSrc && pDst);

    // Issue error and disable pass if I/O size doesn't match. The user can hit continue and fix the config or abort.
    if (getEnabled() && (pSrc->getWidth() != pDst->getWidth() || pSrc->getHeight() != pDst->getHeight()))
    {
        logError("SimplePostFX I/O sizes don't match. The pass will be disabled.");
        mEnabled = false;
    }
    const uint2 resolution = uint2(pSrc->getWidth(), pSrc->getHeight());

    // if we have 'identity' settings, we can just copy input to output
    // clang-format off
    if (getEnabled() == false || getWipe() >= 1.f || (
        getBloomAmount() == 0.f &&
        getChromaticAberrationAmount() == 0.f &&
        getBarrelDistortAmount() == 0.f &&
        all(getSaturationCurve() == float3(1.f)) &&
        all(getColorOffset() == float3(0.5f)) &&
        all(getColorScale() == float3(0.5f)) &&
        all(getColorPower() == float3(0.5f)) &&
        getColorOffsetScalar() == 0.f &&
        getColorScaleScalar() == 0.f &&
        getColorPowerScalar() == 0.f
        ))
    {
        // wipe is all the way across, which corresponds to no effect
        pRenderContext->blit(pSrc->getSRV(), pDst->getRTV());
        return;
    }
    // clang-format on

    preparePostFX(pRenderContext, resolution.x, resolution.y);
    if (getBloomAmount() > 0.f)
    {
        // Downsampling
        {
            auto var = mpDownsamplePass->getRootVar();
            var["gLinearSampler"] = mpLinearSampler;
            for (int level = 0; level < kNumLevels; ++level)
            {
                uint2 res = {std::max(1u, resolution.x >> (level + 1)), std::max(1u, resolution.y >> (level + 1))};
                float2 invres = float2(1.f / res.x, 1.f / res.y);
                var["PerFrameCB"]["gResolution"] = res;
                var["PerFrameCB"]["gInvRes"] = invres;
                var["gSrc"] = level ? mpPyramid[level] : pSrc;
                var["gDst"] = mpPyramid[level + 1];
                mpDownsamplePass->execute(pRenderContext, uint3(res, 1));
            }
        }

        // Upsampling
        {
            auto var = mpUpsamplePass->getRootVar();
            var["gLinearSampler"] = mpLinearSampler;