Method execute

Source/RenderPasses/ToneMapper/ToneMapper.cpp:212–272

}

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

    // Issue warning if image will be resampled. The render pass supports this but image quality may suffer.
    if (pSrc->getWidth() != pDst->getWidth() || pSrc->getHeight() != pDst->getHeight())
    {
        logWarning("ToneMapper pass I/O has different dimensions. The image will be resampled.");
    }

    ref<Fbo> pFbo = Fbo::create(mpDevice);
    pFbo->attachColorTarget(pDst, 0);

    // Run luminance pass if auto exposure is enabled
    if (mAutoExposure)
    {
        createLuminanceFbo(pSrc);

        auto var = mpLuminancePass->getRootVar();
        var["gColorTex"] = pSrc;
        var["gColorSampler"] = mpLinearSampler;

        mpLuminancePass->execute(pRenderContext, mpLuminanceFbo);
        mpLuminanceFbo->getColorTexture(0)->generateMips(pRenderContext);
    }

    // Run main pass
    if (mRecreateToneMapPass)
    {
        createToneMapPass();
        mUpdateToneMapPass = true;
        mRecreateToneMapPass = false;
    }

    if (mUpdateToneMapPass)
    {
        updateWhiteBalanceTransform();
        updateColorTransform();

        ToneMapperParams params;
        params.whiteScale = mWhiteScale;
        params.whiteMaxLuminance = mWhiteMaxLuminance;
        params.colorTransform = float3x4(mColorTransform);
        mpToneMapPass->getRootVar()["PerImageCB"]["gParams"].setBlob(&params, sizeof(params));
        mUpdateToneMapPass = false;
    }

    auto var = mpToneMapPass->getRootVar();
    var["gColorTex"] = pSrc;
    var["gColorSampler"] = mpPointSampler;

    if (mAutoExposure)
    {
        var["gLuminanceTexSampler"] = mpLinearSampler;
        var["gLuminanceTex"] = mpLuminanceFbo->getColorTexture(0);
    }