Method renderFrame

Source/Falcor/Core/SampleApp.cpp:462–534

}

void SampleApp::renderFrame()
{
    FALCOR_ASSERT(mpDevice);

    // Skip rendering if window is occluded.
    if (mpSwapchain && mpSwapchain->isOccluded())
        return;

    // Check clock exit condition.
    if (mClock.shouldExit())
        shutdown();

    // Handle clock.
    mClock.tick();
    mFrameRate.newFrame();

    RenderContext* pRenderContext = mpDevice->getRenderContext();

    // Render a frame.
    // If the renderer is paused, create a copy of the rendered output and copy that back each frame.
    if (mRendererPaused && mpPausedRenderOutput)
    {
        pRenderContext->blit(mpPausedRenderOutput->getSRV(), mpTargetFBO->getColorTexture(0)->getRTV());
    }
    else
    {
        FALCOR_PROFILE(pRenderContext, "onFrameRender");
        onFrameRender(pRenderContext, mpTargetFBO);

        if (mRendererPaused)
        {
            auto srcTexture = mpTargetFBO->getColorTexture(0);
            mpPausedRenderOutput =
                mpDevice->createTexture2D(srcTexture->getWidth(), srcTexture->getHeight(), srcTexture->getFormat(), 1, 1);
            pRenderContext->copyResource(mpPausedRenderOutput.get(), srcTexture.get());
        }
        else
        {
            mpPausedRenderOutput = nullptr;
        }
    }

    // Render the UI.
    renderUI();

    if (mpPixelZoom)
        mpPixelZoom->render(pRenderContext, mpTargetFBO.get());

#if FALCOR_ENABLE_PROFILER
    mpDevice->getProfiler()->endFrame(pRenderContext);
#endif

    if (mCaptureScreen)
        captureScreen(mpTargetFBO->getColorTexture(0).get());

    // Copy framebuffer to swapchain image.
    if (mpSwapchain)
    {