Normally, tone mapping and color conversion happens automatically just before outputting a pixel to the default (screen) framebuffer. In certain post processing setups this is too late because some effects such as FXAA require e.g. sRGB input. For such scenarios, RenderOutputNode can be used to apply tone mapping and color space conversion at an arbitrary point in the effect chain.

When applying tone mapping and color space conversion manually with this node, you have to set RenderPipeline#outputColorTransform to false.

const postProcessing = new RenderPipeline( renderer );
postProcessing.outputColorTransform = false;

const scenePass = pass( scene, camera );
const outputPass = renderOutput( scenePass );

postProcessing.outputNode = outputPass;
export {}