sRGBEncoding in not working in THREE.EffectComposer

Question

I'm trying to do post processing in threejs scene here I'm using EffectComposer for doing it but im not able to enble sRGBEncoding in renderTarget.

const renderTarget = new THREE.WebGLRenderTarget(
    sizes.width,
    sizes.height,
    {
        minFilter:THREE.LinearFilter,
        magFilter:THREE.LinearFilter,
        format:THREE.RGBAFormat,
        encoding:THREE.sRGBEncoding

    }
)

and my effectComposer is like that

const effectComposer = new EffectComposer(renderer,renderTarget);
effectComposer.setPixelRatio(Math.min(window.devicePixelRatio,2));
effectComposer.setSize(sizes.width,sizes.height)

but sRGBEncoding is not working

Answer 1

When using post processing, use a gamma correction pass at the end of your pass chain. This will ensure a sRGB encoded output:

composer.addPass( new ShaderPass( GammaCorrectionShader ) );

Full example: https://threejs.org/examples/webgl_postprocessing_3dlut