Lighting problem while using SSAA antialiasing

I’m using SSAA unbiased example from https://threejs.org/examples/?q=ssaa#webgl_postprocessing_ssaa_unbiased

SSAAx4
noSSAA

Any idea how could I fix the lighting while using SSAA ?

You might introduce some dithering to avoid the color banding artifacts. But I’m not sure how. Maybe as a additional post processing pass…