Import
BleachBypassShader is an addon, and must be imported explicitly, see Installation#Addons.
import { BleachBypassShader } from 'three/addons/shaders/BleachBypassShader.js';Properties
.BleachBypassShader : ShaderMaterial~Shader (inner, constant)
Bleach bypass shader [http://en.wikipedia.org/wiki/Bleach_bypass] based on Nvidia Shader library.