Import
GTAOShader is an addon, and must be imported explicitly, see Installation#Addons.
import { GTAOShader } from 'three/addons/shaders/GTAOShader.js';
Properties
.GTAOBlendShader : Object (inner, constant)
GTAO blend shader. Use by GTAOPass.
.GTAODepthShader : Object (inner, constant)
GTAO depth shader. Use by GTAOPass.
.GTAOShader : ShaderMaterial~Shader (inner, constant)
GTAO shader. Use by GTAOPass.
References: