_begin.replaceAll(
                            'RE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );',
                            /* glsl */ `
                            RE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );
                            RE_Direct_Scattering(directLight, vAoMapUv, geometryPosition, geometryNormal, geometryViewDir, geometryClearc