export default /* glsl */` #define NORMAL uniform float opacity; #if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP ) varying vec3 vViewPosition; #endif #ifndef FLAT_SHADED varying vec3 vNormal; #ifdef USE_TANGENT varying vec3 vTangent; varying vec3 vBitangent; #endif #endif #include #include #include #include #include #include void main() { #include #include #include #include gl_FragColor = vec4( packNormalToRGB( normal ), opacity ); } `;