three/src/renderers/shaders/ShaderLib/normal_frag.glsl.js

JavaScript 3D library

export default /* glsl */`
#define NORMAL

uniform float opacity;

#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || ( defined( USE_NORMALMAP ) && ! defined( OBJECTSPACE_NORMALMAP ) )

	varying vec3 vViewPosition;

#endif

#ifndef FLAT_SHADED

	varying vec3 vNormal;

	#ifdef USE_TANGENT

		varying vec3 vTangent;
		varying vec3 vBitangent;

	#endif

#endif

#include <packing>
#include <uv_pars_fragment>
#include <bumpmap_pars_fragment>
#include <normalmap_pars_fragment>
#include <logdepthbuf_pars_fragment>

void main() {

	#include <logdepthbuf_fragment>
	#include <normal_fragment_begin>
	#include <normal_fragment_maps>

	gl_FragColor = vec4( packNormalToRGB( normal ), opacity );

}
`;