node_modules/three/src/renderers/shaders/ShaderLib/meshmatcap_vert.glsl.js

export default /* glsl */`
#define MATCAP

varying vec3 vViewPosition;

#ifndef FLAT_SHADED

	varying vec3 vNormal;

#endif

#include <common>
#include <uv_pars_vertex>
#include <displacementmap_pars_vertex>
#include <fog_pars_vertex>
#include <morphtarget_pars_vertex>
#include <skinning_pars_vertex>

#include <logdepthbuf_pars_vertex>
#include <clipping_planes_pars_vertex>

void main() {

	#include <uv_vertex>

	#include <beginnormal_vertex>
	#include <morphnormal_vertex>
	#include <skinbase_vertex>
	#include <skinnormal_vertex>
	#include <defaultnormal_vertex>

	#ifndef FLAT_SHADED // Normal computed with derivatives when FLAT_SHADED

		vNormal = normalize( transformedNormal );

	#endif

	#include <begin_vertex>
	#include <morphtarget_vertex>
	#include <skinning_vertex>
	#include <displacementmap_vertex>
	#include <project_vertex>

	#include <logdepthbuf_vertex>
	#include <clipping_planes_vertex>
	#include <fog_vertex>

	vViewPosition = - mvPosition.xyz;

}
`;