export const vertex = /* glsl */`
#define NORMAL
#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )
varying vec3 vViewPosition;
#endif
#include <common>
#include <batching_pars_vertex>
#include <uv_pars_vertex>
#include <displacementmap_pars_vertex>
#include <normal_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 <batching_vertex>
#include <beginnormal_vertex>
#include <morphinstance_vertex>
#include <morphnormal_vertex>
#include <skinbase_vertex>
#include <skinnormal_vertex>
#include <defaultnormal_vertex>
#include <normal_vertex>
#include <begin_vertex>
#include <morphtarget_vertex>
#include <skinning_vertex>
#include <displacementmap_vertex>
#include <project_vertex>
#include <logdepthbuf_vertex>
#include <clipping_planes_vertex>
#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )
vViewPosition = - mvPosition.xyz;
#endif
}
`;
export const fragment = /* glsl */`
#define NORMAL
uniform float opacity;
#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )
varying vec3 vViewPosition;
#endif
#include <packing>
#include <uv_pars_fragment>
#include <normal_pars_fragment>
#include <bumpmap_pars_fragment>
#include <normalmap_pars_fragment>
#include <logdepthbuf_pars_fragment>
#include <clipping_planes_pars_fragment>
void main() {
vec4 diffuseColor = vec4( 0.0, 0.0, 0.0, opacity );
#include <clipping_planes_fragment>
#include <logdepthbuf_fragment>
#include <normal_fragment_begin>
#include <normal_fragment_maps>
gl_FragColor = vec4( packNormalToRGB( normal ), diffuseColor.a );
#ifdef OPAQUE
gl_FragColor.a = 1.0;
#endif
}
`;