58 lines
1.3 KiB
Plaintext
58 lines
1.3 KiB
Plaintext
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#define MATCAP
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uniform vec3 diffuse;
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uniform float opacity;
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uniform sampler2D matcap;
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varying vec3 vViewPosition;
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#ifndef FLAT_SHADED
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varying vec3 vNormal;
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#endif
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#include <common>
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#include <uv_pars_fragment>
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#include <map_pars_fragment>
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#include <alphamap_pars_fragment>
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#include <fog_pars_fragment>
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#include <bumpmap_pars_fragment>
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#include <normalmap_pars_fragment>
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#include <logdepthbuf_pars_fragment>
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#include <clipping_planes_pars_fragment>
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void main() {
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#include <clipping_planes_fragment>
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vec4 diffuseColor = vec4( diffuse, opacity );
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#include <logdepthbuf_fragment>
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#include <map_fragment>
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#include <alphamap_fragment>
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#include <alphatest_fragment>
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#include <normal_fragment_begin>
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#include <normal_fragment_maps>
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vec3 viewDir = normalize( vViewPosition );
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vec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );
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vec3 y = cross( viewDir, x );
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vec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5; // 0.495 to remove artifacts caused by undersized matcap disks
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vec4 matcapColor = texture2D( matcap, uv );
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matcapColor = matcapTexelToLinear( matcapColor );
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vec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;
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gl_FragColor = vec4( outgoingLight, diffuseColor.a );
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#include <premultiplied_alpha_fragment>
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#include <tonemapping_fragment>
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#include <encodings_fragment>
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#include <fog_fragment>
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}
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