40 lines
865 B
Text
40 lines
865 B
Text
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!!permu BUMP
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!!permu SKELETAL
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//light pre-pass rendering (defered lighting)
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//this is the initial pass, that draws the surface normals and depth to the initial colour buffer
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varying vec3 norm, tang, bitang;
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#if defined(BUMP)
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varying vec2 tc;
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#endif
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#ifdef VERTEX_SHADER
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#include "sys/skeletal.h"
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attribute vec2 v_texcoord;
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void main()
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{
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#if defined(BUMP)
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gl_Position = skeletaltransform_nst(norm, tang, bitang);
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tc = v_texcoord;
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#else
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gl_Position = skeletaltransform_n(norm);
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#endif
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}
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#endif
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#ifdef FRAGMENT_SHADER
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#if defined(BUMP)
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uniform sampler2D s_t0;
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#endif
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void main()
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{
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vec3 onorm;
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#if defined(BUMP)
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vec3 bm = 2.0*texture2D(s_t0, tc).xyz - 1.0;
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onorm = normalize(bm.x * tang + bm.y * bitang + bm.z * norm);
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#else
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onorm = norm;
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#endif
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gl_FragColor = vec4(onorm.xyz, gl_FragCoord.z / gl_FragCoord.w);
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}
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#endif
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