35 lines
1.7 KiB
C++
35 lines
1.7 KiB
C++
char volume_vert[] = "#version 110\n"
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"varying vec4 cameraPos;\n"
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"varying vec4 vertexPos;\n"
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"varying vec3 lightDirection;\n"
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"varying mat4 texgen;\n"
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"varying vec4 baseColor;\n"
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"\n"
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"void main(void)\n"
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"{\n"
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" gl_Position = ftransform();\n"
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"\n"
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" cameraPos = gl_ModelViewMatrixInverse * vec4(0,0,0,1);\n"
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" vertexPos = gl_Vertex;\n"
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" baseColor = gl_FrontMaterial.diffuse;\n"
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"\n"
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" vec4 lightPosition = gl_ModelViewMatrixInverse * gl_LightSource[0].position;\n"
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" if (lightPosition[3]==0.0)\n"
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" {\n"
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" // directional light source\n"
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" lightDirection = -normalize(lightPosition.xyz);\n"
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" }\n"
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" else\n"
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" {\n"
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" // positional light source\n"
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" lightDirection = normalize((lightPosition-vertexPos).xyz);\n"
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" }\n"
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"\n"
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"\n"
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" texgen = mat4(gl_ObjectPlaneS[0], \n"
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" gl_ObjectPlaneT[0],\n"
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" gl_ObjectPlaneR[0],\n"
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" gl_ObjectPlaneQ[0]);\n"
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"}\n"
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"\n";
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