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44 lines
1.2 KiB
GLSL
44 lines
1.2 KiB
GLSL
#version 120
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varying vec2 uv;
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varying float depth;
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#define PER_PIXEL_LIGHTING (@normalMap || @forcePPL)
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#if !PER_PIXEL_LIGHTING
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varying vec4 lighting;
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varying vec3 shadowDiffuseLighting;
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#else
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varying vec4 passColor;
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#endif
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varying vec3 passViewPos;
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varying vec3 passNormal;
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varying vec4 shadowSpaceCoords;
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#include "lighting.glsl"
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void main(void)
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{
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gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
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depth = gl_Position.z;
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vec4 viewPos = (gl_ModelViewMatrix * gl_Vertex);
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gl_ClipVertex = viewPos;
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#if !PER_PIXEL_LIGHTING
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vec3 viewNormal = normalize((gl_NormalMatrix * gl_Normal).xyz);
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lighting = doLighting(viewPos.xyz, viewNormal, gl_Color, shadowDiffuseLighting);
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#else
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passColor = gl_Color;
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#endif
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passNormal = gl_Normal.xyz;
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passViewPos = viewPos.xyz;
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uv = gl_MultiTexCoord0.xy;
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// This matrix has the opposite handedness to the others used here, so multiplication must have the vector to the left. Alternatively it could be transposed after construction, but that's extra work for the GPU just to make the code look a tiny bit cleaner.
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mat4 eyePlaneMat = mat4(gl_EyePlaneS[1], gl_EyePlaneT[1], gl_EyePlaneR[1], gl_EyePlaneQ[1]);
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shadowSpaceCoords = viewPos * eyePlaneMat;
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}
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