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110 lines
2.6 KiB
GLSL
110 lines
2.6 KiB
GLSL
#version 120
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#if @diffuseMap
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varying vec2 diffuseMapUV;
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#endif
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#if @darkMap
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varying vec2 darkMapUV;
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#endif
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#if @detailMap
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varying vec2 detailMapUV;
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#endif
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#if @decalMap
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varying vec2 decalMapUV;
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#endif
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#if @emissiveMap
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varying vec2 emissiveMapUV;
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#endif
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#if @normalMap
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varying vec2 normalMapUV;
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varying vec4 passTangent;
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#endif
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#if @envMap
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varying vec2 envMapUV;
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#endif
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#if @specularMap
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varying vec2 specularMapUV;
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#endif
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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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vec3 viewNormal = normalize((gl_NormalMatrix * gl_Normal).xyz);
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#if @envMap
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vec3 viewVec = normalize(viewPos.xyz);
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vec3 r = reflect( viewVec, viewNormal );
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float m = 2.0 * sqrt( r.x*r.x + r.y*r.y + (r.z+1.0)*(r.z+1.0) );
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envMapUV = vec2(r.x/m + 0.5, r.y/m + 0.5);
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#endif
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#if @diffuseMap
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diffuseMapUV = (gl_TextureMatrix[@diffuseMapUV] * gl_MultiTexCoord@diffuseMapUV).xy;
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#endif
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#if @darkMap
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darkMapUV = (gl_TextureMatrix[@darkMapUV] * gl_MultiTexCoord@darkMapUV).xy;
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#endif
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#if @detailMap
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detailMapUV = (gl_TextureMatrix[@detailMapUV] * gl_MultiTexCoord@detailMapUV).xy;
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#endif
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#if @decalMap
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decalMapUV = (gl_TextureMatrix[@decalMapUV] * gl_MultiTexCoord@decalMapUV).xy;
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#endif
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#if @emissiveMap
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emissiveMapUV = (gl_TextureMatrix[@emissiveMapUV] * gl_MultiTexCoord@emissiveMapUV).xy;
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#endif
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#if @normalMap
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normalMapUV = (gl_TextureMatrix[@normalMapUV] * gl_MultiTexCoord@normalMapUV).xy;
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passTangent = gl_MultiTexCoord7.xyzw;
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#endif
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#if @specularMap
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specularMapUV = (gl_TextureMatrix[@specularMapUV] * gl_MultiTexCoord@specularMapUV).xy;
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#endif
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#if !PER_PIXEL_LIGHTING
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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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passViewPos = viewPos.xyz;
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passNormal = gl_Normal.xyz;
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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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