mirror of
https://github.com/ZDoom/gzdoom.git
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65 lines
1.5 KiB
Text
65 lines
1.5 KiB
Text
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#ifndef SIMPLE // we do not need these for simple shaders
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in vec4 aVertex2;
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out vec4 pixelpos;
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out vec2 glowdist;
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#endif
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#ifdef UNIFORM_VB
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uniform float fakeVB[100];
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#endif
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void main()
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{
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#ifdef UNIFORM_VB
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vec4 vert;
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vec4 tc;
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if (gl_MultiTexCoord0.x >= 100000.0)
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{
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int fakeVI = int(gl_MultiTexCoord0.y)*5;
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vert = gl_Vertex + vec4(fakeVB[fakeVI], fakeVB[fakeVI+1], fakeVB[fakeVI+2], 0.0);
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tc = vec4(fakeVB[fakeVI+3], fakeVB[fakeVI+4], 0.0, 0.0);
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}
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else
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{
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vert = gl_Vertex;
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tc = gl_MultiTexCoord0;
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}
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#else
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#define vert gl_Vertex
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#define tc gl_MultiTexCoord0
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#endif
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#ifndef SIMPLE
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vec4 worldcoord = ModelMatrix * mix(vert, aVertex2, uInterpolationFactor);
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#else
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vec4 worldcoord = ModelMatrix * vert;
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#endif
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vec4 eyeCoordPos = ViewMatrix * worldcoord;
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gl_FrontColor = gl_Color;
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#ifndef SIMPLE
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pixelpos.xyz = worldcoord.xyz;
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pixelpos.w = -eyeCoordPos.z/eyeCoordPos.w;
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glowdist.x = -((uGlowTopPlane.w + uGlowTopPlane.x * worldcoord.x + uGlowTopPlane.y * worldcoord.z) * uGlowTopPlane.z) - worldcoord.y;
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glowdist.y = worldcoord.y + ((uGlowBottomPlane.w + uGlowBottomPlane.x * worldcoord.x + uGlowBottomPlane.y * worldcoord.z) * uGlowBottomPlane.z);
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#endif
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#ifdef SPHEREMAP
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vec3 u = normalize(eyeCoordPos.xyz);
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vec3 n = normalize(gl_NormalMatrix * gl_Normal);
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vec3 r = reflect(u, n);
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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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vec2 sst = vec2(r.x/m + 0.5, r.y/m + 0.5);
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gl_TexCoord[0].xy = sst;
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#else
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gl_TexCoord[0] = TextureMatrix * tc;
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#endif
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gl_Position = ProjectionMatrix * eyeCoordPos;
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}
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