66 lines
1.8 KiB
GLSL
Executable file
66 lines
1.8 KiB
GLSL
Executable file
// -*- mode: C; -*-
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// RANDOM BUILDINGS for the UBERSHADER vertex shader
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// Licence: GPL v2
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// © Emilian Huminiuc and Vivian Meazza 2011
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#version 120
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varying vec4 diffuseColor;
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varying vec3 VBinormal;
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varying vec3 VNormal;
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varying vec3 VTangent;
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varying vec3 rawpos;
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varying vec3 eyeVec;
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uniform int refl_dynamic;
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uniform int nmap_enabled;
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uniform int shader_qual;
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uniform int rembrandt_enabled;
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void main(void)
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{
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float sr = sin(6.28 * gl_Color.a);
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float cr = cos(6.28 * gl_Color.a);
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rawpos = gl_Vertex.xyz;
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// Rotation of the object and movement into position
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rawpos.xy = vec2(dot(rawpos.xy, vec2(cr, sr)), dot(rawpos.xy, vec2(-sr, cr)));
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rawpos = rawpos + gl_Color.xyz;
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vec4 ecPosition = gl_ModelViewMatrix * vec4(rawpos.xyz, 1.0);
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eyeVec = ecPosition.xyz;
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// Rotate the normal.
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vec3 normal = gl_Normal;
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normal.xy = vec2(dot(normal.xy, vec2(cr, sr)), dot(normal.xy, vec2(-sr, cr)));
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VNormal = normalize(gl_NormalMatrix * normal);
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vec3 n = normalize(normal);
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vec3 c1 = cross(n, vec3(0.0,0.0,1.0));
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vec3 c2 = cross(n, vec3(0.0,1.0,0.0));
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VTangent = c1;
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if(length(c2)>length(c1)){
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VTangent = c2;
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}
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VBinormal = cross(n, VTangent);
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VTangent = normalize(gl_NormalMatrix * -VTangent);
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VBinormal = normalize(gl_NormalMatrix * VBinormal);
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// Force no alpha on random buildings
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diffuseColor = vec4(gl_FrontMaterial.diffuse.rgb,1.0);
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if(rembrandt_enabled < 1){
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gl_FrontColor = gl_FrontMaterial.emission + vec4(1.0)
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* (gl_LightModel.ambient + gl_LightSource[0].ambient);
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} else {
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gl_FrontColor = vec4(1.0);
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}
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gl_Position = gl_ModelViewProjectionMatrix * vec4(rawpos,1.0);
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gl_ClipVertex = ecPosition;
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gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
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}
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