69 lines
1.4 KiB
GLSL
69 lines
1.4 KiB
GLSL
/**
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* @file avatarAlphaF.glsl
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*
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* Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
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* $License$
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*/
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uniform sampler2D diffuseMap;
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uniform sampler2DShadow shadowMap0;
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uniform sampler2DShadow shadowMap1;
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uniform sampler2DShadow shadowMap2;
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uniform sampler2DShadow shadowMap3;
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uniform sampler2D noiseMap;
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uniform mat4 shadow_matrix[4];
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uniform vec4 shadow_clip;
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vec3 atmosLighting(vec3 light);
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vec3 scaleSoftClip(vec3 light);
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varying vec3 vary_ambient;
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varying vec3 vary_directional;
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varying vec4 vary_position;
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varying vec3 vary_normal;
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void main()
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{
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float shadow = 1.0;
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vec4 pos = vary_position;
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vec3 norm = normalize(vary_normal);
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vec3 nz = texture2D(noiseMap, gl_FragCoord.xy/128.0).xyz;
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if (pos.z > -shadow_clip.w)
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{
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if (pos.z < -shadow_clip.z)
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{
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vec4 lpos = shadow_matrix[3]*pos;
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shadow = shadow2DProj(shadowMap3, lpos).x;
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}
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else if (pos.z < -shadow_clip.y)
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{
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vec4 lpos = shadow_matrix[2]*pos;
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shadow = shadow2DProj(shadowMap2, lpos).x;
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}
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else if (pos.z < -shadow_clip.x)
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{
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vec4 lpos = shadow_matrix[1]*pos;
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shadow = shadow2DProj(shadowMap1, lpos).x;
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}
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else
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{
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vec4 lpos = shadow_matrix[0]*pos;
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shadow = shadow2DProj(shadowMap0, lpos).x;
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}
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}
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vec4 col = vec4(vary_ambient + vary_directional*shadow, gl_Color.a);
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vec4 color = texture2D(diffuseMap, gl_TexCoord[0].xy) * col;
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color.rgb = atmosLighting(color.rgb);
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color.rgb = scaleSoftClip(color.rgb);
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gl_FragColor = color;
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}
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