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-rw-r--r--progs/glsl/shadowtex.frag21
1 files changed, 0 insertions, 21 deletions
diff --git a/progs/glsl/shadowtex.frag b/progs/glsl/shadowtex.frag
deleted file mode 100644
index a6a80da47f..0000000000
--- a/progs/glsl/shadowtex.frag
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-// Fragment shader for 2D texture with shadow attenuation
-// Brian Paul
-
-
-uniform sampler2D tex2d;
-uniform vec3 lightPos;
-
-void main()
-{
- // XXX should compute this from lightPos
- vec2 shadowCenter = vec2(-0.25, -0.25);
-
- // d = distance from center
- float d = distance(gl_TexCoord[0].xy, shadowCenter);
-
- // attenuate and clamp
- d = clamp(d * d * d, 0.0, 2.0);
-
- // modulate texture by d for shadow effect
- gl_FragColor = d * texture2D(tex2d, gl_TexCoord[0].xy, 0.0);
-}