cecilkorik
12cb7128f7
refactored as needed to make roc work as a shared library, without any stupid import hacks
25 lines
No EOL
706 B
GLSL
25 lines
No EOL
706 B
GLSL
uniform sampler2D DepthTexture;
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uniform sampler2D ShadowTexture;
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varying vec2 DepthTexCoord;
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varying vec3 ShadowNear;
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varying vec3 ShadowDir;
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const vec3 shadowColor = vec3(0.0);
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void main()
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{
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// read from DepthTexture
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// (depth is stored in texture's alpha component)
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float cameraDepth = texture2D(DepthTexture, DepthTexCoord).a;
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vec3 shadowPos = (cameraDepth * ShadowDir) + ShadowNear;
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float l = dot(shadowPos.yz, shadowPos.yz);
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float d = shadowPos.x;
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// k = shadow density: 0=opaque, 1=transparent
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// (use texture's red component as the density)
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float k = texture2D(ShadowTexture, vec2(l, d)).r;
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gl_FragColor = vec4(shadowColor, k);
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} |