37 lines
813 B
Forth
37 lines
813 B
Forth
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varying vec4 color;
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varying vec2 ambientOcclusionCoord;
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//varying vec2 detailCoord;
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varying vec3 fogDensity;
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uniform sampler2D ambientOcclusionTexture;
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uniform sampler2D detailTexture;
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uniform vec3 fogColor;
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vec3 EvaluateSunLight();
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vec3 EvaluateAmbientLight(float detailAmbientOcclusion);
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void main() {
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// color is linearized
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gl_FragColor = color;
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gl_FragColor.w = 1.;
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vec3 shading = vec3(color.w);
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// FIXME: prepare for shadow?
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shading *= EvaluateSunLight();
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vec3 ao = texture2D(ambientOcclusionTexture, ambientOcclusionCoord).xyz;
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shading += EvaluateAmbientLight(ao.x);
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gl_FragColor.xyz *= shading;
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//gl_FragColor.xyz *= texture2D(detailTexture, detailCoord).xyz * 2.;
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gl_FragColor.xyz = mix(gl_FragColor.xyz, fogColor, fogDensity);
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gl_FragColor.xyz = sqrt(gl_FragColor.xyz);
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}
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