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27 lines
873 B
GLSL
27 lines
873 B
GLSL
#version 120
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//
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// diffuse.frag
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// fragment shader
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//
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// Created by Andrzej Kapolka on 8/14/13.
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// Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
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//
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// the texture containing the original color
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uniform sampler2D originalTexture;
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// the texture containing the diffused color
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uniform sampler2D diffusedTexture;
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// the scale of diffusion
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uniform vec2 diffusionScale;
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void main(void) {
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vec2 minExtents = gl_TexCoord[0].st + diffusionScale * vec2(-1.5, -1.5);
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vec2 maxExtents = gl_TexCoord[0].st + diffusionScale * vec2(1.5, 1.5);
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gl_FragColor = (texture2D(diffusedTexture, minExtents) +
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texture2D(diffusedTexture, vec2(maxExtents.s, minExtents.t)) +
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texture2D(diffusedTexture, vec2(minExtents.s, maxExtents.t)) +
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texture2D(diffusedTexture, maxExtents)) * 0.235 + texture2D(originalTexture, gl_TexCoord[0].st) * 0.1;
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}
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