9 lines
259 B
GLSL
9 lines
259 B
GLSL
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extern Image displacement_map;
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vec4 effect(vec4 color, Image texture, vec2 tc, vec2 pc) {
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vec4 dp = Texel(displacement_map, tc);
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vec2 p = tc;
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p.x += (dp.r*2.0 - 1.0)*0.025*dp.a;
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p.y += (dp.g*2.0 - 1.0)*0.025*dp.a;
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return color*Texel(texture, p);
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}
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