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28 lines
752 B
GLSL
28 lines
752 B
GLSL
#version 120
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uniform sampler2D imageIn;
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#define MAX_POSITIONS 100
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uniform vec3 positions[MAX_POSITIONS];
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uniform int positionCount;
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uniform float osg_SimulationTime;
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uniform vec2 offset;
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#include "lib/water/ripples.glsl"
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void main()
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{
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vec2 uv = (gl_FragCoord.xy + offset) / @ripple_map_size;
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vec4 color = texture2D(imageIn, uv);
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float wavesizeMultiplier = getTemporalWaveSizeMultiplier(osg_SimulationTime);
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for (int i = 0; i < positionCount; ++i)
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{
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float wavesize = wavesizeMultiplier * positions[i].z;
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float displace = clamp(2.0 * abs(length((positions[i].xy + offset) - gl_FragCoord.xy) / wavesize - 1.0), 0.0, 1.0);
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color.rg = mix(vec2(-1.0), color.rg, displace);
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}
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gl_FragColor = color;
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}
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