Jared Miller
e210ebc72d
Replace bit-packed cell flags in the R channel with a direct material ID float pass-through. Food clearing now writes MAT_AIR instead of clearing a bit.
26 lines
708 B
GLSL
26 lines
708 B
GLSL
precision highp float;
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precision highp int;
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in vec2 vUv;
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out vec4 FragColor;
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uniform sampler2D tLastState;
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uniform sampler2D tDiscreteAnts;
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void main() {
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vec4 lastState = texture(tLastState, vUv);
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vec4 discreteAnts = texture(tDiscreteAnts, vUv);
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float materialId = lastState.x;
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float scentToHome = min(SCENT_MAX_PER_CELL, lastState.y + discreteAnts.x);
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float scentToFood = min(SCENT_MAX_PER_CELL, lastState.z + discreteAnts.y);
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float repellent = min(REPELLENT_MAX_PER_CELL, lastState.w);
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// ant picked up food from this cell
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if (discreteAnts.z == 1.) {
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materialId = float(MAT_AIR);
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}
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FragColor = vec4(materialId, scentToHome, scentToFood, repellent);
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}
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