30 lines
No EOL
941 B
GLSL
30 lines
No EOL
941 B
GLSL
#ifndef INCLUDE_CLOUD_COORD
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#define INCLUDE_CLOUD_COORD
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const float cloudNarrowness = 0.05;
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// Thanks to SixthSurge
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vec2 GetRoundedCloudCoord(vec2 pos, float cloudRoundness) { // cloudRoundness is meant to be 0.125 for clouds and 0.35 for cloud shadows
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vec2 coord = pos.xy + 0.5;
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vec2 signCoord = sign(coord);
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coord = abs(coord) + 1.0;
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vec2 i, f = modf(coord, i);
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f = smoothstep(0.5 - cloudRoundness, 0.5 + cloudRoundness, f);
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coord = i + f;
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return (coord - 0.5) * signCoord / 256.0;
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}
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vec3 ModifyTracePos(vec3 tracePos, int cloudAltitude) {
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#if CLOUD_SPEED_MULT == 100
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float wind = syncedTime;
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#else
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#define CLOUD_SPEED_MULT_M CLOUD_SPEED_MULT * 0.01
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float wind = frameTimeCounter * CLOUD_SPEED_MULT_M;
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#endif
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tracePos.x += wind;
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tracePos.z += cloudAltitude * 64.0;
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tracePos.xz *= cloudNarrowness;
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return tracePos.xyz;
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}
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#endif |