Rakarake/glonkers
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improvement

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Rakarake 2025-12-27 20:49:41 +01:00
parent 5ae0450e28
commit 98f7c29b44
1 changed files with 12 additions and 6 deletions
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18
fragment.glsl
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@ -71,6 +71,12 @@ float perlin_noise(vec2 uv, vec2 vector_offset, float angle_offset) {
return val /2.0 + 0.5; return val /2.0 + 0.5;
} }
float limit(float val, float min, float max) {
float out_val = clamp(val, min, max);
out_val -= min;
out_val *= (1.0 - (max - min)) / (max - min);
return out_val;
}
void main() { void main() {
vec2 uv = gl_FragCoord.xy / WindowSize; vec2 uv = gl_FragCoord.xy / WindowSize;
@ -82,11 +88,11 @@ void main() {
uv += 100.0; uv += 100.0;
//uv.x += time / 20.0; //uv.x += time / 20.0;
float out_val = perlin_noise(uv, vec2(0.0, 0.0), time / 1.0); float out_val = perlin_noise(uv, vec2(0.0, 0.0), time / 1.0);
float min = 0.42; float min = 0.42 + sin(time)/8.0;
float max = 0.58; float max = 0.58 + sin(time)/8.0;
out_val = out_val + sin(uv.y + time) / 15.2; //float min = 0.42;
out_val = clamp(out_val, min, max); //float max = 0.58;
out_val -= min; //out_val = out_val + sin(uv.y + time) / 15.2;
out_val *= (1.0 - (max - min)) / (max - min); out_val = limit(out_val, min, max);
color = vec4(out_val, 0.4, 0.8, 1.0); color = vec4(out_val, 0.4, 0.8, 1.0);
} }