Fix noise precision issues

vanruesc · vanruesc · commit c7ef0e798cb9 · 2026-02-08T19:05:27.000+01:00
diff --git a/src/effects/shaders/noise.frag b/src/effects/shaders/noise.frag
@@ -2,19 +2,19 @@ uniform float page;
 
 vec4 mainImage(const in vec4 inputColor, const in vec2 uv, const in GData gData) {
 
-	vec2 p = uv * (SEED + page);
+	vec3 p = vec3(uv, SEED + page);
 
 	#ifdef RGB
 
-		vec2 pR = p;
-		vec2 pG = vec2(p.x + 1.0, p.y);
-		vec2 pB = vec2(p.x, p.y + 1.0);
+		vec3 pR = p;
+		vec3 pG = vec3(p.x + 1.0, p.y, p.z);
+		vec3 pB = vec3(p.x, p.y + 1.0, p.z);
 
-		vec3 noise = vec3(rand(pR), rand(pG), rand(pB));
+		vec3 noise = vec3(urand(pR), urand(pG), urand(pB));
 
 	#else
 
-		vec3 noise = vec3(rand(p));
+		vec3 noise = vec3(urand(p));
 
 	#endif
 
