+ | Accumulation texture

shaders/random.glsl

@@ -0,0 +1,28 @@
+
+float seed = 1.0;
+float getRandom(vec2 uv, int frameCount)
+{
+    float seed = dot(uv, vec2(12.9898, 78.233)) + float(frameCount);
+    return fract(sin(seed) * 43758.5453);
+}
+vec3 randomVec3(vec2 uv, int frameCount)
+{
+    return vec3(
+        getRandom(uv + vec2(0.1, 0.1), frameCount),
+        getRandom(uv + vec2(0.2, 0.2), frameCount),
+        getRandom(uv + vec2(0.3, 0.3), frameCount)
+    );
+}
+
+vec3 randomVec3Mixed(vec2 uv, int frameCount, float min_val, float max_val)
+{
+    float randomX = getRandom(uv + vec2(0.1, 0.1), frameCount);
+    float randomY = getRandom(uv + vec2(0.2, 0.2), frameCount);
+    float randomZ = getRandom(uv + vec2(0.3, 0.3), frameCount);
+    
+    return vec3(
+        mix(min_val, max_val, randomX),
+        mix(min_val, max_val, randomY),
+        mix(min_val, max_val, randomZ)
+    );
+}