weird: added another iteration of ikeda games; utils: added a perlin noise-like noise function

2017-06-09 18:41:01 -04:00
parent 95f6ab8c6b
commit 478cf7b56a
2 changed files with 46 additions and 0 deletions
--- a/utilities/random.glsl
+++ b/utilities/random.glsl
@@ -3,3 +3,9 @@ float random(vec2 st) {
                         vec2(12.9898,78.233)))*
        43758.5453123);
 }
+
+float noise(float x) {
+  float i = floor(x);
+  float f = fract(x);
+  return mix(rand(i), rand(i + 1.0), smoothstep(0.,1.,f));
+}