basic: added nightsky; utilities: added random

2017-06-08 22:00:05 -04:00
parent 0ef75170b3
commit 6a7e322957
2 changed files with 35 additions and 0 deletions
--- a/utilities/random.glsl
+++ b/utilities/random.glsl
@@ -0,0 +1,5 @@
+float random(vec2 st) {
+    return fract(sin(dot(st.xy,
+                         vec2(12.9898,78.233)))*
+        43758.5453123);
+}