Fixing isPOT function for value == 0 case.

corbanbrook · Mar 10, 2011 · 170d951 · 170d951
1 parent 9c654c9
commit 170d951
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/webgl-2d.js b/webgl-2d.js
@@ -50,7 +50,7 @@
   var M_HALF_PI = M_PI / 2.0;
 
   function isPOT(value) {
-    return ((value - 1) & value) === 0;
+    return value > 0 && ((value - 1) & value) === 0;
   }
 
   var vec3 = {