Add ability to swap decal slots

Also:

* Rim lighting can disable texture normals
* Frame counter is now hidden behind a checkbox, and unconditionally
  overrides audiolink

1 files changed, 0 insertions, 8 deletions

diff --git a/math.cginc b/math.cginc
index 2a384fb..80fa9ab 100644
--- a/math.cginc
+++ b/math.cginc
@@ -149,20 +149,12 @@ float rand(uint seed) {
 }
 
 // Generate a random number on [0, 1].
-/*
 float rand2(float2 p)
 {
   return frac(sin(dot(p,
           float2(12.9898, 78.233)))
       * 43758.5453123);
 }
-*/
-float rand2(float2 p)
-{
-    float3 p3  = frac(float3(p.xyx) * float3(.1031, .1030, .0973));
-    p3 += dot(p3, p3.yzx + 33.33);
-    return frac((p3.x + p3.y) * p3.z);
-}
 
 // Generate a random number on [0, 1].
 float rand3(float3 p)