From 312d7acc39b4dc33edd3fdc3d3d77d373b5cb198 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Tue, 25 Jun 2024 19:35:35 -0700
Subject: Add glitter option to rim lighting

Now rim lighting can illuminate the avatar as if it has glitter on it.

Also deprecate glitter seed, since it was unused.
---
 math.cginc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'math.cginc')

diff --git a/math.cginc b/math.cginc
index 747c5c2..59e6fa0 100644
--- a/math.cginc
+++ b/math.cginc
@@ -51,7 +51,9 @@ float rand(uint seed) {
 // Generate a random number on [0, 1].
 float rand2(float2 p)
 {
-  return glsl_mod(sin(dot(p, float2(561.0, 885.0))) * 776.2, 1.0);
+  return frac(sin(dot(p,
+          float2(12.9898, 78.233)))
+      * 43758.5453123);
 }
 
 // Generate a random number on [0, 1].
-- 
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