From 7cdf39f51b47553af89c3de5b86d33ded4b5cdd2 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Fri, 8 Aug 2025 19:14:38 -0700
Subject: Add cloth lobe & IBL DFG LUTs

- add monte carlo integrator to produce the luts
- fix layer energy integration; should be multiplicative, not additive
---
 math.cginc | 1 +
 1 file changed, 1 insertion(+)

(limited to 'math.cginc')

diff --git a/math.cginc b/math.cginc
index 0d59121..af71fc6 100644
--- a/math.cginc
+++ b/math.cginc
@@ -3,6 +3,7 @@
 
 #define PI 3.14159265358979f
 #define RCP_PI (1.0f / PI)
+#define TAU (2.0f * PI)
 
 float sin_noise_3d(float3 uvw) {
   return sin(uvw[0]) * sin(uvw[1]) * sin(uvw[2]);
-- 
cgit v1.2.3