From 690f824533db02ecf9ac7e2a5672c0c84c5d1c1d Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Wed, 25 Dec 2024 20:30:14 -0800
Subject: Tweak clearcoat

---
 math.cginc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'math.cginc')

diff --git a/math.cginc b/math.cginc
index 41d9987..2a384fb 100644
--- a/math.cginc
+++ b/math.cginc
@@ -300,5 +300,12 @@ uint gcd(uint a, uint b)
     return 1;
 }
 
+float wrapNoL(float NoL, float factor) {
+    // Apply wrapped lighting correction
+		// https://www.iro.umontreal.ca/~derek/files/jgt_wrap_final.pdf
+    //float4 wrapped = (NoL + 1) * (NoL + 1) * .25;
+    return pow(max(1E-4, (NoL + factor) / (1 + factor)), 1 + factor);
+}
+
 #endif  // __MATH_INC
 
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