Add static flag to limit fallback cubemap to metallic

1 files changed, 3 insertions, 3 deletions

diff --git a/math.cginc b/math.cginc
index bccb206..6c48a2c 100644
--- a/math.cginc
+++ b/math.cginc
@@ -16,10 +16,10 @@ float pow5(float x)
 }

 

 float wrapNoL(float NoL, float k) {

-#if 0

+#if 1

 		// https://www.iro.umontreal.ca/~derek/files/jgt_wrap_final.pdf

     return pow(max(1E-4, (NoL + k) / (1 + k)), 1 + k);

-#else 

+#else

     float k_sq = k * k;

     float b = max(0, lerp(NoL, 1.0, k));

     float p = -6.0 * k_sq + 5.0 * k + 1.0;

@@ -27,7 +27,7 @@ float wrapNoL(float NoL, float k) {
     float F = pow(b, p);

 

     // Approximate integral of NoL with respect to theta

-    float I = 0.7856 * k_sq - 0.2148 * k + 1.0;

+    float I = (0.7856 * k_sq - 0.2148 * k) + 1.0;

 

     float G = F / max(I, 1E-6);