From 1bfd917424a39e704e767758e2ec8011b62ca033 Mon Sep 17 00:00:00 2001
From: Jonathan Stone <jstone@lucasfilm.com>
Date: Tue, 26 Dec 2023 15:18:47 -0800
Subject: [PATCH] Update documentation

---
 libraries/pbrlib/genglsl/lib/mx_prefilter_environment.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/pbrlib/genglsl/lib/mx_prefilter_environment.glsl b/libraries/pbrlib/genglsl/lib/mx_prefilter_environment.glsl
index 06dff50118..62a8c953fe 100644
--- a/libraries/pbrlib/genglsl/lib/mx_prefilter_environment.glsl
+++ b/libraries/pbrlib/genglsl/lib/mx_prefilter_environment.glsl
@@ -25,9 +25,9 @@ vec3 mx_latlong_map_projection_inverse(vec2 uv)
     return vec3(x, y, z);
 }
 
+// The inverse of mx_latlong_alpha_to_lod.
 float mx_latlong_lod_to_alpha(float lod)
 {
-    // Compute alpha from the input mip level.
     float lodBias = lod / float($envRadianceMips);
     return (lodBias < 0.5) ? mx_square(lodBias) : 2.0 * (lodBias - 0.375);
 }