From 82882d77c41edc3fc3a962ab95ad19fc99604228 Mon Sep 17 00:00:00 2001
From: Ptolemy <ptolemy@lindenlab.com>
Date: Mon, 29 Jun 2020 12:00:42 -0700
Subject: DRTVWR-497: Cleanup: Document algorithm name for normal
 packing/unpacking.

---
 indra/newview/app_settings/shaders/class1/environment/encodeNormF.glsl | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'indra/newview/app_settings/shaders/class1/environment')

diff --git a/indra/newview/app_settings/shaders/class1/environment/encodeNormF.glsl b/indra/newview/app_settings/shaders/class1/environment/encodeNormF.glsl
index 50e781fa78..6cd2445522 100644
--- a/indra/newview/app_settings/shaders/class1/environment/encodeNormF.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/encodeNormF.glsl
@@ -23,6 +23,9 @@
  * $/LicenseInfo$
  */
 
+// Lambert Azimuthal Equal-Area projection
+// See: https://aras-p.info/texts/CompactNormalStorage.html
+// Also see: A_bit_more_deferred_-_CryEngine3.ppt
 vec2 encode_normal(vec3 n)
 {
 	float f = sqrt(8 * n.z + 8);
-- 
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