From 7af264b4039f06b78133b68e56c03e20b20449e6 Mon Sep 17 00:00:00 2001
From: JGamache-autodesk <56274617+JGamache-autodesk@users.noreply.github.com>
Date: Mon, 28 Oct 2024 20:56:17 -0400
Subject: [PATCH] Coat layer should affect emission in USD translation (#2087)

The standard_surface coat parameters are currently affecting the baseColor of UsdPreviewSurface. It should also affect emission color.
---
 libraries/bxdf/translation/standard_surface_to_usd.mtlx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libraries/bxdf/translation/standard_surface_to_usd.mtlx b/libraries/bxdf/translation/standard_surface_to_usd.mtlx
index 099465e369..51c7d5fc6e 100644
--- a/libraries/bxdf/translation/standard_surface_to_usd.mtlx
+++ b/libraries/bxdf/translation/standard_surface_to_usd.mtlx
@@ -80,10 +80,14 @@
     </dot>
 
     <!-- Emissive -->
-    <multiply name="emissiveColor" type="color3">
+    <multiply name="scaledEmissionColor" type="color3">
       <input name="in1" type="color3" interfacename="emission_color" />
       <input name="in2" type="float" interfacename="emission" />
     </multiply>
+    <multiply name="emissiveColor" type="color3">
+      <input name="in1" type="color3" nodename="scaledEmissionColor" />
+      <input name="in2" type="color3" nodename="coatAttenuation" />
+    </multiply>
 
     <!-- Opacity -->
     <convert name="opacityVector" type="vector3">