From 73c35abc8faa5b95a6d03faed89dafc048d27b9a Mon Sep 17 00:00:00 2001
From: WestLangley <WestLangley@users.noreply.github.com>
Date: Sun, 17 Sep 2023 21:01:43 -0400
Subject: [PATCH] Simplify equation

---
 examples/jsm/exporters/GLTFExporter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/jsm/exporters/GLTFExporter.js b/examples/jsm/exporters/GLTFExporter.js
index 087f91920fa447..eace529d7206fa 100644
--- a/examples/jsm/exporters/GLTFExporter.js
+++ b/examples/jsm/exporters/GLTFExporter.js
@@ -2438,7 +2438,7 @@ class GLTFLightExtension {
 			if ( light.distance > 0 ) lightDef.range = light.distance;
 
 			lightDef.spot = {};
-			lightDef.spot.innerConeAngle = ( light.penumbra - 1.0 ) * light.angle * - 1.0;
+			lightDef.spot.innerConeAngle = ( 1.0 - light.penumbra ) * light.angle;
 			lightDef.spot.outerConeAngle = light.angle;
 
 		}