From b9911da4c799984c639102e5dcae133bd52ce378 Mon Sep 17 00:00:00 2001
From: Bo Svensson <90132211+bosvensson1@users.noreply.github.com>
Date: Sun, 31 Oct 2021 12:03:42 +0000
Subject: [PATCH] applies lightMask (#3201)

With this PR we apply `lightMask` to a `Transform` node we create specifically for a light. This mask will allow us to stop traversing such nodes sooner and avoid costly processing associated with `Transform` nodes in the cull visitor.
---
 components/sceneutil/lightutil.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/sceneutil/lightutil.cpp b/components/sceneutil/lightutil.cpp
index 6a1a1376ec..2a5a945558 100644
--- a/components/sceneutil/lightutil.cpp
+++ b/components/sceneutil/lightutil.cpp
@@ -79,6 +79,7 @@ namespace SceneUtil
             // PositionAttitudeTransform seems to be slightly faster than MatrixTransform
             osg::ref_ptr<SceneUtil::PositionAttitudeTransform> trans(new SceneUtil::PositionAttitudeTransform);
             trans->setPosition(computeBound.getBoundingBox().center());
+            trans->setNodeMask(lightMask);
 
             node->addChild(trans);