From 4f8856f887c3823f84ad1edca75136167b312217 Mon Sep 17 00:00:00 2001
From: Alexei Kotov <alexdobrohotov@yandex.ru>
Date: Thu, 13 Jun 2024 22:24:40 +0300
Subject: [PATCH] Don't let the optimizer mess with collision switch nodes
 (again)

---
 components/nifosg/nifloader.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/components/nifosg/nifloader.cpp b/components/nifosg/nifloader.cpp
index 3245f8c4a2..7c9ff45f1e 100644
--- a/components/nifosg/nifloader.cpp
+++ b/components/nifosg/nifloader.cpp
@@ -741,7 +741,11 @@ namespace NifOsg
             }
 
             if (nifNode->recType == Nif::RC_NiCollisionSwitch && !nifNode->collisionActive())
+            {
                 node->setNodeMask(Loader::getIntersectionDisabledNodeMask());
+                // Don't let the optimizer mess with this node
+                node->setDataVariance(osg::Object::DYNAMIC);
+            }
 
             osg::ref_ptr<SceneUtil::CompositeStateSetUpdater> composite = new SceneUtil::CompositeStateSetUpdater;