From ffa52dfe7c3f2a9fa9a05b14dc174c4ec4e387e1 Mon Sep 17 00:00:00 2001
From: Alexei Kotov <alexdobrohotov@yandex.ru>
Date: Fri, 19 Jan 2024 11:55:37 +0300
Subject: [PATCH] Don't use height cull callback when there's no terrain

---
 components/terrain/world.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/terrain/world.cpp b/components/terrain/world.cpp
index 93a9c563af..9c409b3bc2 100644
--- a/components/terrain/world.cpp
+++ b/components/terrain/world.cpp
@@ -145,7 +145,7 @@ namespace Terrain
 
     osg::Callback* World::getHeightCullCallback(float highz, unsigned int mask)
     {
-        if (!mHeightCullCallback)
+        if (!mHeightCullCallback || mTerrainRoot->getNumChildren() == 0)
             return nullptr;
 
         mHeightCullCallback->setHighZ(highz);