From 8e757c2c39e382a0523e4ce230e5719ea450f483 Mon Sep 17 00:00:00 2001
From: Masayoshi Dohi <66519864+Masa0u0@users.noreply.github.com>
Date: Fri, 27 Sep 2024 00:52:08 +0900
Subject: [PATCH] Avoid redefinition of default color materials (#1281)

---
 rviz_rendering/src/rviz_rendering/material_manager.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/rviz_rendering/src/rviz_rendering/material_manager.cpp b/rviz_rendering/src/rviz_rendering/material_manager.cpp
index 7983e962f..4076b0f8b 100644
--- a/rviz_rendering/src/rviz_rendering/material_manager.cpp
+++ b/rviz_rendering/src/rviz_rendering/material_manager.cpp
@@ -42,6 +42,9 @@ namespace rviz_rendering
 void MaterialManager::createColorMaterial(
   const std::string & name, const Ogre::ColourValue & color, bool use_self_illumination)
 {
+  if (Ogre::MaterialManager::getSingleton().resourceExists(name, "rviz_rendering")) {
+    return;
+  }
   Ogre::MaterialPtr mat = Ogre::MaterialManager::getSingleton().create(name, "rviz_rendering");
   mat->setAmbient(color * 0.5f);
   mat->setDiffuse(color);