From 24730d38985874ba4061026390e6929a724a7cc6 Mon Sep 17 00:00:00 2001
From: mob-sakai <sakai861104@gmail.com>
Date: Mon, 14 Aug 2023 15:47:07 +0900
Subject: [PATCH] fix: nullReferenceException after copy-n-paste

close #258
---
 Scripts/UIParticleRenderer.cs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Scripts/UIParticleRenderer.cs b/Scripts/UIParticleRenderer.cs
index 79f81c6..c81e2dc 100644
--- a/Scripts/UIParticleRenderer.cs
+++ b/Scripts/UIParticleRenderer.cs
@@ -112,7 +112,12 @@ public override Material GetModifiedMaterial(Material baseMaterial)
         {
             _currentMaterialForRendering = null;
 
-            if (!IsActive()) return baseMaterial;
+            if (!IsActive() || !_parent)
+            {
+                ModifiedMaterial.Remove(_modifiedMaterial);
+                _modifiedMaterial = null;
+                return baseMaterial;
+            }
 
             var modifiedMaterial = base.GetModifiedMaterial(baseMaterial);
 
@@ -157,6 +162,12 @@ public void Reset(int index = -1)
                 _lastBounds = new Bounds();
                 enabled = false;
             }
+            else
+            {
+                ModifiedMaterial.Remove(_modifiedMaterial);
+                _modifiedMaterial = null;
+                _currentMaterialForRendering = null;
+            }
         }
 
         public void Set(UIParticle parent, ParticleSystem particleSystem, bool isTrail)