From 1e888db53a1b5f7716a8443818e18d93a329f0c3 Mon Sep 17 00:00:00 2001
From: Harald Csaszar <harald.csaszar@pixelcloudgames.com>
Date: Thu, 22 Apr 2021 11:45:58 +0200
Subject: [PATCH] [unity] Prevent null reference exception when using `Advanced
 - Fix Draw Order` and disabling the renderer and/or GameObject.

---
 .../Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
index fc29fab9e..424f78212 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
@@ -690,6 +690,9 @@ namespace Spine.Unity {
 			}
 
 			for (int i = 0; i < meshRenderer.sharedMaterials.Length; ++i) {
+				if (!meshRenderer.sharedMaterials[i])
+					continue;
+
 				if (!hasPerRendererBlock) meshRenderer.GetPropertyBlock(reusedPropertyBlock, i);
 				// Note: this parameter shall not exist at any shader, then Unity will create separate
 				// material instances (not in terms of memory cost or leakage).