From a9bd7a284f829418ea115b32f4a810d904b1b5ae Mon Sep 17 00:00:00 2001
From: Nico de Poel <ndepoel@gmail.com>
Date: Wed, 31 May 2023 17:40:18 +0200
Subject: [PATCH] Additional safety checks when applying mipmap bias offset

---
 .../PostProcessing/Runtime/Effects/SuperResolution.cs     | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/SuperResolution.cs b/Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/SuperResolution.cs
index 3fd9ad7..5f332b0 100644
--- a/Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/SuperResolution.cs
+++ b/Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/SuperResolution.cs
@@ -218,11 +218,15 @@ namespace UnityEngine.Rendering.PostProcessing
 
             // Apply a mipmap bias so that textures retain their sharpness
             float biasOffset = Fsr2.GetMipmapBiasOffset(_renderSize.x, _displaySize.x);
-            if (!float.IsNaN(biasOffset))
+            if (!float.IsNaN(biasOffset) && !float.IsInfinity(biasOffset))
             {
                 _callbacks.ApplyMipmapBias(biasOffset);
                 _appliedBiasOffset = biasOffset;
             }
+            else
+            {
+                _appliedBiasOffset = 0f;
+            }
         }
         
         private void DestroyFsrContext()
@@ -233,7 +237,7 @@ namespace UnityEngine.Rendering.PostProcessing
                 _fsrContext = null;
             }
 
-            if (!float.IsNaN(_appliedBiasOffset) && _appliedBiasOffset != 0f)
+            if (!float.IsNaN(_appliedBiasOffset) && !float.IsInfinity(_appliedBiasOffset) && _appliedBiasOffset != 0f)
             {
                 _callbacks.ApplyMipmapBias(-_appliedBiasOffset);
                 _appliedBiasOffset = 0f;