From ea489fbf2a57f9bb8f8489f04cdcb6d85bd72509 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Wed, 20 Jan 2021 13:11:45 +0100
Subject: [PATCH] Fix crash in motion blur tile size calculation

---
 Source/Engine/Renderer/MotionBlurPass.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/Engine/Renderer/MotionBlurPass.cpp b/Source/Engine/Renderer/MotionBlurPass.cpp
index 609712e1f..46b2ccd8f 100644
--- a/Source/Engine/Renderer/MotionBlurPass.cpp
+++ b/Source/Engine/Renderer/MotionBlurPass.cpp
@@ -285,7 +285,7 @@ void MotionBlurPass::Render(RenderContext& renderContext, GPUTexture*& input, GP
     PROFILE_GPU_CPU("Motion Blur");
 
     // Setup shader inputs
-    const int32 maxBlurSize = (int32)((float)motionVectorsHeight * 0.05f);
+    const int32 maxBlurSize = Math::Max((int32)((float)motionVectorsHeight * 0.05f), 1);
     const int32 tileSize = Math::AlignUp(maxBlurSize, 8);
     const float timeScale = renderContext.Task->View.IsOfflinePass ? 1.0f : 1.0f / Time::Draw.UnscaledDeltaTime.GetTotalSeconds() / 60.0f; // 60fps as a reference
     Data data;