From faa87f56c9879f7190d10b6608d129af52eb6977 Mon Sep 17 00:00:00 2001
From: rhhong <rhhong@amazon.com>
Date: Wed, 27 Oct 2021 10:18:24 -0700
Subject: [PATCH] Fix build error

Signed-off-by: rhhong <rhhong@amazon.com>
---
 .../Code/Tools/EMStudio/AnimViewportWidget.cpp             | 7 +++----
 .../EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h | 2 ++
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp
index 42bc154fdf..c6e349236f 100644
--- a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp
+++ b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp
@@ -20,9 +20,6 @@
 
 namespace EMStudio
 {
-    static constexpr float DepthNear = 0.01f;
-    static constexpr float DepthFar = 100.0f;
-
     AnimViewportWidget::AnimViewportWidget(QWidget* parent)
         : AtomToolsFramework::RenderViewportWidget(parent)
     {
@@ -180,7 +177,9 @@ namespace EMStudio
     {
         auto viewportContext = GetViewportContext();
         auto windowSize = viewportContext->GetViewportSize();
-        const float aspectRatio = aznumeric_cast<float>(windowSize.m_width) / aznumeric_cast<float>(windowSize.m_height);
+        // Prevent devided by zero
+        const float height = AZStd::max<float>(aznumeric_cast<float>(windowSize.m_height), 1.0f);
+        const float aspectRatio = aznumeric_cast<float>(windowSize.m_width) / height;
 
         AZ::Matrix4x4 viewToClipMatrix;
         AZ::MakePerspectiveFovMatrixRH(viewToClipMatrix, AZ::Constants::HalfPi, aspectRatio, DepthNear, DepthFar, true);
diff --git a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h
index 5a193d31f1..e2099ea2ab 100644
--- a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h
+++ b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h
@@ -45,6 +45,8 @@ namespace EMStudio
         void ToggleRenderFlag(EMotionFX::ActorRenderFlag flag);
 
         static constexpr float CameraDistance = 2.0f;
+        static constexpr float DepthNear = 0.01f;
+        static constexpr float DepthFar = 100.0f;
 
         AZStd::unique_ptr<AnimViewportRenderer> m_renderer;
         AZStd::shared_ptr<AzFramework::RotateCameraInput> m_rotateCamera;