Fix failed check in Camera::ConvertMouseToRay when result is invalid ray

2024-09-12 12:41:22 +02:00
parent 0bc98a5f18
commit e0a488dec1
1 changed files with 4 additions and 1 deletions
--- a/Source/Engine/Level/Actors/Camera.cpp
+++ b/Source/Engine/Level/Actors/Camera.cpp
@@ -237,7 +237,10 @@ Ray Camera::ConvertMouseToRay(const Float2& mousePosition, const Viewport& viewp
    viewport.Unproject(nearPoint, ivp, nearPoint);
    viewport.Unproject(farPoint, ivp, farPoint);

-    return Ray(nearPoint, Vector3::Normalize(farPoint - nearPoint));
+    Vector3 dir = Vector3::Normalize(farPoint - nearPoint);
+    if (dir.IsZero())
+        return Ray::Identity;
+    return Ray(nearPoint, dir);
 }

 Viewport Camera::GetViewport() const