Performance issues when displaying both game view and scene view

Unity Engine
1

Has anyone else experienced serious slowdown when playing a scene with both the game view and scene view visible?

I’m working on a very simple scene (a blocked out level and one character, nothing more - 4000 tris total) and it’s essentially unplayable when looking at both views at the same time. It’s a hard thing to submit a bug for, so I’m really just curious to hear if anyone else has had this issue… I’m on a mac, 10.10.1.

2

Which beta version?

3

b18

4

I’ve had that kind of issue before adslitw, but it was the result of one of my add-ons drawing waaaaaaaaay too many gizmos.

5

In past builds there was an issue that caused slow rendering of gizmos via OpenGL. I had experienced similar slowdowns w/ Unity on Macbook Pro as well, but recent builds, including b18, have been much better for me. As a workaround I’d suggest unchecking some or all gizmos from rendering in the editor scene during play-mode.

Here’s a link to the original thread discussing the editor scene rendering performance issues.

If these issues are a regression from Unity 4.x for you then I’d recommend submitting a bug report.

6

I’ve always had that issue on Unity 4. I also get slowdown if the Inspector tab is open -something about the screen dynamically updating transform values in the panel that slows it down.

I figured it was because it takes more power to run both the game and the scene view and/or update the inspector.

usually i make sure the inspector tab is closed (i open the lightmap tab over it) and i make sure the Scene view tab is closed(i open the tab with alerts instead). Or if i set the game to play full screen it runs extra fast, i assume because there are no additional panels being dynamically updated then, just the game screen.

1 Like
7

Yeah, I’ve had that issue as well. I find that it’s not as important to close the inspector as to make sure you have nothing selected in the hierarchy.

2 Likes
8

Wow, i just tried it out and you’re right:) Thanks for saving me some dev time.

1 Like
9

Hmmm, alright, cheers guys. I’ve learnt the ‘don’t have anything selected in the hierarchy’ trick already - that’s always been an issue. I definitely used to be able to get smooth performance with both the game and editor views visible, but I can’t remember exactly when (in the Unity 4 cycle) that changed.

If I figure anything out I’ll be sure to update this post (and if anyone else has any suggestions - gratefully received!).