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I really hope a lot of Unity developers upgrade to Unity 4.5 as it offers up some heavily needed fixes to the engine for Linux builds of games. Unity is the engine behind games like Wasteland2, Rochard, Verdun, Rust and many more.

The biggest annoyance for Linux gamers thanks to Unity 4.5 looks to be finally over, with the fixes list highlighted below we can finally bid rest to having the mouse look locked towards the sky when full-screen in a lot of Unity-based games.

Linux specific engine fixes
Linux: Fixed "jump" when initially locking mouse cursor.
Linux: Fixed DllImport of system libraries.
Linux: Fixed eventual runaway CPU usage on headless players.
Linux: Fixed non-ASCII text input.
Linux: Fixed OnApplicationFocus.
Linux: Fixed Ping implementation.
Linux: Fixed switching to fullscreen mode for window managers that do this in two steps.
Linux: Fixed translucent hardware cursors.
Linux: Report screen size as 640x480 in headless player (avoids crashes when user projects divide by screen size).
Linux/Windows: Don't unload asset bundles when their assets may need to be reloaded.
Linux: Query webcam for dimensions when user doesn't specify them.
Linux: Worked around drivers grossly underreporting video memory.

Sadly though, there doesn't seem to be many if any OpenGL performance fixes, as we all known Unity3D's performance isn't on-par with Windows. There a fair few OpenGL ES fixes, but nothing good for OpenGL desktop, but hey actually being able to play some more Unity games thanks to the mouse fixes is a damn good start...if a little late.

See the full blog post from Unity here. Article taken from GamingOnLinux.com.
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I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly checked on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly. You can also follow my personal adventures on Bluesky.
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8 comments

mint_guy May 27, 2014
I hope this fixes will go into Rust. Can't really play it while looking at the skybox. =D
B166ERDK May 27, 2014
#mint_guy
Until the they update the game to take advantage of the fixes just turn down your resolution a bit and it should not lock up any more.
Anonymous May 27, 2014
Finally fixed that mouse problem, great.


So how much better does Windows perform compared to Linux with Unity? I guess most Unity games I play are lightweight so I haven't noticed an issue.
Anonymous May 27, 2014
" Linux: Worked around drivers grossly underreporting video memory. "

This !


I have been waiting for this fix. Now Just to wait for Verdun , Guns of Icarus and Rust to update.
pd12 May 31, 2014
I just commented on my experience with GoI (and PA) at http://issuetracker.unity3d.com/issues/screen-dot-lockcursor-under-linux-breaks-input-dot-getaxis
I hope this update REALLY fixes the Unity mouse looking up thing, especially seeing as it says Linux: Fixed "jump" when initially locking mouse cursor. But my problem is persistent and not a "jump". (See the issue tracker link for more details).

I'd like to play Rust but maybe when it's a bit cheaper (althought it looks like CT uniformed players in bases going out and killing cavemen) =P
Liam Dawe May 31, 2014
I tested a game that uses this version of Unity and the mouse was perfectly fine, so it looks like it may have fixed it for real.
Quiller[NL] Jun 14, 2014
" Linux: Worked around drivers grossly underreporting video memory. "
This !
I have been waiting for this fix. Now Just to wait for Verdun , Guns of Icarus and Rust to update.
Verdun played nice on my Linux Mint 15 on high resolution. Update 150 (Unity 4.5) screwed up the whole game. Mouse is difficult to control or not at all. Motion is choppy etc. Not playable at all anymore :((
edo Jun 17, 2014
There are some bugs in Rochard for Linux than I had, I hope it is now fixed and the game gets updated to the new unity 4.5.
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