[Bug, Problem] Steamworks Overlay glitches on OSX

We are preparing our game for Steam and I'm facing a huge glitch with Steam Overlay on OSX.

The game runs fine, no crashes, but when Steam Overlay appears, some of the sprites stop rendering or render with glitches, thus making bad user experience while interacting with Steam.



As you can see, background becomes brown here instead of colourful image.
It seems like it has to do something with low-level interference between Steam Overlay and Unity's OpenGL.

I've googled the problem and searched through Steamworks closed forum, but found no answer or workaround.

Has anybody faced this kind of problem or has any solution?

I've filed a bug report #651180 with detailed explanation and steps to reproduce this behaviour.

 

I'm having the exact same problem; did you ever figure anything out?

 

I've found no solution.

Right now i'm drawing a single transparent pixel in OnGUI stage as a workaround and it seems to work.

 

Hm i am having the same problem :/ But what do you mean with single transparent pixel?

I try this
...
-> Start
this.workaroundTexture = newTexture2D(1, 1, TextureFormat.ARGB32, false);
this.workaroundTexture.SetPixel(0, 0, newColor(0.0f, 0.0f, 0.0f, 0.0f));
this.workaroundTexture.Apply();

-> OnGUI
GUI.DrawTexture(newRect(0, 0, Screen.width, Screen.height),this.workaroundTexture);
...

But it did not fix my problem ...
The steam overlay hide my intro video
...
GUI.DrawTexture(newRect(0,0,Screen.width,Screen.height),this.intro,ScaleMode.StretchToFill, true, 0.0f);
...

Any ideas?

 

"Fixed" it by adding an 3D Cube in the scene ... no idea why but now it works

 

Oh really? We've had issues before that were solved by that...

It makes me think there's some aspect of the internal render state which isn't set until you do something like render a mesh.

 

Just chiming to corroborate that idea: I had this issue when I had an empty scene with just OnGUI stuff in it and a camera. The above extra OnGUI code didn't fix it, but rendering a small cube way in the distance *did* fix it. Good times.

 

We also tried it, but it didn't work (adding a cube).
After the Unity logo, the screen stays black on mac (Unity 5.2.4) unless we disable the steam overlay.
Some people seem to say this is more on the valve side, but this is annoying.

Any idea?

Thanks.

 

I have the same issue on Unity 5.5.2, so updating is not a solution...

 

We've been getting reports that the Steam Overlay cannot be interacted with, that Unity is blocking the clicks (on OSX)...? Anyone else experienced that, and is there a known fix?

 

I have visual glitches on my game with Steam Overlay on OSX. No solution for this?