CefSharp WebGL not working

[spektor56]

@Jason Carr @Grila

I have an animated WebGL usercontrol that uses CefSharp, how come the WebGL part doesn't work inside BigBox?  Works fine in my test application.  If its plain HTML the control works fine in BigBox but the WebGL just crashes and goes black when hosted in BigBox.

Sample:

https://i.imgur.com/DEOtd4j.mp4

I would like to interop this with Grila's weather control.

Edited July 6, 2018 by spektor56

[Grila]

In another thread, a user was having difficulties with CefSharp until he pointed to the one already included in LB. Just a thought depending on how you're referencing it in your plugin...

Here's the thread for reference: 

 

[spektor56]

The thing is, the control is "working" it's just the WebGL part that isn't working.  I'm wondering if @Jason Carr is using a static CefSettings object or something that is interfering with the settings i need for my usercontrol?

[spektor56]

I ditched CefSharp in favour of microsoft Edge and got it working...  Fun fact, as of May 9th 2018 microsoft Edge has a WPF and WinForms usercontrol called WebView!

https://blogs.windows.com/msedgedev/2018/05/09/modern-webview-winforms-wpf-apps/

[Jason Carr]

Glad you got it working. I remember researching that back when I implemented it only to discover that it wasn't ready yet (iirc). I'm sure if we switched it would at least cut down the size of the installer quite a bit. But Edge isn't included in Windows 7, is it?

[spektor56]

AFAIK it is only supported in Windows 10.  windows 7 is end of life support in 6 months so doesn't really matter....

[Jason Carr]

4 minutes ago, spektor56 said:

AFAIK it is only supported in Windows 10.  windows 7 is end of life support in 6 months so doesn't really matter....

Yeah, unfortunately I'd still have a huge number of people up in arms if we ended support for Windows 7.

[spektor56]

Windows 7 is a security liability, no DX12 support, ie11 dead with no support, no UWP support, no new CPU / hardware support, no new driver support, etc etc etc.

Windows 10 is free, I don't get it.

[DOS76]

Windows 7 is supported until January 14th 2020 so a little more than 6 months left.

[spektor56]

Dammit, my brain is stuck in car years cuz i'm getting a 2020 next year LOL.  Still, a year and 6 months is not far away.

Edited July 6, 2018 by spektor56

[spektor56]

@Jason Carr argh, unfortunately the Edge control suffers from the airspace issue where the cefsharp control does not.  Are you fiddling with CefSettings() anywhere in launchbox? what version of cefsharp are you running?  still can't get webgl working for cefsharp in BB

[Jason Carr]

6 minutes ago, spektor56 said:

@Jason Carr argh, unfortunately the Edge control suffers from the airspace issue where the cefsharp control does not.  Are you fiddling with CefSettings() anywhere in launchbox? what version of cefsharp are you running?  still can't get webgl working for cefsharp in BB

I remember there are a number of relatively serious quirks/bugs with CefSharp in WPF, so yes, we are fiddling with the settings out of necessity. We use "disable-gpu-compositing" and "enable-begin-frame-scheduling", one of which is probably causing the issue. Unfortunately those are necessary because of the quirks and bugs. I can look into upgrading here at some point to see if those issues are fixed though, but it might be a while yet before I can get to it.

[spektor56]

disable-gpu-compositing is definitely the offender here...

Edit: hmm, tried with those two flags and it still works in my test app.

Edited July 6, 2018 by spektor56

[spektor56]

Any other commands called on the Cef object or CefSettings?

I downloaded same version (63.0.0) as used in bigbox and i cant reproduce the issue in my test app

[Jason Carr]

1 minute ago, spektor56 said:

Any other commands called on the Cef object or CefSettings?

I downloaded same version (63.0.0) as used in bigbox and i cant reproduce the issue in my test app

Not that I can see. Are you testing the WPF control or the Windows Forms control?

[spektor56]

I'm using the WPF control

Just get a black screen when trying to view this for example:
http://webglsamples.org/aquarium/aquarium.html

but works in my test app.