Re: [Public WebGL] Context lost event in Chrome

To: Mark Callow <callow_mark@hicorp.co.jp>

Subject: Re: [Public WebGL] Context lost event in Chrome

From: Alexey Marinichev <amarinichev@google.com>

Date: Tue, 22 Feb 2011 17:24:03 -0800

Cc: Steve Baker <steve@sjbaker.org>, public webgl <public_webgl@khronos.org>

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// Use Direct3D9Ex if available. Among other things, this version is less

// inclined to report a lost context, for example when the user switches

// desktop. Direct3D9Ex is available in Windows Vista and later if suitable drivers are available.

On Tue, Feb 22, 2011 at 1:51 PM, Mark Callow <callow_mark@hicorp.co.jp> wrote:

It was WindowsXP so I guess it must have been the screen saver. Why does that cause a loss of context?

Regards

-Mark

On 2011/02/22 7:41, Alexey Marinichev wrote:
Screensaver should not, at least in theory, affect Chrome in any OS other than Windows XP.

Context lost event is also fired if GPU process crashes.

On Mon, Feb 21, 2011 at 4:52 PM, Steve Baker <steve@sjbaker.org> wrote:

I'm betting the screen-saver kicked in.

-- Steve

On 02/21/2011 04:55 PM, Mark Callow wrote:
>
> I left my simple WebGL app running on one computer in Chrome (using
> GWT dev mode) while I did something on a second machine. When I
> returned my attention to the first computer, the application had
> received a context lost event. There was nothing else going on in
> Chrome or on that computer so why would a context lost event have been
> triggered?
>
> I have tried to reproduce the phenomenon but this time the application
> just keeps on running.
>
> Regards
>
> -Mark
>
>
>
>

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