I think at Bigpoint the first 3 things players are advised to in the troubleshooting/support FAQ is (1) clear browser cache, (2) restart browser, and (3) reboot, this seems to clear up most problems from several years of experience ;)
Ken Russel suspects in the WebGL dev list that the Chrome GPU process might have crashed 3 times in a row which would lead to disabling all GPU acceleration including WebGL. Cheers, -Floh. Am Montag, 25. August 2014 20:05:06 UTC+2 schrieb Chad Austin: > > At IMVU, we've definitely seen scenarios where a browser occasionally > fails to create a WebGL context. It seems to happen on a wide variety of > hardware and operating systems. We see it internally a couple times a > week. Sometimes it clears itself up, and sometimes a browser restart is > required. > > > We haven't yet formulated a plan for how to deal with it, because, of > course, this is something customers will run into. > > > > On Mon, Aug 25, 2014 at 9:56 AM, Floh <[email protected] <javascript:>> > wrote: > >> Ok, latest info that the problem was caused by the long-running Chrome >> browser. A reboot/restart fixed it. >> >> I'm suspecting a memory fragmentation issue, but since Chrome opens a new >> process per tab it can't be the usual suspect (the emscripten heap), but >> probably something in the GPU process which caused the WebGL context >> creation to fail... >> >> Has anybody here experienced a problem like this? I'm not sure whether >> it's worth writing a Chrome ticket with the little info I have. >> >> -Floh. >> >> Am Sonntag, 24. August 2014 17:42:15 UTC+2 schrieb Floh: >> >>> Ok thanks! I'll see if I can test a few more configs tomorrow at work. >>> >>> Cheers, >>> -Floh. >>> >>> Am Sonntag, 24. August 2014 17:29:39 UTC+2 schrieb jj: >>>> >>>> There are no known Emscripten-specific GL context creation issues that >>>> I'm aware of. Tested the Clear and Triangle samples on that site on the >>>> following two systems, and on those they both pass: >>>> >>>> Mac mini >>>> Late 2012 >>>> >>>> *Processor* 2.3 GHz Intel Core i7 >>>> >>>> *Memory* 4 GB 1600 MHz DDR3 >>>> >>>> *Graphics* Intel HD Graphics 4000 >>>> >>>> *Software* OS X 10.9.4 >>>> >>>> Chrome 36.0.1985.143 >>>> >>>> >>>> MacBook Pro >>>> >>>> Retina, 15-inch, Early 2013 >>>> >>>> *Processor* 2.7 GHz Intel Core i7 >>>> >>>> *Memory* 16 GB 1600 MHz DDR3 >>>> >>>> *Graphics* NVIDIA GeForce GT 650M 1024 MB >>>> >>>> *Software* OS X 10.8.5 >>>> >>>> Chrome 36.0.1985.143 >>>> >>>> >>>> >>>> 2014-08-24 17:46 GMT+03:00 Floh <[email protected]>: >>>> >>>>> Hi, >>>>> >>>>> I got a report from a user with OSX Mavericks and integrated Intel >>>>> plus dedicated NVIDIA GPUs that the WebGL context creation fails (at >>>>> least >>>>> in Chrome, I don't have info about other browser): >>>>> >>>>> "Could not create canvas: Web page was not allowed to create a WebGL >>>>> context.,:(" >>>>> >>>>> Other WebGL demos run though, and use the NVIDIA GPU for rendering. >>>>> Are there any known issues in emscripten WebGL context setup code (I'm >>>>> using the new HTML5 setup functions) which would cause different >>>>> behaviour >>>>> from "traditional" WebGL demos? >>>>> >>>>> If anybody has a Mac with such a config (Intel+NVIDIA GPU + Chrome) I >>>>> would be grateful for feedback whether these demos run: >>>>> >>>>> http://floooh.github.io/oryol/ >>>>> >>>>> Thanks! >>>>> -Floh. >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "emscripten-discuss" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Chad Austin > Technical Director, IMVU > http://engineering.imvu.com <http://www.imvu.com/members/Chad/> > http://chadaustin.me > > > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
