I just updated my IPhone SE and IPad Air 2 to IOS 15 and tested my app. It seems that the WebGL 2 support is somehow broken regarding SSAO2. On my IPad i just get a blank/white screen if i use SSAO2. On my IPhone it works but the background color is always black (not the clearcolor i want). Here …

@CraigFeldspar is actually looking into related bugs but I guess this one might lie deep in their browser stack :frowning: Could you open a ticket on the webkit bug tracker ?

I think its not very helpful to create an issue like “SSAO2 in BabylonJS does not work” in the webkit bug tracker. I think we need a more detailed/technical description for the problem. Maybe @CraigFeldspar knows the underlying reason why its not working.

The thing is it can be plenty of things and I would bet on a weird bug in their draw buffers rendering or msaa with draw buffers.

No idea if it helps. This webgl2 threejs example i the only one which is not working: three.js examples .

Yup it uses multiple attachments as well so it is definitely related.

Could some please test my playground with newer IOS devices and also on Mac with Safari 15. I fear that our app is currently broken for all Safari 15 users :worried:

Might be an evolving situation at the moment. As of this morning, I tried my web app on Safari iOS 15, seems to load fine (didn’t yesterday). https://jam4d.herokuapp.com

@FBa it is because I added a workaround in babylon yesterday but they will take WAY MORE TIME to release the fix… It has actually already been addressed in WebKit but you know WebGL and Safari…

There is a long list of failing conformance tests in the webkit bug tracker: https://bugs.webkit.org/buglist.cgi?bug_status=open&content=webgl%2F2.0&no_redirect=1&order=changeddate%20DESC%2Cpriority%2Cbug_severity&query_format=specific I think it may take a while before we get proper WebGL2 suppor…

No more crashes when I enabled Develop → Experimental Features → GPU Process: WebGL :eyes:

IOS 15 and WebGL 2 Issues

Questions

jeremy-coleman September 22, 2021, 12:13pm 17

Ms , google, netflix, epic, etc should all publicly shame them in marketing material so there are consequences to their dumbassery.

Topic		Replies	Views
BabylonJS (5.0 - 5.5.5) & iOS 15.4 + Safari 15.4 issues Questions	36	1781	July 12, 2022
Combining SSAO2 and SSR wont render Mesh on Safari Bugs	4	460	September 8, 2022
Babylon does not work in Safari Browser Bugs	18	2781	May 21, 2020
iPad safari with enabled webgl 2.0 does not work with Babylon Questions	12	5439	October 2, 2020
IOS 16.6 SSAO not working properly Bugs	7	385	January 29, 2024

IOS 15 and WebGL 2 Issues

Related topics