iOS - cannot open an app on iOS browsers. Memory limit

[nogalo]

Hi guys. This issue is mentioned in many other threads since I posted this question. Even though I am the one often answering those questions I never actually closed this thread, as I completely forgot about it.

Here are some of threads where the issue is mentioned if you find it useful

Ipad pro 2 loading bug

First thing that pops to mind whenever dealing with iOS is memory limit. Try reducing texture size to 1k and less, and see if it changes anything.

Babylon JS keeps refreshing on iOS

NOTE: I cannot confirm, but using env on iOS (where you could have trouble with webgl2 features, because… APPLE I guess) MIGHT NOT WORK as it seems to use weblg2 features indeed. As I said, I cannot confirm,cause I have no idea what is actually going on in the env implementation (I will probably look into that more though)

GLTF model crashes ios browsers

Hi. The issue is that ALL of your textures are 2k resolution. IOS has it’s own thing and some limitations, and the issue you are describing usually comes from the large textures. It’s really not easy to define how many textures you can have, and how large they should be to avoid this issue. I usually keep it to this rule though → “Limit your textures for IOS to MAX 1k resolution”. If you have a lot of textures, even this might be reduced in some places. Basically, it’s not that you cannot have…

This basic model import playground causes an iPhone device to crash. Please assist

Hi. It’s really hard to say and predict the number and size of textures that will work on IPhone. Could you try to reduce all textures to max 1k res? Try to do it with like 512 to 1k texture size and check if it works. From my experience limiting resolution to MAX 1k works on IPhone. I didn’t have a situation though, where I had 200+ textures in the scene, so I am not sure if this limit to 1k will work. But for the test purpose I think it would be informative for all of us to see if that works…

This basic model import playground causes an iPhone device to crash. Please assist

Hi. It’s really hard to say and predict the number and size of textures that will work on IPhone. Could you try to reduce all textures to max 1k res? Try to do it with like 512 to 1k texture size and check if it works. From my experience limiting resolution to MAX 1k works on IPhone. I didn’t have a situation though, where I had 200+ textures in the scene, so I am not sure if this limit to 1k will work. But for the test purpose I think it would be informative for all of us to see if that works…

To sum up. Usually the issue comes from the textures and their resolution. It’s hard to say what are actual limitations, but keeping textures around 1k resolution usually works. The rest is pretty much relying on testing.

If you have small number of textures you can go higher resolution on those. If you have huge amount of textures, it’s important to keep them optimized as much as possible.