Hey guys here is a problem on iphone11 or lower that scene.environmentTexture can't light up meshs

here is on Android

here is on iPhone

here is playground

Cc @sebavan

Your texture is too big :slight_smile: this should work with 2048 max size. I would also highly recommend to rely on a .env file instead: Using An HDR Environment For PBR | Babylon.js Documentation

thank u so much

As per my experience, you should target a resolution of the iphone X to play it safe:
2436 x 1125 px (watch the height!)
Also, aside from the size, the weight of a single texture should not be above 1mb.

Thank you for your answer,it work!