Quality on mobile phones is very low!

[vacsHoai]

I work on a project and upload the model in glb format. On the PC everything renders fine. The quality is quite good. But when I tested it on the phone, the quality was very low. Can anyone tell me some solutions to fix it or not? Thank you very much!
PC:

Mobile device:

[Lawrence3DPK]

@vacsHoai

it’s pretty difficult to tell what the problem is without seeing some code…

have you set your renderers pixel ratio to the device pixel ratio?

renderer.setPixelRatio( window.devicePixelRatio );

[vacsHoai]

oh. Thank you very much. I didn’t know about that.