I Set adaptToDeviceRatio to true, but it is useless

Questions
1

Hi

I use photodome to create webvr, but it is very fuzzy on the mobile side, so I set the adaptToDeviceRatio of the engine to true, but it doesn’t work.Already clear the cache

2

What’s it supposed to do?

4

I don’t know, I tried to modify the width and height of the canvas, but it didn’t work, it’s still very fuzzy

5

This flag is an engine flag that adjusts the hardware scaling level like this:

this._hardwareScalingLevel = adaptToDeviceRatio ? 1.0 / Math.min(limitDeviceRatio, devicePixelRatio) : 1.0;

But, as hardware scaling doesn’t work in XR (as XR doesn’t use the canvas directly) you won’t notice it in XR.

what exactly are you trying to achieve? Want to share a repro?

6

my divicePixelRatio is 3.0
xr.engine.setHardwareScalingLevel(1.0 / window.devicePixelRatio))
it’s still very fuzzy

I see. thanks
I want to show some vr pictures using babylonjs.

7

XR is bound to the HUD’s resolution, but you can achieve the same effect as hardware scaling if you define the framebuffer scaling when initializing your session. These are the default values - Babylon.js/webXRManagedOutputCanvas.ts at master · BabylonJS/Babylon.js · GitHub

You can use it this way - https://www.babylonjs-playground.com/#5EQA9Y#3

8

Thanks, I try :smiley: