Bug: [v8] antialias=true drastically cuts performance even when idle

[joergplewe]

Current Behavior

I was investigating for quite a while now why the v8 port of my app runs much slower than v7, while in any lab experiment v8 drastically outperforms v7, especially when idling.

It turns out that antialias: true in Application.init() causes this behavior.

The provided playground runs with ~30fps even in idle mode.

Expected Behavior

When nothing changes in the scenegraph, run with 60FPS as with antialias: false.

Steps to Reproduce

Use https://www.pixiplayground.com/#/edit/RRfYsdhI3eEl1-bQ5KDC6 and look for CUT_PERFORMANCE.

Environment

• pixi.js version: 8.0.5
• Browser & Version: any
• OS & Version: any
• Running Example: https://www.pixiplayground.com/#/edit/RRfYsdhI3eEl1-bQ5KDC6

Possible Solution

No response

Additional Information

No response

[photonstorm]

Solid 60fps for me with antialias: true (M1 iMac, Chrome) using your playground link above.

[joergplewe]

Hm, I tried on another machine with slightly different results, but still showing the effect.
I increased to CONTENT_COUNT = 400000 in the playground.

[GoodBoyDigital]

Hey @joergplewe , antialias is something we don't really have much control over when it comes to optimising its behaviour.
It seems that WebGPU antialiasing is slower than WebGLs at this moment in time. I think the best thing todo here is to switch to WebGL (which is now the default renderer since 8.1.0)

hope this helps! Cheers man!