Outline filter does not scale with renderer

[JT Smith]

If you scale the pixi renderer something like this:

let zoom = 50;
const scale_factor = zoom / 100;
      app.stage.scale.x = scale_factor;
      app.stage.scale.y = scale_factor;
      app.renderer.resize(
        width * scale_factor,
        height * scale_factor
      );

And apply an OutlineFilter to the objects on the stage, the width applied in the filter doesn't get scaled. So if you set a width of 10px on the filter, it's 10px regardless of whether the renderer scale is at 50% of its original size or 100%.

I've set up a demo here: https://jsfiddle.net/plainblackguy/dfcm6hjL/44/

What I'd expect is that the width of the filter be 5px if I set the scale of the renderer to 50%.

Of course, it's 100% possible that I'm just misunderstanding something. Thanks for your time.

[Matt Karl]

That's not really how filters work. They don't care about the scale of the display object.

You can do something like this to scale the thickness depending on the scale.
https://jsfiddle.net/bigtimebuddy/m3Lf2p78/

[JT Smith]

The fact that filters "don't care" and everything else "does care", seems a bit odd to me.

Shall I take your reply to mean "won't fix"? It's not ideal, but at least if I know that you're not going to change your mind, I can work to craft some sort of a solution to walk the tree of objects and apply my own scaling.

[Matt Karl]

None of our filters adapt to the world scale. Even the built-in filters like BlurFilter. It's up to the user to manage. If we were going to change the current behavior, that would be a discussion for the main repo. I can definitely can see not scaling the outline thickness (in your example) as desirable. One person's unintended behavior is another's expected behavior.

[JT Smith]

Thanks for your help.