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PIXI.Container as mask


mcfly
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Hi all. As you see my question is related to masking. Have you ever used PIXI.Container with a PIXI.Graphics child to mask PIXI.DisplayObject?

I.e. Pixi.DisplayObject.mask = PIXI.Container

I've noticed this approach in a project I'm inheriting. I've tested it and works as expected. However this is a bit strange technique for me as I've never seen this before.

Do you foresee any issues with that (i.e. any browser related issues etc.)?

Thank you for your time.

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Yeah, that's only for graphics masks, implemented through stencil.  It just renders all elements inside mask container to stencil.

Sprite masks (alpha-masks) cant work like that, it will require extra framebuffer operations. After recent mask refactoring its possible to implement it but we just dont have time :)

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I have a special magic way to determine that: I look in sources.

https://github.com/pixijs/pixi.js/blob/c513e9287112ff8ed3f0326f700b731c204550b9/packages/canvas/canvas-renderer/src/utils/CanvasMaskManager.ts#L48

Here's recursive container walker, so it should support such mask.

Edited by ivan.popelyshev
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