RenderTexture and generateTexture

[canvasman]

I can create texture of PIXI.Graphics with renderer.generateTexture() function.

I could also create new render texture and use renderer.render() function to render the circle to that, am I right?

Which one of those I should use? Is there any performance benefits?

[ivan.popelyshev]

generateTexture() has extra "getLocalBounds" call which is evil. That thing is messing with transforms.

https://github.com/pixijs/pixi.js/blob/dev/src/core/renderers/SystemRenderer.js#L251

[Rydez]

What exactly is wrong with generateTexture()? I use this whenever I create a sprite from a graphic. Is this bad practice? 

[ivan.popelyshev]

Its difficult topic.

Number of bugs I encountered because of re-parenting or re-calculating transforms inside that kind of functions in pixi is high and its always pain to debug it. I failed at patching it , most of my PR's regarding this problem were rejected because code was not clear.

When someone passes element that already has a parent inside "generateTexture" or "extract" plugin, or even use "cacheAsBitmap", I advice to prepare for pain in case this thing backfires. Its their problem to debug and not mine.

Example: https://github.com/pixijs/pixi.js/issues/5232

[ivan.popelyshev]

Good Practice: either pass there element that has no parent, either pass extra parameter "region".