How remove Canvas2d object creted after PIXI.Graphics on use generateCanvasTexture

[www.taras]

Hi , question about GC or how i can clean canvas2d object after use method  generateCanvasTexture
game use PIXI.WebGLRenderer - only

PixiJs version 4.8.2 (this my pain, but i can`t up pixijs to v5)

on class 
this.data:PIXI.Graphics
this.view:PIXI.Sprite
....
on sometimes i need redraw data on view
this.texture =this.data.generateCanvasTexture(PIXI.SCALE_MODES.LINEAR,1);
this.view.texture = this.texture;

on next time try to clean  this.texture, remove from 

PIXI.Texture.removeFromCache 
this.texture .destroy(true);
delete this.texture ;
 

but debug console in Safari (tab Canvas) show all Canvas wich  created on method generateCanvasTexture, but they never destroyed on memory 

How i can do clean up memory on it?

[ivan.popelyshev]

"this.texture.destroy(true)" should work. PixiJS removes lins from its cache, destroys WebGLTexture. If you see something lingering - please specify where exactly is that lingring, what is the path from root node.

If you save a link to canvas somewhere - PixiJS wouldn't be able to "free" it. Its just not possible. Well, actually it is with "canvas.width=1; canvas.height=1;" but we dont have that code in our lib, we just nullify links to it and destroy webgl objects.

Edited January 20, 2020 by ivan.popelyshev

[www.taras]

this.texture.baseTexture.source.width=1;
this.texture.baseTexture.source.height=1;

delete this.texture.baseTexture.source;

thanks for prompt repl

after implement this method Canvas2d memory is -64b(before 1.2 Mb), but object Canvas2D still present  

[ivan.popelyshev]

run a profiler , make memory dump - you should see nunmber of objects of every type  - and when you click on any object , you can trace who exactly references it