WorldSpaceCanvas scaling, children don't appear to scale correctly

[unintellisense]

Hello,

I have a couple scenes where I scale up some WorldSpaceCanvas instances with some simple UI. I recently took the latest preview release and noticed that children are offset strangely until the canvas reaches its full scale. I made a PG which should demonstrate what I am talking about:

http://www.babylonjs-playground.com/#W9SZY#2

It's most obvious with the title, but it happens with anything which isn't very close to 0,0, it seems.

Thanks for a great framework!

[GameMonetize]

ping our Canvas2D guru: @Nockawa

[Nockawa]

@unintellisense I'm working on it since few hours, it's about to be solved, the scale will work as expected. I'll let you know when the Source and PG is updated.

[Nockawa]

@unintellisense the PG is updated, please CTRL-F5 your browser and try again, tell me if the issue is fixed or not, thanks!

[unintellisense]

You the man, PG works as expected, as well as my own project when I take latest. Thanks again!

[Nockawa]

my pleasure!

[unintellisense]

Not sure whether I should create a brand new topic for this, so I apologize if I should have. 

I noticed with the latest preview, that the original PG (and my own project started getting the following error, it seems to occur anytime the scale is set to zero:

Uncaught Error: Can't invert matrix, near null determinant
    at Matrix2D.invertToRef (babylon.canvas2d.js:185)
    at Function.Matrix2D.Invert (babylon.canvas2d.js:144)
    at Rectangle2D.Prim2DBase.updateCachedStates (babylon.canvas2d.js:9136)
    at WorldSpaceCanvas2D.Prim2DBase.updateCachedStatesOf (babylon.canvas2d.js:8950)
    at WorldSpaceCanvas2D.Group2D._prepareGroupRender (babylon.canvas2d.js:11599)
    at WorldSpaceCanvas2D.Canvas2D._updateCanvasState (babylon.canvas2d.js:17734)
    at WorldSpaceCanvas2D.Canvas2D._render (babylon.canvas2d.js:17745)
    at e.callback (babylon.canvas2d.js:16554)
    at e.notifyObservers (babylon.js:2)
    at i.render (babylon.js:12)

 

If I change the initial scale to .001 or something, the error no longer occurs.

http://www.babylonjs-playground.com/#W9SZY#6

 

Other than that, really good! The various scaling / positioning I am doing on world as well as local canvas's are all working as expected. Great work.

[Nockawa]

well, I assume that if you set the scale to 0, now at some point there will be a division by zero... I should throw an exception if you try to set the scale to 0, it should not be authorized.