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Position GUI control at PointerDown

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So this kinda works..

https://www.babylonjs-playground.com/#NVY5B4

Breaks as soon as you play with canvas or browser dimensions. 

Next tried to do some calculations following this StackOverflow post

https://www.babylonjs-playground.com/#NVY5B4#1

The PG is broken, canvas.getContext('2d') returns null.

I suspect I will need to get the AdvancedTexture context, but not sure how. Than use it's currentTransform property to calculate the position. Open to ideas.

Solved by Ssaket - https://www.babylonjs-playground.com/#LRS51E

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Hey ! I am no pro but I would suggest not to interact with canvas directly as it might result in context loss. Use the core engine's/ADT (https://doc.babylonjs.com/api/classes/babylon.gui.advanceddynamictexture) built in functions.

You can use this PG for reference-  https://www.babylonjs-playground.com/#XCPP9Y#658,  look how scene.onPointerMove updates the rectangle's position :) 

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