support for width, height in the specific case of root GL.Node

[gre]

support for width, height in the specific case of root GL.Node

[gre]

That's up to implementation to handle this. i'm not actually sure how they should impl it.
need to look at gl.viewport semantic and see all the ways to scale it

[gre]

in gl-react-dom, it's as simple as setting the width/height in style and use a different canvas.{width,height}, not yet sure about GLKView (iOS) / GLSurfaceView (Android).

[gre]

#47 would solve this

[gre]

there is a strong correlation between resolution and performance, this is why this need to be fixed ASAP. in web, as said earlier, it will be easy.
But on iOS / Android , i'm not sure what's the best way to fix this. The thing is that rendering a big GLKView / GLSurfaceView is costy, i'm wondering if using a transform will do anything better though?

[gre]

this will result of a minor release in implementations. there will be probably nothing to do in gl-react.

[gre]

turns out the easiest way is to just use a copy shader that do the size changes. I've checked the perfs and it should be fine to take this approach for all. the copy shader is always going to be there but shouldn't be a bottleneck