PR tested with https://github.com/bqplot/bqplot-gl in bqplot/bqplot-gl#7 (adding visual tests with Galata and current JS tests soon)

What about creating a webgl canvas, and letting the marks create a threejs renderer if needed?

@maartenbreddels thanks for the review :)

What about creating a webgl canvas, and letting the marks create a threejs renderer if needed?

What would be the upside of this?

Most of the code in the Figure class can stay as it is (only the line/lines that creates the rendered will change), and we don't need any Figure subclass.

Right! Yeah that would be cool. I'll try it this way then.

This means you can write a threejs, raw WebGL, or Regl marks and mix them.

@maartenbreddels the webgl context is now created here in bqplot and we don't need to subclass the Figure

Yes, very cool!
The only worry I have is that now we don't lazily create the context, like before using createWebGLRenderer (which now should be called createWebGLCanvas I think. Otherwise, we'll create these contexts too often, and the web-browser will show this 'broken' image because we created too many WebGL context.

The only worry I have is that now we don't lazily create the context, like before using createWebGLRenderer (which now should be called createWebGLCanvas I think. Otherwise, we'll create these contexts too often, and the web-browser will show this 'broken' image because we created too many WebGL context.

This should be resolved now :)