goxjs
Plans for WebGL 2
I don't have immediate plans to work on this, but goxjs/gl could support it one day (probably not very soon).
WebGL 2.0 is very new and there are some browsers that don't support it yet. See http://caniuse.com/#feat=webgl2.
So it'd have to be an optional backend, with a fallback.
How does its API compare? I'm not familiar with it yet. Is it purely additive, or are there incompatible changes?
To make this happen, I expect the very first step would be to create pure WebGL 2.0 bindings (e.g., similar to https://github.com/gopherjs/webgl, but target WebGL 2.0 instead of 1.0). After that's done, we can consider upgrading goxjs/gl browser support.
How does its API compare? I'm not familiar with it yet. Is it purely additive, or are there incompatible changes?
I've looked at https://www.khronos.org/registry/webgl/specs/latest/2.0/#4.1. It's mostly an addition to the WebGL 1.0 API, with some minor backwards incompatible changes.
WebGL 1.0 mapped to OpenGL ES 2.0, while WebGL 2.0 maps to OpenGL ES 3.0.