WebGPU rendering

[dvdkouril]

For the time being, depending on threejs is likely a good choice, in order to focus on figuring out requirements and defining a nice API. I am, however, tempted to implement a renderer in WebGPU, taking advantage of improved graphics capabilities (and compute). The vision of making a library that has zero dependencies (the gl-matrix is small enough to simply include in the source) and uses only browser APIs is cool, too.

Pros (of webgpu vs webgl/threejs renderer):

• easier and more efficient to implement impostor rendering (can use storage buffers)
• could result in a simpler code with appropriate abstractions (not tailoring for general game/graphics use cases)
• no dependencies

Cons:

• departing from a huge developer community
• will take time to implement and chase down bugs
• webgpu is still evolving and not available by default in some browsers

[dvdkouril]

Closing as this is not a priority, and won't be on my radar for quite some time.