Add support for some kind of anti-aliasing to meshes.
Some methods would be:
MSAA which would bring about the problem of wgpu only supported 4xMSAA or none.
SSAA expensive but would work irrelevant of backend but requires a whole new render pass to achieve.
FXAA same as SSAA in that it would require a new render pass however is much more lightweight but can produce less than stellar results at times.
Custom shader for meshes that smooths the edges, this could be done in the fragment shader not requiring an additional pass but will need a new pipeline if it gets used at the same time as any non-anti-aliased things.
Add support for some kind of anti-aliasing to meshes.
Some methods would be: