explore supersampling?

[ageller]

Since anti-aliasing is not working (maybe not possible?) with our setup, the referee suggested supersampling. Here are some links that might be helpful if we want to explore this:

• https://stackoverflow.com/questions/15409321/super-sample-antialiasing-with-threejs
• https://bgolus.medium.com/sharper-mipmapping-using-shader-based-supersampling-ed7aadb47bec
• https://threejs.org/examples/webgl_postprocessing_taa.html