Generate avatar previews

Cryptopunks have a good avatar pose that signals membership:

We already generate VRM previews, and we can apply poses to them. Therefore it shouldn’t be hard to generate a new endpoint that will give cryptopunk-style previews.

On top of posing the avatar correctly (looking to the side), we should generate a shader plane for the background of this screenshot, keyed by the “id” (NFT token id, or URL), and then put through a hash function (like alea, which we use) to select the generation offset (seed) for the shader to use.

Here is the raw shader:

https://www.shadertoy.com/view/ftsSR2

And here are some of the symbols it renders so it is clearer how it works:

https://svgshare.com/s/Z6p

[madjin]

To better understand the pose / angle of the headshot here’s a couple other avatar projects for inspiration that are higher resolution than punks.

Made a couple headshot poses to get an understanding, its also better when the eyes don’t always face towards you

[Vianvolaeus]

Bringing in some previews from @avaer that were posted in the discord.

I think the first is great, as evidenced by the pure black hair on top of it, it looks like it works fine even with very dark colors on top of it.