Oddly specific request, can you somehow make it do that 'wobbly' thing that PS1 graphics do? Or is that just not possible?
Can you show an example? This kind of sounds like an effect or using lower resolution with nearest and no filtering.
https://github.com/dsoft20/psx_retroshader
Ah, I see. We can't change the vertex shader, but we could play with vertex values on the CPU. So would take some CPU perf to do it, I'll take a look. Adding to the list for later.
Check out the dev logs - does the new vertex rounding ACE do what you want?