@Lockenheim Thank you for pointing this out. I think this seems to be a reccuring recommendation when learning 3-point-perspective, but it kind of limits it's use cases. I tried this approach for last weeks submission, but it simply didn't work when trying to stick closer to my thumbnail. To be fair, 2 point perspective might also just be fine for this piece, but since it's the 3-pp assignement I just went for it.
@mitsuki-youko Thank you so much, it means a lot <3.
Catching up on my current progress, I did manage to setup the basic construction and also rotated the wheel a bit so that it's no longer perfectly in line with the wall. Some minor changes I will try and some refinement to do, but all in all the layin is about complete.
Also, managed to fry my brain doing this:
A perfect cube in 1/2/3-point-perspective rotated around it's center with it being constant size. It is in fact quite straight forward, but for some reason I really couldn't comprehend how to do it for 3 point perspective. I think it's correct accounting for some inaccuracies while drawing.
This also could be used to set up perfect grids for any desired viewing angle. I am still not quite sure I understand all the geometric implications but it definitely improved my understanding of perspective.
Also, for some reason I couldn't find any ressources on how construct a perfect cube in 3-pp without relying on guessing a circle in perspective, so I had to make up my own method. If someones interested I'll make a tutorial on my approach. Or, even better, if someone knows of an existing tutorial I'd love to read it.