I'm trying to exercise on perspective, a topic I avoided for years and I have trouble with how to calculate cylinder with a perfect round basis in a 2 points perspective. The left tower in the back seems completly off. I tried multiple calculation but every time it's weird. How do you calculate a perfect square on a 2 points perspective (which is what I tried to make my cylinder) ? The method I found looked correct but the result isn't convincing at all... Any help or link would be appreciated :)