(Though I’d like to just make 2pp and 3pp in one assistant, but we’ll see. Maybe with dedicated 3pp assistant there will be a solution for that, too. For 3 point perspective it’s more complicated since you can have one of those points visible but then the horizon is either very low or very high, so the other will for sure be hidden. For 2 point perspective, I can easily say that if you keep both of those points outside of the canvas, the result should be pleasant enough for the eye. I did find that with the new 2pp assistant, it’s easier to see with the grid, also there are always those two points that are somewhat stably staying on the line of the “center of vision”. I think it would be a much better idea that for those who don’t have yet the intuition needed for choosing the distance between the vanishing points (which comes with experience) that the chosen perspective would kind of show whether it’s roughly correct or not, than restricting the vanishing point placement. Krita restraining distance between the vanishing point to a specific number even depending on the height of the canvas would be limiting. It’s still looking correct, right? While the vanishing points are further away in relation to the canvas height). Another thing is that you don’t always have to show whole vision as a human is capable of sometimes you want to just show a “zoom in” of a scene, which would result in a higher distance between vanishing points (take any perspective drawing, then crop it 1/3 from every side. As said, you can be making comic, which makes the height of the painting smaller, and thus smaller distance desirable. In the layman terms, the perceived “correctness” of the vanishing point distance depends on the height of the painting you’re going to make (height, because I think the height is more limited in human vision? So if you make the height too big (= vanishing points too close to each other), humans will notice they see more than they expect to see?).

Also no perspective is correct because people have peripheral vision… Every perspective is correct, as long as you follow the rules like all parallel (in 3D) lines vanish in the same vanishing point and all lines on one plane vanish into vanishing points on the same line (horizon). I think you’re looking at this problem from a very wrong point of view. So what’s the downside in making it accurate from the default human eyes? Isn’t it supposed to be in that way eventually(at least as an option)?

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