Some terms:
Cone of Vision=COV
Horizon Line=HL
Vanishing Point=VP
I feel like krita allows more than 3 VPs great, but manually aligning those VPs to HL is a nightmare.
Aligning VPs to HL is too slow, because there is no function to snap to HL.
Suppose I want to draw a complex scene graph (requires more than 3vp.)
I can’t quickly align multiple VPs to HL, I can only manually align them slowly,
For example the picture below.
This is what I took from my teaching book on Learning Perspective.
This picture can be a good illustration of the situation greater than 3vp.
So is it possible to add HL? And allow VP can be adsorbed to HL?
I also want something like COV.
I haven’t seen a linear perspective tool with COV in any painting software.
I know about COVs etc. from instructable books on linear perspective, but they don’t exist in any painting software’s linear perspective tools.
There are many other such situations, which are available in the linear perspective teaching books, but the linear perspective function of the painting software does not provide.
Even some software (such as sai2) omit the linear perspective as 1VP, 2VP, 3VP to distinguish, which is not rigorous. This approach is also difficult to apply to the complex scene graphs I mentioned above.
Also I think the linear perspective of the Lazy Nezumi Pro does a good job.
Maybe refer to it to improve.
Lazy Nezumi Pro - Linear Perspective Ruler