The Vanishing Point in Krita is very helpful. I first saw its use in Autodesk SketchBook and was very impressed by it. I’m so glad that Krita has it! ArtRage has the perspective grid, but it’s not as flexible as the Vanishing Point. However, without a shortcut to turn on/off (in real-time) “snap to assistants” it can be a bit troublesome to use. Right now, I only use perspective theory casually. I have no intention of having it 100% accurate all the time, and therefore do not need to have “snap to assistants” on all the time. I find it extremely inconvenient to have to turn on the snap manually (and then off again) when I only need just a few lines in correct perspective.
Krita needs a shortcut for this. If there is, I can’t seem to find it.