Let's make Perspective grid more useful

Develop Feature Requests
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Why I want to keep it at all while there are other perspective assistants?

It has a nice grid that lets our brain perceive the 3D better than for example just a vanishing point assistant (2pp does a better job than VP but I think Perspective grid is even better).

However it’s not exactly super useful right now. I want to improve it.

IMPROVEMENTS - all ideas I consider - suggest yours!

Improved creating new adjacent Perspective grids:

  • F104 When grabbing by the handle on the sides, the created perspective grid will match the vanishing points of the parent Perspective grid:
    • this is how it behaves right now:
      obraz
      obraz1836×1158 68.1 KB
    • when extended in kinda horizontal direction, it would be like this:
      obraz
      obraz1558×816 15.7 KB
    • when extended in more of a vertical direction, it would look like this:
      obraz
      obraz920×974 13.4 KB

      (there is a valid question but how would it know where the vertical is?, and sure, in 2pp and 3pp perspective it should create different grids; but the basic option would be 2pp, and the vertical line will just be the line perpendicular to the horizon line, and the horizon line can be calculated based on the handles of the grid).
    • it would work like snapping, so it will be easy to get the grid you want, hopefully :slight_smile:
    • the purpose is to make it easy to create a room in at least 2pp.
  • F5 When grabbing by the edge, it will extend in that direction while keeping the horizon and the vanishing points.
    • right now it creates a new assistant, and if you grab by the handle, it creates a new Perspective grid

Improved perspective-aware modifications

  • F117 Perspective and Perspecrive Ellipse scale up and down remembering about perspective
  • F138 Extend Perspective grid in a specific direction by a specific number of cells rows/columns (especially when in the “perfect squares inside the assistant” mode).
  • F144 Move Perspective in all three directions – to/from both Vps and vertically, while perspective-aware

Improved snapping to all other perspective-based assistants and tools:

  • F62 Snapping Perspective’s VPs to other Perspective’s VPs, 2pp Vp’s, and VP assistants
  • F136 Transform tool perspective mode should snap to Perspective and Persp. Ellipse handles
  • F128 Snap Perspective horizon to horizon line in 2pp
  • F129 Snap Perspective Vps to horizon lines between VP assistants (tedious, but should be doable…)

Improved perception of perspective:

  • F133 Perfect squares in Perspective (in grid), and perfect square tetragons in Persp. Ellipse and Perspective grid (I don’t know how to do it yet, I’d need good math for that)
  • F11 Add a way to measure distance in Perspective (the way Ruler now has divisions, it could have Perspective ones, or there could be another way - it might be related to F133, I need a mockup if someone wants them to be different)

Improved painting/drawing

  • F119 When using Perspective grid (if you start drawing inside of it and use snapping), limit the points to those inside the Perspective grid (useful when using Perspective sensor for Size etc.)

Others

  • (most probably will do) F108 - only the handles of the currently selected assistant(s) can be moved.

FEEDBACK

Go ahead and tell me how you use the grid or how you’d like to use it, what are your biggest issues with it, and all other ideas for the Perspective grid you have!

If you have ideas for other assistants or maybe for an entirely new assistant, you can write it here: Planned changes to assistants coming in 2022 (or later)

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