Perspective grid

[Novalis-dt]

It would be really cool to have a perspective grid,
supporting 1, 2, or 3-point perspective. This would be
helpful in drawing and aligning 3d scenes. The UI
would be a menu item: "create perspective grid", which
would pop up a dialog asking how many points. Then the
user would click "ok", and their cursor would change to
crosshairs or something (to remind users that they're
creating a grid).

The first click would set a horizon line. The next
clicks would set vanishing points.

In 1-point perspective, there are three major sorts of
lines: horizontal, vertical, and depth. A grid should
probably show at most two of those at once, so there
will need to be three icons at the bottom of the
screen: h+v, h+d, v+d.

In 2-point perspective, there are two kinds of
"horizontal" lines (neither of which is horizontal wrt
the document), plus vertical.

In 3-point perspective, even verticals aren't always
vertical.

[Buliabyak-users (buliabyak-users)]

njh was working on some non-rect grid types, don't know if
they were perspective or not. You might ask him if he has
some code to resurrect.

Moving to RFEs.

[Horkana-users (horkana-users)]

Corel Painter has an interactive 3D/Perspective grid you
should take a look at.

[Horkana-users (horkana-users)]

bumping priority

there have been several requests to abuse the Guides system
to allow guides in all directions but a perspective grid is
the right solution to that problem, much more flexible than
overloading guides with ideas they were never designed for

I've closed several of them as duplicates of each other or
this request
https://sourceforge.net/tracker/?func=detail&atid=604309&aid=948307&group_id=93438

[A-charytoniuk (a-charytoniuk)]

Originator: NO

I fully agree - this would be extremely helpfull feature, especially if
it's interactive (not only created once, but available for reedition by
dragging some defined points) and when the lines are working as guides
(with all the snap functionality).

[Johan Engelen (johanengelen)]

Check out the new axonometric grid !

[Zingus (zingus)]

Still axonometry is NOT perspective.

And axonometric grid doesn't really easen the pain of doing fake-3d drawing in inkscape.

I believe the new grid is good to have, but this bug shouldn't really be considered fixed.

[su_v (suv-lp)]

> Still axonometry is NOT perspective.

Confirmed, reopening.

[su_v (suv-lp)]

Related:
Bug #171586 “Perspective 2-point and 3-point grids”
<https://bugs.launchpad.net/inkscape/+bug/171586>

[benjamin (jesuisbenjamin)]

This would be awesome, even a one point grid would be enough to start with. Can't wait to see this happening.

[grey tomorrow (gtomorrow)]

Hi - thanks for reporting this bug, I've manually migrated it to Inkscape's new bug tracker on GitLab, and closed it here.

Please feel free to file new bugs about the issues you're seeing at
https://inkscape.org/report .

Moved to: https://gitlab.com/inkscape/inbox/issues/3694
Closed by: https://gitlab.com/greytomorrow