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Fix: Paint loop select to use distance to edge #108809

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Christoph Lendenfeld wants to merge 3 commits from ChrisLend/blender:paint_distance_to_line into main
pull from: ChrisLend/blender:paint_distance_to_line
merge into: blender:main

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Conversation 1 Commits 3 Files Changed 3 +56 -8
Christoph Lendenfeld commented 2023-06-09 15:47:17 +02:00
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The original implementation checked the distance in screen space to the middle point of the surrounding edges.
This had the issue of not selecting the closest edge when the face was very elongated and the user clicked close to a corner.

This PR fixes that by

  • adding a function to calculate the distance of a point to a line defined by two points
  • projecting the individual vertices into screenspace and feeding those into the mentioned function

The only remaining weak point is for that to work, both vertices have to be on screen.
This could potentially fixed by projecting the cursor value into world space, and doing all the calculations in 3D.
But I am not certain how that is best done.

The original implementation checked the distance in screen space to the middle point of the surrounding edges. This had the issue of not selecting the closest edge when the face was very elongated and the user clicked close to a corner. This PR fixes that by * adding a function to calculate the distance of a point to a line defined by two points * projecting the individual vertices into screenspace and feeding those into the mentioned function The only remaining weak point is for that to work, both vertices have to be on screen. This could potentially fixed by projecting the cursor value into world space, and doing all the calculations in 3D. But I am not certain how that is best done.
Christoph Lendenfeld added 1 commit 2023-06-09 15:47:29 +02:00
Christoph Lendenfeld added 1 commit 2023-06-09 15:58:24 +02:00
Christoph Lendenfeld requested review from Hans Goudey 2023-06-09 15:58:40 +02:00
Christoph Lendenfeld added 1 commit 2023-06-09 16:01:20 +02:00
Christoph Lendenfeld commented 2023-12-12 09:39:47 +01:00
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closing this PR since it has become stale and I didn't see any real world bug reports about the issue

closing this PR since it has become stale and I didn't see any real world bug reports about the issue

Pull request closed

Please reopen this pull request to perform a merge.
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