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Loopanar

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Loopanar is a collection of tools partly adapted from Wings3D. They are available on the Loopanar tab in the right panel (in the 3D view or UV editor) in mesh edit mode. You can also assign hotkeys for quick access.

Mesh tools

The following tools are included:

Grow Loop
Extend all selected loop fragments by one edge on either side (if possible).
Operator name for hotkey assignment: mesh.lpnr_grow_loop.

Shrink Loop
Deselect both ends of all selected loop fragments.
Operator name for hotkey assignment: mesh.lpnr_shrink_loop.

Grow Ring
Extend all selected ring fragments by one edge on either side (if possible).
Operator name for hotkey assignment: mesh.lpnr_grow_ring.

Shrink Ring
Deselect both ends of all selected ring fragments.
Operator name for hotkey assignment: mesh.lpnr_shrink_ring.

Select Bounded Loop
Select the gaps between selected loop fragments. If there are no gaps, just select the entire loop or loops.
Operator name for hotkey assignment: mesh.lpnr_select_bounded_loop.

Select Bounded Ring
Select the gaps between selected ring fragments. If there are no gaps, just select the entire ring or rings.
Operator name for hotkey assignment: mesh.lpnr_select_bounded_ring.

Video about the six tools above: https://www.youtube.com/watch?v=qI5j05e8Hyo

Equalize Edges
Equalize the lengths of edges in selected chains. This command ignores any selection fragments where edge paths fork. Closed chains turn into polyline circles; open chains turn into straight lines with evenly spaced vertices.
Equalize Edges does the same thing as the first step of Wings' Circularise command without secondary selections.
Video: https://www.youtube.com/watch?v=mldDHnqoi9c
Operator name for hotkey assignment: mesh.eq_edges.

Line Up Edges
Similar to Equalize Edges but keeps the relative edge lengths proportional.
Video: https://www.youtube.com/watch?v=WeR1XN8Z1-g
Operator name for hotkey assignment: mesh.line_up_edges.

Delete Selection
This is a convenience operator that simply bypasses the component deletion prompt. It deletes components based on the current selection mode.
Operator name for hotkey assignment: mesh.lpnr_delete_mode.

Put On
Affix a face, and everything that's attached to it, to another face. (Commonly followed by a Bridge.)
For the command to work, select two faces: first the source, then the destination. The inactive selected face and its piece of mesh will be put on the active selected face.
The Turn angle parameter lets you turn the piece about its new alignment axis.
The Only what's connected option lets you place just the contiguous piece that has the selected face, instead of placing the entire geometry of the object.
Video: https://www.youtube.com/watch?v=O7ZmqPnfIMU
Operator name for hotkey assignment: mesh.lpnr_put_on.

Connect Edges
This operation is an alternative to Blender's Subdivide and behaves more similarly to the Wings3D Connect operation in edge mode. It leaves the newly-created edges selected.
Operator name for hotkey assignment: mesh.lpnr_connect.

Mirror
Welds a mirrored copy of the mesh onto each selected face.
Video: https://www.youtube.com/watch?v=JCttVQKTd5E
Operator name for hotkey assignment: mesh.lpnr_mirror.

Bisect Face Pair
Makes a pair of selected faces (exactly two must be selected) bisect each other by their planes. This is useful, for example, when you are cleaning up brush-based game level geometry exported from a map editor.
Operator name for hotkey assignment: mesh.lpnr_bisect_face_pair.

UV tools

Equalize
Equalize the lengths of UV edges in selected chains. This command ignores any selection fragments where edge paths fork. Closed chains turn into circles; open chains turn into straight lines with evenly spaced UVs.
Video: https://www.youtube.com/watch?v=v2ClqttCWRo
Operator name for hotkey assignment: uv.equalize.

Line Up
Similar to Equalize but keeps the realative edge lengths proportional.
Video: https://www.youtube.com/watch?v=WeR1XN8Z1-g
Operator name for hotkey assignment: uv.line_up.

Download

Get loopanar-*.*.*.zip from https://sourceforge.net/projects/blendamajigs/files/loopanar

Setup

  1. Open Blender's User Preferences window and go to the Addons tab.
  2. Click Install and specify the downloaded loopanar-*.*.*.zip file.
  3. Enable the Mesh: Loopanar addon.

Changelog

0.7.210413

  • The Rotate Fragments and Scale Fragments UV tools have been removed. This functionality is available in Blender out-of-the-box today.
  • All tools now work correctly in multi-object edit mode.
  • The Bisect Face Pair tool has been added.
  • For the Put On tool, you can now select if you want to put just the contiguous piece or the entire object geometry.

0.6.20191019

  • This is the initial port of the Zaloopok toolset to Blender 2.80 and later.
  • The selection conversion tools were not ported, because Blender already has them.
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