straighten edges and unfold uv island #78404

New Issue

Daniel Bystedt · 2020-06-28T23:15:25+02:00

Daniel Bystedt commented

2020-06-28 23:15:25 +02:00

Straighten selection and unwrap unselected vertices

Starting point

The uv has pretty wonky topology.

Desired result

The selection is straightened and the non selected uv’s of the UV island is unwrapped. Should work on multiple uv islands

Suggested approach:

Store
- Original pinning
- Original seams
Run “seams from islands”
Remove all pins
Pin selection
Align auto on selection
Unwrap
Restore
- Original pinning
- Original seams

Straighten selection and unwrap unselected vertices **Starting point** The uv has pretty wonky topology. ![image](https://archive.blender.org/developer/F8652190/image.png) **Desired result** The selection is straightened and the non selected uv’s of the UV island is unwrapped. Should work on multiple uv islands Suggested approach: - Store - Original pinning - Original seams - Run “seams from islands” - Remove all pins - Pin selection - Align auto on selection - Unwrap - Restore - Original pinning - Original seams ![image](https://archive.blender.org/developer/F8652192/image.png)

❤️ 2

Daniel Bystedt commented

2020-06-28 23:15:25 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Daniel Bystedt commented

2020-06-28 23:15:25 +02:00

Added subscriber: @DanielBystedt

Eugene Du commented

2020-06-29 11:00:41 +02:00

Added subscriber: @APEC

Johny Zlo commented

2020-07-20 11:27:34 +02:00

Added subscriber: @johny.zlo

MB commented

2020-09-27 02:44:02 +02:00

Added subscriber: @no4me

Julia Blardat commented

2021-01-06 11:59:48 +01:00

Added subscriber: @Latarek

Paul Kotelevets commented

2021-04-19 23:31:05 +02:00

Added subscriber: @1D_Inc

Paul Kotelevets commented

2021-04-19 23:31:05 +02:00

At one time I ordered several instruments for different straightening purposes.
First one - to 1D_scripts toolset > Print loop tool, that keeps overall loop length and the original ratio of edge lengths trims workflow (is common for Architectural modeling, including gamedev)

Second one -Smart UV addon > Spread Loop, that restores the original ratio of edge lengths for selected loop.
Both are used often with Rectify function from Textools I supported a bit. There were attempts to make rectify affect multiple islands for unwrapping tubes.
It is hard to find nice UV developer for Blender, so this development was a bit fragmented.

At one time I ordered several instruments for different straightening purposes. First one - to **1D_scripts toolset > Print loop tool**, that keeps overall loop length and the original ratio of edge lengths [trims workflow ](https://docs.google.com/presentation/d/1jT8KQnHRx8EOsAUfnuk0-ldAPztOdNHjARu1xl4uoz4/edit#slide=id.g603cae9701_3_33) (is common for Architectural modeling, including gamedev) ![image.png](https://archive.blender.org/developer/F10003324/image.png) Second one -**Smart UV addon > Spread Loop**, that [restores the original ratio of edge lengths ](https://blenderartists.org/t/smart-uv-1-4-4-spread-loop/679125) for selected loop. Both are used often with **Rectify function from Textools** I supported a bit. There were attempts to make rectify affect multiple islands for unwrapping tubes. It is hard to find nice UV developer for Blender, so this development was a bit fragmented.

Chris Blackbourn self-assigned this 2022-11-17 00:53:38 +01:00

Daniel Bystedt added this to the Modeling project 2023-03-14 08:54:10 +01:00

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straighten edges and unfold uv island #78404