UV island select won't select contiguous faces when the polygons UV data flips from positive to negative inside an island #50970

New Issue

Frankie Hobbins · 2017-03-16T19:44:04+01:00

Frankie Hobbins commented

2017-03-16 19:44:04 +01:00

System Information
windows 10, 2600k, gtx 970

Blender Version
Broken: 2.75 onwards
Worked: 2.74

Short description of error
When trying to island select UVs, if a polygon UV is "flipped" compared to the initially selected faced the island select will ignore the flipped face.

by flipped I mean the texture appears backwards or upside down compared to the texture UVs on a non flipped face

Exact steps for others to reproduce the error

Create a box
UV unwrap > project from view
Go to UV window
Island select the box
Move selection
Notice, the box is split in half
Expected, the box keeps together

2.75 onwards = https://dl.dropboxusercontent.com/u/1693140/uvs.gif

2.74 = https://dl.dropboxusercontent.com/u/1693140/uvs2.gif

example of real world usage = https://dl.dropboxusercontent.com/u/1693140/uvleftbehind.gif

notes

it was hard to tell if this is a design decision, if so would be great to have the old select back as an option

**System Information** windows 10, 2600k, gtx 970 **Blender Version** Broken: 2.75 onwards Worked: 2.74 **Short description of error** When trying to island select UVs, if a polygon UV is "flipped" compared to the initially selected faced the island select will ignore the flipped face. by flipped I mean the texture appears backwards or upside down compared to the texture UVs on a non flipped face **Exact steps for others to reproduce the error** Create a box UV unwrap > project from view Go to UV window Island select the box Move selection Notice, the box is split in half Expected, the box keeps together 2.75 onwards = https://dl.dropboxusercontent.com/u/1693140/uvs.gif 2.74 = https://dl.dropboxusercontent.com/u/1693140/uvs2.gif example of real world usage = https://dl.dropboxusercontent.com/u/1693140/uvleftbehind.gif **notes** it was hard to tell if this is a design decision, if so would be great to have the old select back as an option

Frankie Hobbins commented

2017-03-16 19:44:04 +01:00

Changed status to: 'Open'

Frankie Hobbins commented

2017-03-16 19:44:04 +01:00

Added subscriber: @FrankieHobbins

Germano Cavalcante commented

2017-03-17 13:10:17 +01:00

Added subscriber: @mano-wii

Campbell Barton was assigned by Germano Cavalcante

2017-03-17 13:10:17 +01:00

Germano Cavalcante commented

2017-03-17 13:10:17 +01:00

This was caused by fix bca4e9c81d
It seems that the use_winding option of BM_uv_vert_map_create is not working correctly.

This was caused by fix bca4e9c81d86 It seems that the `use_winding` option of `BM_uv_vert_map_create` is not working correctly.

Campbell Barton commented

2017-03-18 15:32:58 +01:00

Note that for meshes we have option to delimit: Normal, Material, Seam... etc.

If this is made optional would be nice to keep similar convention,
Although we really miss having a redo-toolbar for uv operators.

Note that for meshes we have option to delimit: Normal, Material, Seam... etc. If this is made optional would be nice to keep similar convention, Although we really miss having a redo-toolbar for uv operators.

Campbell Barton commented

2017-07-13 06:26:11 +02:00

Changed status from 'Open' to: 'Resolved'

Campbell Barton closed this issue

2017-07-13 06:26:11 +02:00

blender-admin commented

2017-07-13 06:32:04 +02:00

This issue was referenced by e656dcd365

This issue was referenced by e656dcd36536c0d6cf33cdd8336e73292986ae3a

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UV island select won't select contiguous faces when the polygons UV data flips from positive to negative inside an island #50970