Align rotation per uv island #78399

New Issue

Daniel Bystedt · 2020-06-28T22:46:18+02:00

Daniel Bystedt commented

2020-06-28 22:46:18 +02:00

New operator with the following options for align rotation:
Auto

find edges that aligns to each other within -45 to +45 degrees in UV space
Align the uv island sho that the average of all those edges is aligned to 0 degrees (i.e along the Y/V axis)
World space X, Y, Z
find edges that aligns to each other within 90 degrees along world axis X, Y or Z
Align the uv island to the average of all those edges
Selected edge

Align rotation - auto
- Starting point

Auto align rotation to UV space

{F8652116, height = 300}

Desired result

I’m not sure what the best algorithm would be. With simpler box shapes it would perhaps work with calculating the angle of all edges and filter out the ones that have -45 degree to +45 degree. Calculate the average of all those edges and then align the rotation of that average edge value so the degree is 0.
{F8652120, height = 300}

Align rotation - to world axis

Make options to align other axes in object space as well (x, y)

{F8652123, height = 300}

Starting point

Align rotation 3d viewport axis (align to 3d world +Z in this example)

{F8652125, height = 300}

Desired result

Filter out edges that aims along the Z axis (or close to it). Then align rotation of the uv island so that those edges aims along the V axis in UV space.

{F8652127, height = 300}

Align rotation - to selected edge

Starting point

Align rotation to selected edge.

{F8652132, height = 300}

Desired result

Rotate the uv island so that the selected edge is aligned to aim along the V axis in UV space.

Should work per uv island where one edge is selected per uv island

{F8652135, height = 300}

New operator with the following options for align rotation: **Auto** - find edges that aligns to each other within -45 to +45 degrees in UV space - Align the uv island sho that the average of all those edges is aligned to 0 degrees (i.e along the Y/V axis) **World space X, Y, Z** - find edges that aligns to each other within 90 degrees along world axis X, Y or Z - Align the uv island to the average of all those edges **Selected edge** --- - Align rotation - auto - Starting point Auto align rotation to UV space {[F8652116](https://archive.blender.org/developer/F8652116/image.png), height = 300} **Desired result** I’m not sure what the best algorithm would be. With simpler box shapes it would perhaps work with calculating the angle of all edges and filter out the ones that have -45 degree to +45 degree. Calculate the average of all those edges and then align the rotation of that average edge value so the degree is 0. {[F8652120](https://archive.blender.org/developer/F8652120/image.png), height = 300} --- ## Align rotation - to world axis Make options to align other axes in object space as well (x, y) {[F8652123](https://archive.blender.org/developer/F8652123/image.png), height = 300} **Starting point** Align rotation 3d viewport axis (align to 3d world +Z in this example) {[F8652125](https://archive.blender.org/developer/F8652125/image.png), height = 300} **Desired result** Filter out edges that aims along the Z axis (or close to it). Then align rotation of the uv island so that those edges aims along the V axis in UV space. {[F8652127](https://archive.blender.org/developer/F8652127/image.png), height = 300} --- ## Align rotation - to selected edge **Starting point** Align rotation to selected edge. {[F8652132](https://archive.blender.org/developer/F8652132/image.png), height = 300} **Desired result** Rotate the uv island so that the selected edge is aligned to aim along the V axis in UV space. Should work per uv island where one edge is selected per uv island {[F8652135](https://archive.blender.org/developer/F8652135/image.png), height = 300}

Daniel Bystedt commented

2020-06-28 22:46:18 +02:00

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