Pack to the same bounding box #78396

New Issue

Daniel Bystedt · 2020-06-28T22:05:53+02:00

Daniel Bystedt commented

2020-06-28 22:05:53 +02:00

Additional property option to the pack islands operator.

Related tasks
#78395 (Unwrap to same bounding box in UV space)

Starting point

Selected UV islands will be packed

Blue outline = original selection bounding box

Undesired result

After packing, the selected uv islands overlap with other uv islands.

Desired result

Selected uv islands are packed into the original selection bounding box.

Additional property option to the pack islands operator. **Related tasks** #78395 (Unwrap to same bounding box in UV space) **Starting point** Selected UV islands will be packed Blue outline = original selection bounding box ![image](https://archive.blender.org/developer/F8652072/image.png) **Undesired result** After packing, the selected uv islands overlap with other uv islands. ![image](https://archive.blender.org/developer/F8652074/image.png) **Desired result** Selected uv islands are packed into the original selection bounding box. ![image](https://archive.blender.org/developer/F8652076/image.png)

Daniel Bystedt commented

2020-06-28 22:05:53 +02:00

Added subscriber: @DanielBystedt

Eugene Du commented

2020-06-29 11:10:51 +02:00

Added subscriber: @APEC

juan gargallo commented

2020-07-12 18:56:08 +02:00

Added subscriber: @txo

juan gargallo commented

2020-07-12 18:56:08 +02:00

I really like the idea, altough I think it could be more useful to have an option to use a custom packing region (like Ctrl+B in render mode, as currently both B and Ctrl B do the same thing).
My reasoning is that your example works well because everything is pretty neatly organized already, but a lot of times I believe it may not be the case. Maybe you are in the first stages of packing things, and you may change your idea along the way as to how to layout your asset's uvs, so you may have things somewhat scattered around at times, or with islands overlapping. Or maybe you are working with UDIMS, and you want to repack some uvs from different tiles. In those cases, the original selection may not be ideal, or even useful at all.

If we could define the bounding box to pack the islands independently of where they are originally, I think it would be much better.
Maybe both concepts can coexists, as there could be an option to use a custom packing region, and one of the fallback options could be that if the user hasn't defined any region, use the selection's original bounding box as Daniel says.

I really like the idea, altough I think it could be more useful to have an option to use a custom packing region (like Ctrl+B in render mode, as currently both B and Ctrl B do the same thing). My reasoning is that your example works well because everything is pretty neatly organized already, but a lot of times I believe it may not be the case. Maybe you are in the first stages of packing things, and you may change your idea along the way as to how to layout your asset's uvs, so you may have things somewhat scattered around at times, or with islands overlapping. Or maybe you are working with UDIMS, and you want to repack some uvs from different tiles. In those cases, the original selection may not be ideal, or even useful at all. If we could define the bounding box to pack the islands independently of where they are originally, I think it would be much better. Maybe both concepts can coexists, as there could be an option to use a custom packing region, and one of the fallback options could be that if the user hasn't defined any region, use the selection's original bounding box as Daniel says. ![ORIGINAL BBOX VS USER DEFINED.jpg](https://archive.blender.org/developer/F8689188/ORIGINAL_BBOX_VS_USER_DEFINED.jpg)

Daniel Bystedt commented

2020-07-12 22:51:57 +02:00

In #78396#977749, @txo wrote:
I really like the idea, altough I think it could be more useful to have an option to use a custom packing region (like Ctrl+B in render mode, as currently both B and Ctrl B do the same thing).
My reasoning is that your example works well because everything is pretty neatly organized already, but a lot of times I believe it may not be the case. Maybe you are in the first stages of packing things, and you may change your idea along the way as to how to layout your asset's uvs, so you may have things somewhat scattered around at times, or with islands overlapping. Or maybe you are working with UDIMS, and you want to repack some uvs from different tiles. In those cases, the original selection may not be ideal, or even useful at all.

If we could define the bounding box to pack the islands independently of where they are originally, I think it would be much better.
Maybe both concepts can coexists, as there could be an option to use a custom packing region, and one of the fallback options could be that if the user hasn't defined any region, use the selection's original bounding box as Daniel says.

The feature you are describing is already added as a task. #78398 (Pack to box region in uv editor)

I like your suggestion about adding a hotkey for the box. The hotkey CTRL + B is currently occupied by select box + pinned, but perhaps it can be changed to CTRL + SHIFT + B in order to give room for this feature as a hotkey

> In #78396#977749, @txo wrote: > I really like the idea, altough I think it could be more useful to have an option to use a custom packing region (like Ctrl+B in render mode, as currently both B and Ctrl B do the same thing). > My reasoning is that your example works well because everything is pretty neatly organized already, but a lot of times I believe it may not be the case. Maybe you are in the first stages of packing things, and you may change your idea along the way as to how to layout your asset's uvs, so you may have things somewhat scattered around at times, or with islands overlapping. Or maybe you are working with UDIMS, and you want to repack some uvs from different tiles. In those cases, the original selection may not be ideal, or even useful at all. > > If we could define the bounding box to pack the islands independently of where they are originally, I think it would be much better. > Maybe both concepts can coexists, as there could be an option to use a custom packing region, and one of the fallback options could be that if the user hasn't defined any region, use the selection's original bounding box as Daniel says. > > ![ORIGINAL BBOX VS USER DEFINED.jpg](https://archive.blender.org/developer/F8689188/ORIGINAL_BBOX_VS_USER_DEFINED.jpg) The feature you are describing is already added as a task. #78398 (Pack to box region in uv editor) I like your suggestion about adding a hotkey for the box. The hotkey `CTRL + B` is currently occupied by `select box + pinned`, but perhaps it can be changed to `CTRL + SHIFT + B` in order to give room for this feature as a hotkey

juan gargallo commented

2020-07-13 00:04:34 +02:00

Oh,you're right, I didn't see those. My bad.
Yeah, a hotkey would be very useful productivity-wise, specially combining it with a kind of live packing (like the live unwrapping). It is a feature I liked a lot in uvlayout,that just by creating a box, the packing were processed immediately whitin the region. You could optimize the layout and the uvspace quite a bit really quickly.

Oh,you're right, I didn't see those. My bad. Yeah, a hotkey would be very useful productivity-wise, specially combining it with a kind of live packing (like the live unwrapping). It is a feature I liked a lot in *uvlayout*,that just by creating a box, the packing were processed immediately whitin the region. You could optimize the layout and the uvspace quite a bit really quickly.

Jakub Badin commented

2020-07-15 11:19:45 +02:00

Added subscriber: @Jakuba