Data Transfer Modifier don't work. #46469

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Andrew · 2015-10-13T11:38:33+02:00

Andrew commented

2015-10-13 11:38:33 +02:00

In blender 2.76, 2.76 RC2/RC3 Vertex data do not transfer when using modes: Nearest face interpolated, nearest face vertex. The rest seems work just fine. Nearest face interpolated produce the best results, pls fix it.

Andrew commented

2015-10-13 11:38:33 +02:00

Changed status to: 'Open'

Andrew commented

2015-10-13 11:38:33 +02:00

Added subscriber: @AndrewShi

Bastien Montagne commented

2015-10-13 12:51:36 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2015-10-13 12:51:36 +02:00

Please follow our submission template and guidelines and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Please follow our submission template and guidelines and make a complete, valid bug report, with required info, precise description of the issue, precise steps to reproduce it, **small and simple** .blend and/or other files to do so if needed, etc.

Bastien Montagne commented

2015-10-21 08:21:27 +02:00

No news since one week…

Bastien Montagne commented

2015-10-21 08:22:14 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2015-10-21 08:22:14 +02:00

Bastien Montagne self-assigned this 2015-10-21 08:22:14 +02:00

Alex Lauderdale commented

2015-11-12 00:34:23 +01:00

Added subscriber: @Tzolkat

Alex Lauderdale commented

2015-11-12 00:34:23 +01:00

I can confirm this issue. I have limited rigging experience and have mostly been working on assets rigged by others, but I can try to make a .blend if it is absolutely necessary.

Steps to reproduce:

Create and rig a mesh, confirm that vertex groups and weights for the bones exist.
Create a second mesh and fit it over the rigged/skinned one.
Select the mesh to transfer to, then shift-select the mesh to transfer from.
Select data transfer, vertex groups.
Select 'nearest face interpolated' for the vertex mapping.
Select the object that was supposed to have weights applied.
Switch to weight paint mode and observe that no weights were transferred.

Affects versions: 2.76 RC1, 2.76 RC2, 2.76 RC3, 2.76, 2.76a, 2.76b.

I can confirm this issue. I have limited rigging experience and have mostly been working on assets rigged by others, but I can try to make a .blend if it is absolutely necessary. Steps to reproduce: 1) Create and rig a mesh, confirm that vertex groups and weights for the bones exist. 2) Create a second mesh and fit it over the rigged/skinned one. 3) Select the mesh to transfer to, then shift-select the mesh to transfer from. 4) Select data transfer, vertex groups. 5) Select 'nearest face interpolated' for the vertex mapping. 6) Select the object that was supposed to have weights applied. 7) Switch to weight paint mode and observe that no weights were transferred. Affects versions: 2.76 RC1, 2.76 RC2, 2.76 RC3, 2.76, 2.76a, 2.76b.

Bastien Montagne commented

2015-11-12 06:48:08 +01:00

Did you try the latest build from our buildbot? Otherwise, yes, please attach a .blend file to reproduce the issue.

Did you try the latest build from [our buildbot](https://builder.blender.org/download)? Otherwise, yes, please attach a .blend file to reproduce the issue.

Alex Lauderdale commented

2015-11-12 23:48:35 +01:00

I can still reproduce this issue in the latest version I could find from build-bot, 8c84a18.

From what I can tell, it behaves more unpredictably than just not working. In the model I'm working in, which I can't publish, the entire mesh gets weighted to a single bone which is not even nearby. That may have been a glitch, but in any case, it doesn't look like certain vertex mapping modes are working correctly when transferring vertex weights by any method I know of, including the modifier.

I'm attaching a simple .blend file I made which I'm able to reproduce the issue with: data_trans_test.blend

I can still reproduce this issue in the latest version I could find from build-bot, 8c84a18. From what I can tell, it behaves more unpredictably than just not working. In the model I'm working in, which I can't publish, the entire mesh gets weighted to a single bone which is not even nearby. That may have been a glitch, but in any case, it doesn't look like certain vertex mapping modes are working correctly when transferring vertex weights by any method I know of, including the modifier. I'm attaching a simple .blend file I made which I'm able to reproduce the issue with: [data_trans_test.blend](https://archive.blender.org/developer/F254212/data_trans_test.blend)

Bastien Montagne commented

2015-11-13 20:30:33 +01:00

Changed status from 'Archived' to: 'Open'

Bastien Montagne reopened this issue

2015-11-13 20:30:33 +01:00

Bastien Montagne commented

2015-11-13 20:30:33 +01:00

Triple sigh Bug confirmed, regression due to typo in new looptri changes (which affects computation of mapping between two meshes)… Kinda sad initial author did not do his share of the work, we could have had this fixed in 2.76b :(

*Triple sigh* Bug confirmed, regression due to typo in new looptri changes (which affects computation of mapping between two meshes)… Kinda sad initial author did not do his share of the work, we could have had this fixed in 2.76b :(

Bastien Montagne commented

2015-11-13 20:31:05 +01:00

And thanks @Tzolkat for the file, btw. :)

blender-admin commented

2015-11-13 20:31:34 +01:00

This issue was referenced by 1e361880a9

This issue was referenced by 1e361880a9bcfba136a556c4201ca96dbdd88eb1

Bastien Montagne commented

2015-11-13 20:33:44 +01:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2015-11-13 20:33:44 +01:00

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Data Transfer Modifier don't work. #46469