topic Re: Pose Editor Bug - freezes painting skinning weights in Maya Animation and Rigging Forum

Pose Editor Bug - freezes painting skinning weights

lucasridley — Sat, 04 May 2019 05:27:34 GMT

I believe I've found a bug or a major workflow issue.

If you bind skin to joints, then use pose editor and add a pose (meant to be a corrective or otherwise), then turn off edit for that pose, you can no longer adjust the skin weights.

I've repeated this on my rig several times and a simple cylinder with two joints. Every time, as soon as I create a pose with pose editor I can no longer paint skin weights after that point.

Can someone please let me know how to use Pose Editor AND paint skin weights?

As it currently stands it appears you would have to completely finalize all skin weights on a character before doing any corrective pose editor changes and after that point, it's irreversible to make any further changes to your skin weights. There's no mention of this issue in any documentation for these tools that I've found. It seems incredibly bizarre to create a tool, and make it be a point-of-no-return for your rig's weights and not mention that in the documentation. It's really thrown a wrench in my current project and will have to redo all my work. (Even after deleting that pose editor pose you still cannot paint weights, it appears as though it's totally destructive and irreversible).

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Tue, 07 May 2019 04:01:21 GMT

bump

Re: Pose Editor Bug - freezes painting skinning weights

mspeer — Tue, 07 May 2019 04:08:59 GMT

Hi!

I was not able to reproduce this.

What Maya version are you using?

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Thu, 09 May 2019 10:22:45 GMT

2018.5

When you tried it you were able to make a pose editor shape and then afterward continue painting weights? What version are you on? Thanks for giving it a shot.

Re: Pose Editor Bug - freezes painting skinning weights

mspeer — Thu, 09 May 2019 14:22:05 GMT

Hi!

Maya 2018.5, creating pose, than painting skin weights...no problem.

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Thu, 09 May 2019 17:34:04 GMT

dang, thanks. Is there any chance you could screen record what you're doing, even on a cylinder, so I can see if I'm messing up a step?

Re: Pose Editor Bug - freezes painting skinning weights

mspeer — Thu, 09 May 2019 18:05:08 GMT

Hi!

Sorry, no.

But if you want you can upload a simple scene-file (cylinder scene) where you are not able to paint skin weights on.

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Thu, 09 May 2019 18:08:09 GMT

will do later tonight, thanks!

Re: Pose Editor Bug - freezes painting skinning weights

zewt — Sat, 11 May 2019 06:10:16 GMT

What's actually happening? You said you can't paint skin weights, but describe what happens when you try. Does Maya crash or freeze, or does something else happen?

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Sat, 11 May 2019 06:12:31 GMT

Sorry, yes, I get the red x with the paint weights brush when it hovers
over the model

Re: Pose Editor Bug - freezes painting skinning weights

zewt — Sun, 12 May 2019 03:24:48 GMT

Hmm, it's been a long time since I've seen that, don't recall what causes it. Remember to upload a small scene with the issue when you have a chance, it'll help figure out whether it's something in the scene or something specific to your system.

Re: Pose Editor Bug - freezes painting skinning weights

lucasridley — Thu, 16 May 2019 02:55:27 GMT

Here's a scene file of the process:

1) bind mesh to joints

2) can paint weights

3) make a pose editor fix

4) can't paint weights any more (red x on the paint weights brush)

edit, it won't let me attach the file, when I select 'post' it just refreshes the page without publishing my comment so I'm trying with a dropbox link:
https://www.dropbox.com/s/3ofh2xivamh1fgn/brokenPaintWeights.ma?dl=0

Re: Pose Editor Bug - freezes painting skinning weights

zewt — Thu, 16 May 2019 04:34:38 GMT

Hmm. In the "Add Pose" dialog when you first create the blend shape deformer, make sure "Deformation order" is set to "Automatic" (pre-deformation and post-deformation are also common, but use automatic if you don't know the difference). From the structure of the deformer chain it looks like you might have it set to "after" or "split", which is usually not what you want. If you're creating the blend shape node yourself, check the Advanced tab of blend shape options box (which has the same option).