Unfold3D process error

[staceypeck]

I'm trying to unfold my UV map and I keep getting an error that says "// Error: Unfold3D process error." How can I resolve this?

[Christoph_Schaedl]

Its also fixed in Maya2020.2

[Anonymous]

It's nice to hear.

[Anonymous]

thanks bro!

[theantgroup3d]

Ryzen 3990x the same issue. Looks like it needs adaptation

[Anonymous]

thank you so much this works for me!!!!!!

[Anonymous]

My plug ins are loaded in Maya 2019.  I am still having the error even after unchecking and checking again.  My model has had all history deleted by type and on one layer.  I created my own seams for unwrap but when I goto unfold it throws me the error.  This has never happened before.  I don't know about legacy but it works however I can not unfold the pieces and flatten them in any way that looks correct.

[Anonymous]

This is NOT fixed in 2020.2

I had to download that fix on page 2 of this forum overwriting the unwrap files.

Autodesk, this is a lame that you would let such an important part of your program (unfolding uvs) be totally disabled / broken for RYZEN users.

There are many  many AMD Ryzen users out there.

Fix this problem.  It make your software engineers look embarrassingly incompetent.

[mspeer]

Hi!

@Anonymous 

Have you set set the environment variable MAYA_USE_ALTERNATE_UNFOLD_SHIM = 1 ?

This is required for Maya 2020.2 with a Ryzen 3900x series CPU.

[Anonymous]

yup it also works with me Ryzen 7 3700x

[gimble]

Keeping the plugin unchecked worked for me, with a Ryzen 3900

[Anonymous]

There clearly seems to be a Ryzen compatibility issue here. I'm also using a Ryzen 3950x. Had no problems before using a old Xeon. Doubt this will be fixed anytime soon sadly. 

Unchecking the plugin does nothing.

It seems to only work on very simple geometry. 

[Christoph_Schaedl]

It is fixed in the latest updates. 

[Anonymous]

Can confirm, issue still persists

[Christoph_Schaedl]

Have you set the env variable? 

[pedro.masa]

there is a solution... you need to edit maya.env and add this line.
"MAYA_USE_ALTERNATE_UNFOLD_SHIM = 1"

[interactm]

This seems to have worked!

Thanks for the reply.

[jamesEWHMV]

Hi, I'm having the process error issue, using an AMD 5600X. Reloading the plugin doesn't do anything. OBJ exporting and re-importing the geometry also doesn't do anything. Using Maya 2019.3.1, all up to date.

[brentmc]

Hi,

Did you try editing maya.env and adding "MAYA_USE_ALTERNATE_UNFOLD_SHIM = 1" as described in the other replies and in this knowledge base article?

https://knowledge.autodesk.com/support/maya-lt/troubleshooting/caas/sfdcarticles/sfdcarticles/Unfold...

--
Brent

[jamesEWHMV]

Followed the steps and it worked immediately. Thanks!

[Anonymous]

Same for me