Additive Animation bug

I've got a weird issue with additive animations in Mecanim. When not using a mask, applying an additive animation offsets the character. If I apply a mask that excludes the root bone, everything looks normal.
This is in effect in 2017.1b10 and 2017.1f1 - not sure if it existed previously.

I've created a simple repro project I can provide, though you can duplicate this issue very simply as follows:

• Start a new project
• Import Characters
• Add a plane at 0,0,0
• Add the prefab Standard Assets/Characters/ThirdPersonCharacter/Prefabs/ThirdPersonController at 0,0,0
• Create a second layer in the character's animator
• Set the new layer to Additive with a weight of 1
• Add the HumanoidIdle animation as the default animation on the new layer
• Press Play

You'll get something that looks like this (Note that the character is rotated left and partway through the floor):


In Unity 5.6, you get this instead (the expected result):


Please let me know if you need any additional details, or have any suggestions.

Thanks!

 

If getting a fix for this issue is important to you, I recommend to submit a bug-report, following the advice in this document. Using the bug-reporter seems to be an important step, because that makes sure the report is in their bug-tracking pipeline and has to be processed at some point.

After you submitted the bug-report, you receive a confirmation email with a Case number. Unity often asks us to post the Case number in the forum thread, which allows them to find that bug-report if they look at your post.

 

Thanks for the heads up.

I'm definitely still seeing this in 2017.1f1. I've filed this with a repro project. It's bug 925379.

 

I got a reply saying it was a dupe of https://issuetracker.unity3d.com/is...cause-avatar-hips-to-be-placed-at-around-00-0 which shows as being resolved prior to Jun 22. Not sure what this means for the future of this but, as 2017.1f1 came out after Jun 22. Anyone know?

 

The fix for that issue tracker listed, is definitively in the upcoming f3. (definitely not before).

 

Oh cool. Thanks for the clarification.