Problems with animation after exporting

[jovlem]

Hello,

I want to export my model to use it in a game engine ( Godot ).
I’m using the gLTF 2.0 exporter.

Most of the animations looks good expect for the feet.
And I just can’t figure out where it goes wrong.

These are the steps I did:

• create the animation with IK bones
• use “Apply Visual Transform to Pose” to convert from IK to FK ( this works great, after I turn off all the bone constraints the animation looks good )
• export with gTLF 2.0

result in Blender:

result in Godot:

So as you can see, both feet posistions are pretty wrong.
All the other bones seem to be correct.
What might cause this problem?

[clockmender]

Can’t tell without seeing the file, or a file with the armature in it at least! I notice all the bones have some kind of constraint (they are green; something, or yellow; IK), what are these and why are they there?

[jovlem]

It uses this setup:

On the upper leg is just a limit rotation.

• the left bone controls the toes
• the center bone controls the tilting
• the right bone controls the total foot

[clockmender]

@jovlem

On the upper leg is just a limit rotation.

The upper leg is part of the IK chain, so this constraint has no effect, IK chain bones should be limited in their IK properties panel:

I still need to look at the Armature to debug this…