Mixamo2Godot
Script to merge several Mixamo animations into one GLB file.
Motivation
I try using the Blender plugin Godot GameTools but the export had some issues with root motion.
I did the export "by hand" by following the instructions in this video and the export was perfect regarding root-motion.
In the comment of this video, someone provided a script for the whole process, but it did not work (the comment is two years old, probably some issue with the new Blender version). I tried to correct it, but since I had no experience in Python nor in Blender API at the time, I could not figure it out.
This seemed to be a good start for me to learn how to write script for Blender…
The script
It performs all the steps described in this video :
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scales the animations (object and hips location)
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renames the bones
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adds one strip for each animation
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adds root motion (parents the hips, copies xz location keyframes…)
The script requires that :
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All the animations from Mixamo are in one directory
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One of the animation is the T pose, and it must be named
TPose.fbx
You can then launch the script within Blender or from the command
line with Blender --background --python /path/to/the/script — /path/to/directory/of/animations.
The name of the FBX files will be used to name the strips (you can add -loop to the name,
so that Godot will make it a loop). The base name of the directory containing the FBX file will be used for the export file (with .glb added).
For instance, if in the folder basic_movement there are the following files :
-
Breathing Idle-loop.fbx -
Crouched To Standing.fbx -
Crouching Idle-loop.fbx -
Falling Idle.fbx -
dle-loop.fb -
Jumping Down.fbx -
Jumping.fb -
Left Strafe Walking-loop.fbx -
Right Strafe Walking-loop.fbx -
Running Jump.fbx -
Running-loop.fb -
Standard Run-loop.fbx -
Start Walking.fbx -
Stop Walking.fbx -
TPose.fb -
Walking Left Turn.fbx -
Walking-loop.fb
After running the script, you will get an export named basic_movement.glb with the following nla :
