Animation

Mon, 20 Mar 2023 08:37:31 GMT — Properties

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Godot Animation Retargetting

• Mixamo
  • Download X-Bot (female) or Y-Bot (male) in T-pose (without any animations)
  • Tweak animations accordingly
    • Character arm-space
    • Overdrive
    • Trim
  • Download animations without skin and, when available, "in-place" (to avoid root-motion problems, later on)
    • Idle
    • Walking
    • Running
    • Jumping
• Blender
  • Delete everything in the scene
  • Import the X-Bot in fbx format
  • Make a new "Animations" collection
  • Import animation files (in fbx format) into the "Animations" collection
  • Switch to Animation tab and select the Non-linear animation panel
  • Rename existing animation strip to "t-pose" and "push it down"
  • Press the "n" key to open the strip panel
  • Select the new strip (which resulted from pushing the existing strip down in the previous steps)
  • Select the first action (in the strip) panel. Run the animation to see which one it is (either idle, walking, running or jumping)
  • Rename the strip accordingly; for example, "idle-loop" (adding the "-loop" part will automatically make the animation loop inside of Godot)
  • Push the strip down (to create a new strip) and repeat the above three steps until all animations have been added to the armature
  • Right-click the "Animations" collection and select "Delete Hierarchy"
  • Right-click on the "t-pose" strip and select "Track Ordering - To Top"
  • Export scene in glTF (binary) format
    • Remove the materials by selecting "Data - Material - Materials: Placeholder"
    • Name the file "x-bot-locomotions.glb"
• Godot
  • Import (i.e., drag-and-drop) the "x-bot-locomotions.glb" file (the result of the last step in the Blender-part of the process)
  • Import the "Mixamo BoneMap.tres" bone map resource (obtained from the Godot4-MixamoLibraries repo in GitHub)
  • Double-click the "x-bot-locomotions.glb" file to open the advanced import settings dialog
  • Click on the Skeleton3D node and choose "Quick Load" in the Retarget - Bone Map property editor and select the "Mixamo BoneMap.tres" resource file followed by clicking on the "Reimport" button at the bottom of the dialog
  • Drag-and-drop the "x-bot-locomotions.glb" file into the 3D scene and reset its transform
  • Right-click the x-bot-locomotions node in the scene/nodes explorer and select the "Make Local" menu item
  • Save the scene
  • Selecting the AnimationPlayer node will allow you to select and preview the different animation actions (that is, idle, walk, run, jump and t-pose)
  • Click on the "Manage Animations" buttons and click on the floppy disk ("Save") icon to save the [Global] animation library as a resource
  • From this point onwards, you have a resource library that can be used with other (Mixamo skeleton-based) characters

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