Alembic

Alembic animation

Alembic export and import can take a lot of time.

1. Select the asset you want to export (Armature with child or Mesh).
2. Set the Export type property to "Export recursive".
3. Check the box Export as "Alembic animation".
4. Don't forget to check the box Alembic animation(s) in Asset types to export. Make sure that the animation was played at least once for baked cache. You can also use the command "bpy.ops.ptcache.bake_all()" to bake the physics.

Import Alembic assets in Unreal engine using Python

• After export Alembic copy the Import Script.
  
• Paste and run it in Unreal Engine.
  

To avoid visibility issue you can create an Physics Asset.

• Right clic on the Skeletal Mesh -> Create -> Physics Asset -> Create and Assign
  

Import Alembic assets in Unreal engine without Python

• For Alembic animations assets tick Merge Meshes.
• Set ImportType to Skeletal.
• Set FlipU to False and FlipV to True.
• Set Scale to 100,-100,100 (xyz).
• Set Rotation to 90,0,0 (xyz).
  Note: Alembic export and import can take a lot of time.

Alembic example:

To avoid visibility issue you can create an Physics Asset.

• Right clic on the Skeletal Mesh -> Create -> Physics Asset -> Create and Assign
  

Note

You can try with the Exemple File: AssetsExample_Alembic.blend -> https://github.com/xavier150/Blender-For-UnrealEngine-Addons/wiki/Examples-files

Nice to see about Alembic animation:

• Introduction to Alembic | Live Training | Unreal Engine - https://youtu.be/rDHxxk0y2D4
• Light and Shadow - https://polycount.com/discussion/185297/light-and-shadow-for-an-alembic-object-need-help