Update(April 2026): Added files that bake actions and split them into separate animations(KoiBlenderScaleAnimBakeSplitAnim.zip, Blender4.5.1). This makes NLA editing easier. https://eizouasobi.blogspot.com/2024/04/efficient-use-of-blender-assets.html

3D model and animations of Koi.

https://www.youtube.com/watch?v=8AQ70PMdkWY 

https://www.youtube.com/watch?v=GWEwIXwqHqU 

There are files that contains two types of scale.

KoiBlenderSize.blend uses blender unit system, KoiUE4Size.blend uses scale for UE4.

Each file contains two types of models:

KoiMiddlePoly

5028 Verts

4972 Faces

KoiLowPoly

1194 Verts

1308 Faces

Animation names are listed in the documentation. 

Note: To import UE4, I need 3dsMax.

How to import to the game engine