This is an ontachoron(4d cube) with 3d texture.
Texture is a 3d version of checkered pattern texture.
Each axis of X,Y,Z,H coresponds to Red,Green,Blue,Black.
About Rotate Direction:
"Rot XY" means rotation on X-Y plane.
In 3D space, it is Z-axis rotation.
"H" means the 4th direction of 4D space.
It is not "W axis", because I want to avoid confusion to scaler element of quartanion.