Create UV Map

1) With  the  mesh  selected,  under  the  “Get”  section  of  the Model/Animate/Render/Simulate Toolbar  on  the  leftmost  part  of  the program window, go Property > Texture Projection, and then pick an appropriate Projection Type.
Note:  The  XZ  Projection--aka  top-down  projection--is  usually the best in most cases, but technically since it will be frozen  anyway,  it  doesn’t  really  matter  which  one  you pick.

 

2) Press Alt+7 to access the Texture Editor.

3) Edit the UVs as you see fit.

4) Freeze your model periodically to reduce the lag to your system.