Center for Integrated Systems, Stanford University, Stanford, CA 94305  

The axes directions , , and are interpolated in spherical coordinates to ensure smooth rotations.

is warped into in a similar way, the only difference being that is used in this last step in place of .

Distance measurements postulate cubical volumes of unit side length. Also, we always set to .

In other words, ``time'' is a real number linearly increasing from 0 to 1 as the morph unfolds.

We always use an error tolerance of a single voxel width and an initial subdivision of cells.

Last update: 11 May 1995 by Apostolos "Toli" Lerios