Interpolation Between Slices should use the resolution of the higher resolution slice

[cmhulbert]

In shape interpolation mode, each interpolated segment between two slices is entirely independent, and the resolution of the interpolated section is based arbitrarily on the first slice of the segment. This leads to issues where the first and second slice of a segment have different resolutions, and the transition between them is quite jarring.

The solution would be to generate the interpolated segment based on the higher resolution slice.