Am 17.01.2014 14:34, schrieb mikaelk:
> I'm not sure why the step structure. I think it maybe related to my quantization> of data, which doesn't have enough bits.>> http://imageshack.com/a/img35/7173/6j0u.png
Maybe try "interpolate 2" on the df3 you're using for the isosurface.