[Bf-committers] volumetrics (Farsthary)

[echelon at infomail.upr.edu.cu]

Hi all!

 I just finished tricubic interpolation ofr regular grids. For rendering
detailed preserving volumetrics the results are awesome but are very slow
compared with trilinear interpolation and in some cases the differences
are minimal. So I think I should keep it as a cuality option.

 (Besides is good to have tricubic interpolation avaible in blender :)

                                              Regards Farsthary