Interpolate a given scalar volume adding points between original grid points. The interpolation is done using a tricubic polynomial.

volume_in | Field | A field with scalar node data. This field should be at least 4x4x4. |

Points added | slider | Points to be added between original grid points. If zero, the input volume is simply copied to output. |

volume_out | Mesh+Node_Data | The interpolated volume. |