https://ctech.com/studio_help/module-libraries/subsetting/plume/index.htmlCreate a true 3D volumetric subset of a 3D input. The resulting volume can be used as input for further subsetting or volumetric computations since it is volumetric. This module should not normally be used when you desire a visualization of a plume but rather when you wish to do subsequent operations such as analysis, slices, etc.Hugoen-us