Im trying to split large meshes like terrain into smaller chunks. To do this i decided to use Max's slice functionality to do this instead of me having to write an external program to do this. Basically the script takes a mesh and slices it into smaller chunks. I make use of the meshop.slice function in MaxScript to do the slicing. There are a few problems after this: The slicing is extremely inefficient. It adds hundrerds of unnecessary vertices/faces for each polygon it slices. No problem, i can just apply the optimise modifier before exporting. When i slice the mesh, i can only slice it into elements of the mesh. I can't seem to find any function calls in MaxScript to select elements from a editable mesh. Would be happy if someone experienced in MaxScript can help me.