how do i erase part of my model without leaving a hole in my mesh. im assuming i use the mask tool to select the part of the model i erase but whats next.
Group masked, select and hide group and delete it. Fill holes.
ok how do i fill the holes. thats what i was really asking. is there a way to have the program close the mesh itself or do i have to do it manually and how do i do either one?
Geometry pallette, find button marked close holes and press it. See modify topology>> http://docs.pixologic.com/reference-guide/tool/polymesh/geometry/