Lofting Originated in boat design 2 D cross-sections placed in 3 D space are connected by side faces to form a 3 D shape.
Extrusion Also called projection A copy of a 2 D profile is made and translated and then the original and copied profiles are connected by side faces to form a 3 D shape.
Sweeping 2 D cross-section is swept along a 3 D path to create a 3 D shape.
Surface of revolution 2 D profile is rotated around an axis to create a 3 D shape.
Boolean operations Boolean operation -- union (or, “u”), intersection (and, “n”), or difference (not, “-”) -is applied to a pair of objects. Au. B An. B A-B B-A
Boolean operations Cookie SOP in Houdini Can produce a complicated object with a repeated used of operations. Prone to computational errors.
Assignment 12 Create 3 D models of four or more different kinds of sea shells. At least two univalves and at least two bivalves. Color each model with at least two colors using Group SOPs. Make them as realistic as you can.