Parametric Representations Many of the representations of solids rest on a representation of their boundaries. That was true even in the case of the csg-rep. Although the primitives were solids, in practice one only had equations or parameterizations for their surfaces, and the interior of the solid was not referenced explicitly. As far as parameterizations […]
Modeling Natural Phenomena Except for the pixel- and voxel-based types, the representation schemes we have discussed so far are not very useful for modeling natural phenomena. Objects such as trees, mountains, grass, or various terrain cannot easily be modeled by linear poly-hedra or smooth surface patches. Using very small pieces in the representation would overwhelm […]