Computer Assisted Assembly and Rendering of Solids.
Abstract
The objective of the paper is to describe a technique that produces shaded renderings of solids; and to describe an assembly procedure which may be used to assemble representations of 3-D objects in such a way that they can be photographically rendered. The algorithm that is used to produce photographic renderings may be subdivided into two parts -- (1) the visible surface procedure that determines which surfaces are visible and which are invisible and retains the description of only the visible surfaces, and (2) the shader which varies the tonal gradation on all visible surfaces. The assembly procedure is a tool that allows a user to form, manipulate and photographically render 3-D objects. A set of primitive structures described by planar triangles are used as the 3-D object building-set. Both the rendering and assembly procedures are presently operational software programs written in a combination of Fortran V and UNIVAC 1108 Assembly Language. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1969
- Accession Number
- AD0753673
Entities
People
- Gordon Wilson Romney
Organizations
- University of Utah