The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2001
Filed:
Jun. 12, 1997
Eugene Lapidous, Santa Clara, CA (US);
Silicon Engineering, Inc., Scotts Valley, CA (US);
Abstract
A method and apparatus for creating a display list permitting multiple states of the same type for a single primitive. By introducing a plurality of state variables of the same type in a predetermined order in a display list before a primitive description, different state variables of the same type are applied to different vertex descriptors of the primitive. In one embodiment, the state variables introduced are starting addresses of the groups of vertices addressable by vertex indices of the primitive. In a case where the primitive is a triangle, up to three different starting addresses might be introduced into the display list (one corresponding to each vertex of the triangle). By introducing multiple starting addresses, the vertex indices of the triangle description can be significantly shortened, the concern about variable length inputs can be eliminated, and each index is independent of its predecessor in the master display list. Moreover, these advantages can be achieved without significantly increasing the hardware complexity.