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.

Date of Patent:
Nov. 28, 2023

Filed:

Jun. 20, 2022
Applicant:

Imagination Technologies Limited, Kings Langley, GB;

Inventors:

Peter Malcolm Lacey, Buckinghamshire, GB;

Simon Fenney, St. Albans, GB;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06T 17/20 (2006.01); G06T 15/00 (2011.01);
U.S. Cl.
CPC ...
G06T 17/20 (2013.01); G06T 15/005 (2013.01); G06T 17/205 (2013.01);
Abstract

A tessellation method uses tessellation factors defined for each vertex of a patch which may be a quad, a triangle or an isoline. The method is implemented in a computer graphics system and involves comparing the vertex tessellation factors to a threshold. If the vertex tessellation factors for either a left vertex or a right vertex, which define an edge of an initial patch, exceed the threshold, the edge is sub-divided by the addition of a new vertex which divides the edge into two parts and two new patches are formed. New vertex tessellation factors are calculated for each vertex in each of the newly formed patches, both of which include the newly added vertex. The method is then repeated for each of the newly formed patches until none of the vertex tessellation factors exceed the threshold.


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