Reihenfolge in Tessellierungsoperationen

Details

Veröffentlichungs-Nr.

EP3550523

Aktenzeichen

EP19167188

Anmeldetag

3. April 2019

Veröffentlichung

24. Januar 2024

Erteilung

24. Januar 2024

Rechtsraum

EP

IPC

G06T17/20

Abstract

Described herein is a method of controlling the order in which primitives generated during tessellation are output by the tessellation unit. The method involves sub-dividing a patch, selecting one of the two sub-patches which are formed by the sub-division and tessellating that sub-patch until no further sub-division is possible before tessellating the other (non-selected) sub-patch. The method is recursively applied at each level of sub-division. Patches are output as primitives at the point in the method where they do not require any further sub-division. The selection of a sub-patch is made based on the values of one or more flags and any suitable tessellation method may be used to determine whether to sub-divide a patch. Methods of controlling the order in which vertices are output by the tessellation unit are also described and these may be used in combination with, or independently of, the method of controlling the primitive order.To be accompanied, when published, by Figure 2A of the accompanying drawings.

Anmelder

Firma

Imagination Technologies Limited

Land

🇬🇧 Großbritannien

Fachgebiete