18964371. TESSELLATION METHOD USING VERTEX TESSELLATION FACTORS (Imagination Technologies Limited)
Contents
TESSELLATION METHOD USING VERTEX TESSELLATION FACTORS
Organization Name
Imagination Technologies Limited
Inventor(s)
Vasiliki Simaiaki of London GB
TESSELLATION METHOD USING VERTEX TESSELLATION FACTORS
This abstract first appeared for US patent application 18964371 titled 'TESSELLATION METHOD USING VERTEX TESSELLATION FACTORS
Original Abstract Submitted
A tessellation method uses vertex tessellation factors. For a quad patch, the method involves comparing the vertex tessellation factors for each vertex of the quad patch to a threshold value and if none exceed the threshold, the quad is sub-divided into two or four triangles. If at least one of the four vertex tessellation factors exceeds the threshold, a recursive or iterative method is used which considers each vertex of the quad patch and determines how to further tessellate the patch dependent upon the value of the vertex tessellation factor of the selected vertex or dependent upon values of the vertex tessellation factors of the selected vertex and a neighbor vertex. A similar method is described for a triangle patch.
