An 11M-triangles/sec 3D graphics clipping engine for triangle primitives

—This paper describes a clipping engine, which processes the view clipping, perspective division, and view-port mapping of 3D graphics. Complexity of polygon clipping algorithm causes difficulties to implement hardware. We propose a clipping algorithm that shows 3.07 times higher performance than a conventional algorithm. In addition, we propose a scheme to improve performance up to 57% by eliminating redundant calculations of overlapped vertices without additional hardware. We implement the clipping engine in 0.13um CMOS technology. It processes 11Mtriangles/sec at 166MHz and has 156kgates counts.

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Jaewan Bae, Donghyun Kim, Lee-Sup Kim
• Keywords: Conventional Algorithm, ISCAS 2005, Overlapped Vertices, Polygon Clipping Algorithm