RAY TRACING A THREE DIMENSIONAL SCENE USING A GRID
摘要
Ray tracing a three-dimensional scene using a grid. One example embodiment is a method for ray tracing a three-dimensional scene using a grid. In this example method, the three-dimensional scene is made up of objects that are spatially partitioned into a plurality of cells that make up the grid. The method includes a first act of computing a bounding frustum of a packet of rays, and a second act of traversing the grid slice by slice along a major traversal axis. Each slice traversal includes a first act of determining one or more cells in the slice that are overlapped by the frustum and a second act of testing the rays in the packet for intersection with any objects at least partially bounded by the one or more cells overlapped by the frustum.
申请公布号
WO2008067483(A1)
申请公布日期
2008.06.05
申请号
WO2007US85965
申请日期
2007.11.29
申请人
UNIVERSITY OF UTAH RESEARCH FOUNDATION;WALD, INGO;IZE, SANTIAGO;PARKER, STEVEN, G.;KNOLL, ARRON