Patents Represented by Attorney, Agent or Law Firm Louis J. Peercello
  • Patent number: 6414680
    Abstract: A Prioritized-Layered Projection (PLP) method and system for optimizing the rendering high-depth complexity scenes. Objects in each frame are prioritized with an estimation of the visible set within the rendered frame. A priority order for only the primitives in visible sets within the frame are computed “on demand” to maximize the likelihood of rendering visible primitives before rendering occluded ones. For a fixed budget, such as, time or number of triangles, rendering is constrained to a geometry budgeted priority. The method includes two main steps: an occupancy-based tessellation of space; and a solidity-based traversal algorithm. By first computing an occupancy-based tessellation of space, more cells result where there are more geometric primitives. In this spatial tessellation, each cell is assigned a “solidity” value directly proportional to its likelihood of occluding other cells.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: July 2, 2002
    Assignee: International Business Machines Corp.
    Inventors: James T. Klosowski, Claudio T. Silva