Patents by Inventor Per Ganestam

Per Ganestam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bounding volume hierarchy generation using a heterogeneous architecture
    Patent number: 9990758
    Abstract: A system rapidly builds bounding volume hierarchies for ray tracing using both the CPU cores and an integrated graphics processor. The hierarchy is built directly into shared memory (between the CPU and GPU). The method starts by sorting the triangles along a space-filling curve, and then quickly sets up a number of mini-trees with a small number of triangles in them, which includes computing the bounding boxes of the mini-trees. This makes it possible to build the mini-trees using a surface-area heuristic in parallel on the graphics processor, while at the same time, the trees above the mini-trees are built in a top-down fashion using the CPU cores.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 5, 2018
    Assignee: Intel Corporation
    Inventors: Per Ganestam, Tomas Akenine-Moller, Carl J. Munkberg
  • Bounding Volume Hierarchy Generation Using a Heterogeneous Architecture
    Publication number: 20150279092
    Abstract: A system rapidly builds bounding volume hierarchies for ray tracing using both the CPU cores and an integrated graphics processor. The hierarchy is built directly into shared memory (between the CPU and GPU). The method starts by sorting the triangles along a space-filling curve, and then quickly sets up a number of mini-trees with a small number of triangles in them, which includes computing the bounding boxes of the mini-trees. This makes it possible to build the mini-trees using a surface-area heuristic in parallel on the graphics processor, while at the same time, the trees above the mini-trees are built in a top-down fashion using the CPU cores.
    Type: Application
    Filed: December 18, 2014
    Publication date: October 1, 2015
    Inventors: Per Ganestam, Tomas Akenine-Moller, Carl J. Munkberg