Nvidia corporation (20240095993). REDUCING FALSE POSITIVE RAY TRAVERSAL IN A BOUNDING VOLUME HIERARCHY simplified abstract

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REDUCING FALSE POSITIVE RAY TRAVERSAL IN A BOUNDING VOLUME HIERARCHY

Organization Name

nvidia corporation

Inventor(s)

Gregory Muthler of Chapel Hill NC (US)

John Burgess of Austin TX (US)

Magnus Andersson of Lund (SE)

Ian Kwong of Santa Clara CA (US)

Edward Biddulph of Helsinki (FI)

REDUCING FALSE POSITIVE RAY TRAVERSAL IN A BOUNDING VOLUME HIERARCHY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240095993 titled 'REDUCING FALSE POSITIVE RAY TRAVERSAL IN A BOUNDING VOLUME HIERARCHY

Simplified Explanation

The abstract describes techniques for reducing false positive ray intersections in a ray tracing hardware accelerator for traversing a hierarchical acceleration structure. This may involve selectively performing higher precision intersection tests, culling degenerate bounding volumes, and clipping rays that exceed distance thresholds.

  • Selectively performing a secondary higher precision intersection test for a bounding volume
  • Identifying and culling bounding volumes that degenerate to a point
  • Parametrically clipping rays that exceed certain configured distance thresholds

Potential Applications

This technology can be applied in various fields such as computer graphics, virtual reality, augmented reality, and simulation software where real-time ray tracing is utilized.

Problems Solved

1. False positive ray intersections in ray tracing hardware accelerators 2. Inefficient traversal of hierarchical acceleration structures

Benefits

1. Improved accuracy in ray tracing 2. Faster rendering speeds 3. Enhanced realism in graphics

Potential Commercial Applications

"Enhanced Ray Tracing Techniques for Real-Time Graphics Rendering"

Possible Prior Art

One possible prior art could be the use of bounding volume hierarchies in ray tracing algorithms to accelerate rendering processes.

Unanswered Questions

How does this technology compare to existing methods for reducing false positive ray intersections in ray tracing hardware accelerators?

This article does not provide a direct comparison with existing methods or technologies in the field.

What are the specific distance thresholds used for parametrically clipping rays in this technology?

The article does not specify the exact distance thresholds configured for clipping rays.


Original Abstract Submitted

techniques applicable to a ray tracing hardware accelerator for traversing a hierarchical acceleration structure with reduced false positive ray intersections are disclosed. the reduction of false positives may be based upon one or more of selectively performing a secondary higher precision intersection test for a bounding volume, identifying and culling bounding volumes that degenerate to a point, and parametrically clipping rays that exceed certain configured distance thresholds.