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公开(公告)号:US12106423B2
公开(公告)日:2024-10-01
申请号:US17946201
申请日:2022-09-16
Applicant: NVIDIA Corporation
Inventor: Gregory Muthler , John Burgess , Magnus Andersson , Ian Kwong , Edward Biddulph
CPC classification number: G06T15/06 , G06T15/005 , G06T15/30 , G06T2210/12 , G06T2210/21
Abstract: 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.
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公开(公告)号:US12198252B2
公开(公告)日:2025-01-14
申请号:US17946193
申请日:2022-09-16
Applicant: NVIDIA Corporation
Inventor: Gregory Muthler , John Burgess , Magnus Andersson , Ian Kwong , Edward Biddulph
Abstract: 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.
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公开(公告)号:US12198251B2
公开(公告)日:2025-01-14
申请号:US17946093
申请日:2022-09-16
Applicant: NVIDIA Corporation
Inventor: Gregory Muthler , John Burgess , Magnus Andersson , Ian Kwong , Edward Biddulph
Abstract: 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.
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