-
公开(公告)号：US20210012552A1
公开(公告)日：2021-01-14
申请号：US17032818
申请日：2020-09-25
Applicant: NVIDIA Corporation
Inventor： Samuli LAINE , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, JR. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
公开(公告)号：US12067669B2
公开(公告)日：2024-08-20
申请号：US18198949
申请日：2023-05-18
Applicant: NVIDIA Corporation
Inventor： Samuli Laine , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, Jr. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
CPC classification number: G06T15/06 , G06T15/005
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
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.
-
公开(公告)号：US11328472B2
公开(公告)日：2022-05-10
申请号：US17032818
申请日：2020-09-25
Applicant: NVIDIA Corporation
Inventor： Samuli Laine , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, Jr. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
公开(公告)号：US10825230B2
公开(公告)日：2020-11-03
申请号：US16101148
申请日：2018-08-10
Applicant: NVIDIA Corporation
Inventor： Samuli Laine , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, Jr. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
Patent Agency Ranking
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.
-
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.
-
公开(公告)号：US11704863B2
公开(公告)日：2023-07-18
申请号：US17716599
申请日：2022-04-08
Applicant: NVIDIA Corporation
Inventor： Samuli Laine , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, Jr. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
CPC classification number: G06T15/06 , G06T15/005
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
公开(公告)号：US20230298258A1
公开(公告)日：2023-09-21
申请号：US18198949
申请日：2023-05-18
Applicant: NVIDIA Corporation
Inventor： Samuli LAINE , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, JR. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
CPC classification number: G06T15/06 , G06T15/005
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
公开(公告)号：US20220230380A1
公开(公告)日：2022-07-21
申请号：US17716599
申请日：2022-04-08
Applicant: NVIDIA Corporation
Inventor： Samuli Laine , Tero Karras , Timo Aila , Robert Ohannessian , William Parsons Newhall, JR. , Greg Muthler , Ian Kwong , Peter Nelson , John Burgess
Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.014 seconds)
