公开(公告)号：US20250118005A1

公开(公告)日：2025-04-10

申请号：US18911682

申请日：2024-10-10

Applicant: NVIDIA Corporation

Inventor： Greg MUTHLER ,  Tero Karras ,  Samuli Laine ,  William Parsons Newhall, JR. ,  Ronald Charles Babich, JR. ,  John Burgess ,  Ignacio Llamas

IPC: G06T15/06

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 opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to omit reporting of one or more primitives the ray is determined to intersect. The omitted primitives include primitives which are provably capable of being omitted without a functional impact on visualizing the virtual scene.

公开(公告)号：US12198255B2

公开(公告)日：2025-01-14

申请号：US18471651

申请日：2023-09-21

Applicant: NVIDIA CORPORATION

Inventor： Samuli Laine ,  Timo Aila ,  Tero Karras ,  Gregory Muthler ,  William P. Newhall, Jr. ,  Ronald C Babich, Jr. ,  Craig Kolb ,  Ignacio Llamas ,  John Burgess

IPC: G06T15/06 ,  G06T15/00 ,  G06T17/00

Abstract: Methods and systems are described in some examples for changing the traversal of an acceleration data structure in a highly dynamic query-specific manner, with each query specifying test parameters, a test opcode and a mapping of test results to actions. In an example ray tracing implementation, traversal of a bounding volume hierarchy by a ray is performed with the default behavior of the traversal being changed in accordance with results of a test performed using the test opcode and test parameters specified in the ray data structure and another test parameter specified in a node of the bounding volume hierarchy. In an example implementation a traversal coprocessor is configured to perform the traversal of the bounding volume hierarchy.

公开(公告)号：US12124378B1

公开(公告)日：2024-10-22

申请号：US18137421

申请日：2023-04-20

Applicant: NVIDIA Corporation

Inventor： Gregory A. Muthler ,  Timo Aila ,  Tero Karras ,  Samuli Laine ,  William Parsons Newhall, Jr. ,  Ronald Charles Babich, Jr. ,  John Burgess ,  Ignacio Llamas

IPC: G06F12/00 ,  G06F12/0875 ,  G06F16/901 ,  G06T15/06

CPC classification number: G06F12/0875 ,  G06F16/9027 ,  G06T15/06 ,  G06T2207/20021

Abstract: In a ray tracer, a cache for streaming workloads groups ray requests for coherent successive bounding volume hierarchy traversal operations by sending common data down an attached data path to all ray requests in the group at the same time or about the same time. Grouping the requests provides good performance with a smaller number of cache lines.

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

IPC: G06T15/06 ,  G06T15/00

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：US11804000B2

公开(公告)日：2023-10-31

申请号：US17513023

申请日：2021-10-28

Applicant: NVIDIA CORPORATION

Inventor： Samuli Laine ,  Timo Aila ,  Tero Karras ,  Gregory Muthler ,  William P. Newhall, Jr. ,  Ronald C. Babich, Jr. ,  Craig Kolb ,  Ignacio Llamas ,  John Burgess

IPC: G06T15/06 ,  G06T15/00 ,  G06T17/00

CPC classification number: G06T15/06 ,  G06T15/005 ,  G06T17/005

Abstract: Methods and systems are described in some examples for changing the traversal of an acceleration data structure in a highly dynamic query-specific manner, with each query specifying test parameters, a test opcode and a mapping of test results to actions. In an example ray tracing implementation, traversal of a bounding volume hierarchy by a ray is performed with the default behavior of the traversal being changed in accordance with results of a test performed using the test opcode and test parameters specified in the ray data structure and another test parameter specified in a node of the bounding volume hierarchy. In an example implementation a traversal coprocessor is configured to perform the traversal of the bounding volume hierarchy.

公开(公告)号：US11790595B2

公开(公告)日：2023-10-17

申请号：US17490024

申请日：2021-09-30

Applicant: NVIDIA Corporation

Inventor： Samuli Laine ,  Tero Karras ,  Greg Muthler ,  William Parsons Newhall, Jr. ,  Ronald Charles Babich, Jr. ,  Ignacio Llamas ,  John Burgess

IPC: G06T15/06 ,  G06T1/20 ,  G06T15/00

CPC classification number: G06T15/06 ,  G06T1/20 ,  G06T15/005 ,  G06T2210/21

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 opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to provide a deterministic result of intersected triangles regardless of the order that the memory subsystem returns triangle range blocks for processing, while opportunistically eliminating alpha intersections that lie further along the length of the ray than closer opaque intersections.

公开(公告)号：US20230147641A1

公开(公告)日：2023-05-11

申请号：US17522776

申请日：2021-11-09

Applicant: Nvidia Corporation

Inventor： Ting-Chun Wang ,  Tim Brooks ,  Ming-Yu Liu ,  Tero Karras ,  Jaakko Lehtinen

IPC: G06T13/00 ,  G06N3/04

CPC classification number: G06T13/00 ,  G06N3/0454

Abstract: Apparatuses, systems, and techniques are presented to reconstruct one or more images. In at least one embodiment, one or more neural networks are used to generate one or more images of one or more objects based, at least in part, on input indicating motion of the one or more objects.

公开(公告)号：US10825232B2

公开(公告)日：2020-11-03

申请号：US16749089

申请日：2020-01-22

Applicant: NVIDIA Corporation

Inventor： Greg Muthler ,  Tero Karras ,  Samuli Laine ,  William Parsons Newhall, Jr. ,  Ronald Charles Babich, Jr. ,  John Burgess ,  Ignacio Llamas

IPC: G06T15/06

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 opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to omit reporting of one or more primitives the ray is determined to intersect. The omitted primitives include primitives which are provably capable of being omitted without a functional impact on visualizing the virtual scene.

公开(公告)号：US10580196B1

公开(公告)日：2020-03-03

申请号：US16101066

申请日：2018-08-10

Applicant: NVIDIA Corporation

Inventor： Greg Muthler ,  Tero Karras ,  Samuli Laine ,  William Parsons Newhall, Jr. ,  Ronald Charles Babich, Jr. ,  John Burgess ,  Ignacio Llamas

IPC: G06T15/06

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 opaque and alpha triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to determine primitives intersected by the ray, and return intersection information to a streaming multiprocessor for further processing. The hardware-based traversal coprocessor is configured to omit reporting of one or more primitives the ray is determined to intersect. The omitted primitives include primitives which are provably capable of being omitted without a functional impact on visualizing the virtual scene.