公开(公告)号：US12148088B2

公开(公告)日：2024-11-19

申请号：US18129334

申请日：2023-03-31

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：US20220284621A1

公开(公告)日：2022-09-08

申请号：US17734441

申请日：2022-05-02

Applicant: NVIDIA Corporation

Inventor： Joohwan Kim ,  Michael Stengel ,  Zander Majercik ,  Shalini De Mello ,  Samuli Laine ,  Morgan McGuire ,  David Luebke

IPC: G06T7/70 ,  G06V40/19 ,  G06F3/01 ,  G06F7/57 ,  G06N3/04

Abstract: One embodiment of a method includes calculating one or more activation values of one or more neural networks trained to infer eye gaze information based, at least in part, on eye position of one or more images of one or more faces indicated by an infrared light reflection from the one or more images.

公开(公告)号：US11200725B2

公开(公告)日：2021-12-14

申请号：US17030008

申请日：2020-09-23

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：US20210005010A1

公开(公告)日：2021-01-07

申请号：US17030008

申请日：2020-09-23

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：US20200051312A1

公开(公告)日：2020-02-13

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 ,  G06T17/00 ,  G06T15/00

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：US20250104334A1

公开(公告)日：2025-03-27

申请号：US18971974

申请日：2024-12-06

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

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：US11645810B2

公开(公告)日：2023-05-09

申请号：US17520100

申请日：2021-11-05

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

CPC classification number: 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：US20220198741A1

公开(公告)日：2022-06-23

申请号：US17688674

申请日：2022-03-07

Applicant: NVIDIA Corporation

Inventor： Timo Tapani Viitanen ,  Tero Tapani Karras ,  Samuli Laine

IPC: G06T15/06 ,  G06T1/20 ,  G06T1/60 ,  G06T9/00 ,  H03M7/30 ,  G06F9/50 ,  G06F3/06 ,  G06F9/52

Abstract: In examples, a list of elements may be divided into spans and each span may be allocated a respective memory range for output based on a worst-case compression ratio of a compression algorithm that will be used to compress the span. Worker threads may output compressed versions of the spans to the memory ranges. To ensure placement constraints of a data structure will be satisfied, boundaries of the spans may be adjusted prior to compression. The size allocated to a span (e.g., each span) may be increased (or decreasing) to avoid padding blocks while allowing for the span's compressed data to use a block allocated to an adjacent span. Further aspects of the disclosure provide for compaction of the portions of compressed data in memory in order to free up space which may have been allocated to account for the memory gaps which may result from variable compression ratios.

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

IPC: G06T15/06 ,  G06T15/00

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：US11321865B1

公开(公告)日：2022-05-03

申请号：US16355481

申请日：2019-03-15

Applicant: NVIDIA CORPORATION

Inventor： Joohwan Kim ,  Michael Stengel ,  Zander Majercik ,  Shalini De Mello ,  Samuli Laine ,  Morgan McGuire ,  David Luebke

IPC: G06T7/70 ,  G06F3/01 ,  G06N3/04 ,  G06F7/57 ,  G06K9/00

Abstract: One embodiment of a method includes calculating one or more activation values of one or more neural networks trained to infer eye gaze information based, at least in part, on eye position of one or more images of one or more faces indicated by an infrared light reflection from the one or more images.