-
公开(公告)号：US20230298274A1
公开(公告)日：2023-09-21
申请号：US18170095
申请日：2023-02-16
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
CPC classification number: G06T19/003 , G06T7/586 , G06F30/20
Abstract: Systems and methods implement a technique for altering the shape of the cells by shifting coordinates of points along cell boundaries using a set of periodic functions. To avoid having cell boundaries along the scene surfaces, wavelengths of those periodic functions are selected so they are not a multiple of an original discretization. The coordinates may be shifted along different axes of the cells and may generate different cells having a variety of different outlines to reduce a likelihood of a cell boundary being positioned along a scene boundary.
-
公开(公告)号：US11609899B2
公开(公告)日：2023-03-21
申请号：US16930633
申请日：2020-07-16
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
Abstract: Approaches in accordance with various embodiments can perform spatial hash map updates while ensuring the atomicity of the updates for arbitrary data structures. A hash map can be generated for a dataset where entries in the hash map may correspond to multiple independent values, such as pixels of an image to be rendered. Update requests for independent values may be received on multiple concurrent threads, but change requests for independent values corresponding to a hash map entry can be aggregated from a buffer and processed iteratively in a single thread for a given hash map entry. In the case of multi-resolution spatial hashing where data can be stored at various discretization levels, this operation can be repeated to propagate changes from one level to another.
-
公开(公告)号：US11925860B2
公开(公告)日：2024-03-12
申请号：US17343008
申请日：2021-06-09
Applicant: NVIDIA Corporation
Inventor： Marco Salvi , Jacopo Pantaleoni , Aaron Eliot Lefohn , Christopher Ryan Wyman , Pascal Gautron
IPC: A63F13/00 , A63F13/352 , A63F13/355 , G06T17/10 , G06T17/20
CPC classification number: A63F13/355 , A63F13/352 , G06T17/10 , G06T17/20
Abstract: This application discloses techniques for generating and querying projective hash maps. More specifically, projective hash maps can be used for spatial hashing of data related to N-dimensional points. Each point is projected onto a projection surface to convert the three-dimensional (3D) coordinates for the point to two-dimensional (2D) coordinates associated with the projection surface. Hash values based on the 2D coordinates are then used as an index to store data in the projective hash map. Utilizing the 2D coordinates rather than the 3D coordinates allows for more efficient searches to be performed to locate points in the 3D space. In particular, projective hash maps can be utilized by graphics applications for generating images, and the improved efficiency can, for example, enable a game streaming application on a server to render images transmitted to a user device via a network at faster frame rates.
-
公开(公告)号：US20240338358A1
公开(公告)日：2024-10-10
申请号：US18745388
申请日：2024-06-17
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
CPC classification number: G06F16/2379 , G06F9/46 , G06F16/2255 , G06T15/06
Abstract: Approaches in accordance with various embodiments can perform spatial hash map updates while ensuring the atomicity of the updates for arbitrary data structures. A hash map can be generated for a dataset where entries in the hash map may correspond to multiple independent values, such as pixels of an image to be rendered. Update requests for independent values may be received on multiple concurrent threads, but change requests for independent values corresponding to a hash map entry can be aggregated from a buffer and processed iteratively in a single thread for a given hash map entry. In the case of multi-resolution spatial hashing where data can be stored at various discretization levels, this operation can be repeated to propagate changes from one level to another.
-
公开(公告)号：US12013844B2
公开(公告)日：2024-06-18
申请号：US18186751
申请日：2023-03-20
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
CPC classification number: G06F16/2379 , G06F9/46 , G06F16/2255 , G06T15/06
Abstract: Approaches in accordance with various embodiments can perform spatial hash map updates while ensuring the atomicity of the updates for arbitrary data structures. A hash map can be generated for a dataset where entries in the hash map may correspond to multiple independent values, such as pixels of an image to be rendered. Update requests for independent values may be received on multiple concurrent threads, but change requests for independent values corresponding to a hash map entry can be aggregated from a buffer and processed iteratively in a single thread for a given hash map entry. In the case of multi-resolution spatial hashing where data can be stored at various discretization levels, this operation can be repeated to propagate changes from one level to another.
-
Patent Agency Ranking
公开(公告)号：US20230325988A1
公开(公告)日：2023-10-12
申请号：US18156193
申请日：2023-01-18
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
CPC classification number: G06T5/20 , G06T7/60 , G06V10/60 , G06V10/761 , H04L9/3236
Abstract: Approaches presented herein provide systems and methods for lighting a scene in world-space. The systems and methods may generate lighting effects based on both temporally averaged world-space lighting data and screen-space spatial filtering. The lighting data may be based on material properties for objects within an image, where different material properties may lead to larger weighting factors based on a one or more optical properties of an object surface.
-
公开(公告)号：US20220395748A1
公开(公告)日：2022-12-15
申请号：US17343008
申请日：2021-06-09
Applicant: NVIDIA Corporation
Inventor： Marco Salvi , Jacopo Pantaleoni , Aaron Eliot Lefohn , Christopher Ryan Wyman , Pascal Gautron
IPC: A63F13/355 , A63F13/352 , G06T17/10 , G06T17/20
Abstract: This application discloses techniques for generating and querying projective hash maps. More specifically, projective hash maps can be used for spatial hashing of data related to N-dimensional points. Each point is projected onto a projection surface to convert the three-dimensional (3D) coordinates for the point to two-dimensional (2D) coordinates associated with the projection surface. Hash values based on the 2D coordinates are then used as an index to store data in the projective hash map. Utilizing the 2D coordinates rather than the 3D coordinates allows for more efficient searches to be performed to locate points in the 3D space. In particular, projective hash maps can be utilized by graphics applications for generating images, and the improved efficiency can, for example, enable a game streaming application on a server to render images transmitted to a user device via a network at faster frame rates.
-
8.发明公开公开(公告)号：US20230298257A1
公开(公告)日：2023-09-21
申请号：US18169387
申请日：2023-02-15
Applicant: Nvidia Corporation
Inventor： Pascal Gautron , Carsten Waechter
CPC classification number: G06T15/06 , G06T15/55 , G06T15/005 , G06T15/40 , G06T15/04 , G06T2215/12
Abstract: Systems and methods to implement a technique for determining an environment importance sampling function. An environment map may be provided where lighting information about the environment is known, but where certain pixels within a scene associated with the environment map are shaded. From these shaded pixels, rays may be drawn in random directions to determine whether the rays are occluded or can interact with the environment map, which provides an indication of a source of lighting that can be used for light transport simulations. A mask may be generated based on these occlusions and used to update the environment importance sampling function.
-
公开(公告)号：US20220019573A1
公开(公告)日：2022-01-20
申请号：US16930633
申请日：2020-07-16
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
Abstract: Approaches in accordance with various embodiments can perform spatial hash map updates while ensuring the atomicity of the updates for arbitrary data structures. A hash map can be generated for a dataset where entries in the hash map may correspond to multiple independent values, such as pixels of an image to be rendered. Update requests for independent values may be received on multiple concurrent threads, but change requests for independent values corresponding to a hash map entry can be aggregated from a buffer and processed iteratively in a single thread for a given hash map entry. In the case of multi-resolution spatial hashing where data can be stored at various discretization levels, this operation can be repeated to propagate changes from one level to another.
-
公开(公告)号：US20230297562A1
公开(公告)日：2023-09-21
申请号：US18186751
申请日：2023-03-20
Applicant: Nvidia Corporation
Inventor： Pascal Gautron
CPC classification number: G06F16/2379 , G06F16/2255 , G06F9/46 , G06T15/06
Abstract: Approaches in accordance with various embodiments can perform spatial hash map updates while ensuring the atomicity of the updates for arbitrary data structures. A hash map can be generated for a dataset where entries in the hash map may correspond to multiple independent values, such as pixels of an image to be rendered. Update requests for independent values may be received on multiple concurrent threads, but change requests for independent values corresponding to a hash map entry can be aggregated from a buffer and processed iteratively in a single thread for a given hash map entry. In the case of multi-resolution spatial hashing where data can be stored at various discretization levels, this operation can be repeated to propagate changes from one level to another.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.016 seconds)
