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11.发明申请GRAPHICS PROCESSING SUBSYSTEM AND METHOD FOR UPDATING VOXEL REPRESENTATION OF A SCENE 有权图形处理子系统和用于更新场景的VOXEL表示的方法公开(公告)号：US20150109296A1
公开(公告)日：2015-04-23
申请号：US14160883
申请日：2014-01-22
Applicant: Nvidia Corporation
Inventor： Alexey Panteleev , Sergey Bolotov , Evgeny Makarov , Yury Uralsky
CPC classification number: G06T15/005 , G06T15/08 , G06T15/20 , G06T15/80
Abstract: A graphics processing subsystem and method for updating a voxel representation of a scene. One embodiment of the graphics processing subsystem includes: (1) a memory configured to store a voxel representation of a scene having first and second regions to be updated, and (2) a graphics processing unit (GPU) operable to: (2a) unify the first and second regions into a bounding region if a volume thereof does not exceed summed volumes of the first and second regions by more than a tolerance, and (2b) generate voxels for the bounding region and cause the voxels to be stored in the voxel representation.
Abstract translation: 用于更新场景的体素表示的图形处理子系统和方法。 图形处理子系统的一个实施例包括：（1）存储器，被配置为存储具有要更新的第一和第二区域的场景的体素表示，以及（2）可操作以：（2a）统一 如果第一区域和第二区域的体积不超过第一区域和第二区域的相加体积超过公差，则为第一区域和第二区域，并且（2b）为边界区域生成体素并且使体素存储在体素中 表示。
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公开(公告)号：US20230326124A1
公开(公告)日：2023-10-12
申请号：US18317726
申请日：2023-05-15
Applicant: Nvidia Corporation
Inventor： Alexey Panteleev
CPC classification number: G06T15/506 , G06T13/20 , G06T2207/10016 , G06T7/248 , G06T7/97
Abstract: Robust temporal gradients, representing differences in shading results, can be computed between current and previous frames in a temporal denoiser for ray-traced renderers. Backward projection can be used to locate matching surfaces, with the relevant parameters of those surfaces being carried forward and used for patching. Backward projection can be performed for each stratum in a current frame, a stratum representing a set of adjacent pixels. A pixel from each stratum is selected that has a matching surface in the previous frame, using motion vectors generated during the rendering process. A comparison of the depth of the normals, or the visibility buffer data, can be used to determine whether a given surface is the same in the current frame and the previous frame, and if so then parameters of the surface from the previous frame G-buffer is used to patch the G-buffer for the current frame.
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公开(公告)号：US20220292758A1
公开(公告)日：2022-09-15
申请号：US17683703
申请日：2022-03-01
Applicant: Nvidia Corporation
Inventor： Nuno Raposo Subtil , Manuel Kraemer , Alexey Panteleev , Mike Songy
Abstract: The disclosure provides a rendering system and a rendering method that split the pixels of a full frame into partial image fields and process those image fields individually in parallel. In one example, the rendering system includes: (1) an interface configured to receive a full frame, and (2) one or more processors, coupled to the interface, that split the full frame into a plurality of partial image fields, each of the partial image fields corresponding to different pixels of the full frame, process the partial image fields in parallel; and render the full frame using the processed partial image fields. The partial image fields are processed by ray tracing each of the partial image fields using a different type of ray in parallel.
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14.发明申请公开(公告)号：US20220262062A1
公开(公告)日：2022-08-18
申请号：US17662516
申请日：2022-05-09
Applicant: NVIDIA Corporation
Inventor： Nuno Raposo Subtil , Manuel Kraemer , Alexey Panteleev , Mike Songy
Abstract: Systems and methods of the present disclosure relate to fine grained interleaved rendering applications in path tracing for cloud computing environments. For example, a renderer and a rendering process may be employed for ray or path tracing and image-space filtering that interleaves the pixels of a frame into partial image fields and corresponding reduced-resolution images that are individually processed in parallel. Parallelization techniques described herein may allow for high quality rendered frames in less time, thereby reducing latency (or lag, in gaming applications) in high performance applications.
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公开(公告)号：US20220237861A1
公开(公告)日：2022-07-28
申请号：US17718780
申请日：2022-04-12
Applicant: Nvidia Corporation
Inventor： Alexey Panteleev
Abstract: Determining the occlusions or shadows for an area light within a scene is difficult, especially realistic shadowing in large and dynamic scenes. The disclosure provides an adaptive occlusion sampling process that uses voxel cone tracing to distribute the voxel tracing cones on the surface of area lights to obtain samples for shadowing in computer generated images or scenes. A method of adaptive occlusion sampling from a rectangular area light is disclosed that can be used to provide realistic shadowing in a computer generated scene. A process to compute a shadow of an area light within a scene is also disclosed herein that includes obtaining samples, employing voxel cone tracing, from a light surface of the area light based on sample points of a sampling grid created from sample patterns that are based on a determined number of cones.
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Patent Agency Ranking
公开(公告)号：US20220108497A1
公开(公告)日：2022-04-07
申请号：US17204749
申请日：2021-03-17
Applicant: NVIDIA Corporation
Inventor： Alexey Panteleev
IPC: G06T11/00
Abstract: Devices, systems, and techniques to incorporate lighting effects into computer-generated graphics. In at least one embodiment, a graphical frame depicting a virtual scene comprising is rendered by generating a record indicative of one or more lights in the virtual scene, and using the record to render a pixel. A second record, indicative of other lights in the virtual scene, is selected to combine with the first record, based at least in part on similarity between surfaces associated with the respective records. The combined record is used to render a pixel in a second graphical frame.
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公开(公告)号：US10891783B2
公开(公告)日：2021-01-12
申请号：US16482377
申请日：2019-03-19
Applicant: Nvidia Corporation
Inventor： Alexey Panteleev
Abstract: Determining the occlusions or shadows for an area light within a scene is difficult, especially realistic shadowing in large and dynamic scenes. The disclosure provides an adaptive occlusion sampling process that uses voxel cone tracing to distribute the voxel tracing cones on the surface of area lights to obtain samples for shadowing in computer generated images or scenes. A method of adaptive occlusion sampling from a rectangular area light is disclosed that can be used to provide realistic shadowing in a computer generated scene. A process to compute a shadow of an area light within a scene is also disclosed herein that includes obtaining samples, employing voxel cone tracing, from a light surface of the area light based on sample points of a sampling grid created from sample patterns that are based on a determined number of cones.
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公开(公告)号：US09761037B2
公开(公告)日：2017-09-12
申请号：US14160883
申请日：2014-01-22
Applicant: Nvidia Corporation
Inventor： Alexey Panteleev , Sergey Bolotov , Evgeny Makarov , Yury Uralsky
CPC classification number: G06T15/005 , G06T15/08 , G06T15/20 , G06T15/80
Abstract: A graphics processing subsystem and method for updating a voxel representation of a scene. One embodiment of the graphics processing subsystem includes: (1) a memory configured to store a voxel representation of a scene having first and second regions to be updated, and (2) a graphics processing unit (GPU) operable to: (2a) unify the first and second regions into a bounding region if a volume thereof does not exceed summed volumes of the first and second regions by more than a tolerance, and (2b) generate voxels for the bounding region and cause the voxels to be stored in the voxel representation.
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19.发明授权公开(公告)号：US12056806B2
公开(公告)日：2024-08-06
申请号：US17662516
申请日：2022-05-09
Applicant: NVIDIA Corporation
Inventor： Nuno Raposo Subtil , Manuel Kraemer , Alexey Panteleev , Mike Songy
CPC classification number: G06T15/06 , G06T1/20 , G06T5/20 , G06T5/50 , H04L67/10 , G06T2207/20221 , G06T2210/08 , G06T2210/52 , G06T2210/61
Abstract: Systems and methods of the present disclosure relate to fine grained interleaved rendering applications in path tracing for cloud computing environments. For example, a renderer and a rendering process may be employed for ray or path tracing and image-space filtering that interleaves the pixels of a frame into partial image fields and corresponding reduced-resolution images that are individually processed in parallel. Parallelization techniques described herein may allow for high quality rendered frames in less time, thereby reducing latency (or lag, in gaming applications) in high performance applications.
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公开(公告)号：US12039633B2
公开(公告)日：2024-07-16
申请号：US17204749
申请日：2021-03-17
Applicant: NVIDIA Corporation
Inventor： Alexey Panteleev
IPC: G06T11/00
CPC classification number: G06T11/001
Abstract: Devices, systems, and techniques to incorporate lighting effects into computer-generated graphics. In at least one embodiment, a graphical frame depicting a virtual scene comprising is rendered by generating a record indicative of one or more lights in the virtual scene, and using the record to render a pixel. A second record, indicative of other lights in the virtual scene, is selected to combine with the first record, based at least in part on similarity between surfaces associated with the respective records. The combined record is used to render a pixel in a second graphical frame.
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