公开(公告)号：US20240037840A1

公开(公告)日：2024-02-01

申请号：US17816375

申请日：2022-07-29

Applicant: QUALCOMM Incorporated

Inventor： Adimulam RAMESH BABU ,  Srihari Babu ALLA ,  Avinash SEETHARAMAIAH ,  Jonnala Gadda NAGENDRA KUMAR ,  David Kirk MCALLISTER

IPC: G06T15/06 ,  G06T15/08 ,  G06T17/00 ,  G06T17/10

CPC classification number: G06T15/06 ,  G06T15/08 ,  G06T17/005 ,  G06T17/10

Abstract: Systems and techniques are provided for widening a hierarchical structure for ray tracing. For instance, a process can include obtaining a plurality of primitives of a scene object included in a first hierarchical acceleration data structure and determining one or more candidate hierarchical acceleration data structures each including the plurality of primitives. A cost metric can be determined for the one or more candidate hierarchical acceleration data structures and, based on the cost metric, a compressibility prediction associated with a candidate hierarchical acceleration data structure of the one or more candidate hierarchical acceleration data structures can be determined. An output hierarchical acceleration data structure can be generated based on the compressibility prediction.

公开(公告)号：US20240070964A1

公开(公告)日：2024-02-29

申请号：US17823948

申请日：2022-08-31

Applicant: QUALCOMM Incorporated

Inventor： Adimulam RAMESH BABU ,  Srihari Babu ALLA ,  Avinash SEETHARAMAIAH ,  Jonnala Gadda NAGENDRA KUMAR

IPC: G06T15/06 ,  G06T1/20 ,  G06T1/60 ,  G06T17/00

CPC classification number: G06T15/06 ,  G06T1/20 ,  G06T1/60 ,  G06T17/005 ,  G06T2210/12

Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU. The apparatus may obtain an indication of a BVH structure including a plurality of nodes, wherein the BVH structure is associated with geometry data for a plurality of primitives in a scene, wherein each of the plurality of nodes is associated with one or more primitives, where a first level BVH includes a set of first nodes and a second level BVH includes a set of second nodes. The apparatus may also allocate information for a plurality of second nodes in the set of second nodes to at least one first node in the set of first nodes. Further, the apparatus may store the allocated information for the plurality of second nodes in the set of second nodes in the at least one first node in the set of first nodes.

公开(公告)号：US20250022204A1

公开(公告)日：2025-01-16

申请号：US18351460

申请日：2023-07-12

Applicant: QUALCOMM Incorporated

Inventor： Adimulam RAMESH BABU ,  Srihari Babu ALLA ,  Alfredo Olegario SAUCEDO ,  Avinash SEETHARAMAIAH ,  Jonnala Gadda NAGENDRA KUMAR

IPC: G06T15/00 ,  G06T7/62 ,  G06T15/06 ,  G06T15/08

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for adaptive BVH rebuilds with biased cost functions for dynamic geometry. A graphics processor may obtain an indication of first BVH structure(s) including first nodes, where the first BVH structure(s) are representative of first geometry data for first primitives in first frame(s), where each of the first nodes is associated with first primitive(s), may detect a number of rays that intersect each of the first BVH structure(s) from direction(s) associated with the first frame(s), may update a cost function based on the number of rays and each of the direction(s), and may configure, based on the updated cost function, second BVH structure(s) including second nodes, where the second BVH structure(s) are representative of second geometry data for second primitives in second frame(s), where each of the second nodes is associated with second primitive(s).

公开(公告)号：US20230252685A1

公开(公告)日：2023-08-10

申请号：US17650071

申请日：2022-02-04

Applicant: QUALCOMM Incorporated

Inventor： Adimulam RAMESH BABU ,  Srihari Babu ALLA ,  David Kirk MCALLISTER

IPC: G06T9/40 ,  G06T9/00 ,  G06T17/10

CPC classification number: G06T9/40 ,  G06T9/001 ,  G06T17/10 ,  G06T2210/12

Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU or CPU. The apparatus may allocate each of a plurality of primitives in a scene into one of a plurality of bounding boxes, each of the plurality of bounding boxes corresponding to a plurality of nodes including internal nodes and leaf nodes. The apparatus may also identify whether each of the plurality of nodes is one of the internal nodes or one of the leaf nodes. Further, the apparatus may estimate a compressibility of each of the plurality of nodes if the node is one of the leaf nodes, the compressibility of the node corresponding to whether the node is compressible. The apparatus may also compress data corresponding to each of the plurality of nodes if the node is estimated to be compressible.

公开(公告)号：US20250061537A1

公开(公告)日：2025-02-20

申请号：US18721649

申请日：2023-01-19

Applicant: QUALCOMM Incorporated

Inventor： Adimulam RAMESH BABU ,  Srihari Babu ALLA ,  David Kirk MCALLISTER

IPC: G06T1/60

Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU. The apparatus may configure a BVH structure including a plurality of levels and a plurality of nodes, the BVH structure being associated with geometry data for a plurality of primitives in a scene. The apparatus may also identify an amount of storage in a GMEM that is available for storing at least some of the plurality of nodes in the BVH structure. Further, the apparatus may allocate the BVH structure into a first BVH section including a plurality of first nodes and a second BVH section including a plurality of second nodes. The apparatus may also store first data associated with the plurality of first nodes in the GMEM and second data associated with the plurality of first nodes and the plurality of second nodes in a system memory.

公开(公告)号：US20250046015A1

公开(公告)日：2025-02-06

申请号：US18364417

申请日：2023-08-02

Applicant: QUALCOMM Incorporated

Inventor： Alfredo Olegario SAUCEDO ,  Srihari Babu ALLA ,  Adimulam RAMESH BABU

IPC: G06T17/00 ,  G06T15/06

Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for exploiting spatial locality to speed up first-hit ray BVH traversals. A processor may generate a bounding volume hierarchy (BVH) hit map based a set of pixels, where the BVH hit map includes entries indicative of intersection information for a set of rays associated with the set of pixels, and where the BVH hit map corresponds to a BVH. The processor may select an entry from the entries of the BVH hit map based on pixel coordinate information for the set of pixels. The processor may traverse the BVH from a node of the BVH associated with the selected entry.