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公开(公告)号：US20240062453A1
公开(公告)日：2024-02-22
申请号：US18500016
申请日：2023-11-01
Applicant: QUALCOMM Incorporated
CPC classification number: G06T15/06 , G06T17/005 , G06T17/10
Abstract: Systems and techniques are provided for determining bounding regions for a hierarchical structure for ray tracing. For instance, a process can include obtaining an acceleration data structure, the acceleration data structure including one or more primitives of a scene object. A graph cut can be applied to the acceleration data structure. A set of nodes of the acceleration data structure can be determined based on the graph cut, wherein the determined set of nodes is located adjacent to the graph cut. A world-space bounding box can be generated for the scene object, using the set of nodes determined based on the graph cut.
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公开(公告)号：US20230252716A1
公开(公告)日：2023-08-10
申请号：US17665327
申请日：2022-02-04
Applicant: QUALCOMM Incorporated
CPC classification number: G06T15/06 , G06T17/005 , G06T17/10
Abstract: Systems and techniques are provided for determining bounding regions for a hierarchical structure for ray tracing. For instance, a process can include obtaining an acceleration data structure, the acceleration data structure including one or more primitives of a scene object. A graph cut can be applied to the acceleration data structure. A set of nodes of the acceleration data structure can be determined based on the graph cut, wherein the determined set of nodes is located adjacent to the graph cut. A world-space bounding box can be generated for the scene object, using the set of nodes determined based on the graph cut.
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公开(公告)号：US20230252727A1
公开(公告)日：2023-08-10
申请号：US17650069
申请日：2022-02-04
Applicant: QUALCOMM Incorporated
CPC classification number: G06T17/10 , G06T15/08 , G06T15/06 , G06T9/001 , G06T2210/21
Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU or CPU. The apparatus may configure a BVH structure including a plurality of nodes, the BVH structure being associated with geometry data for a plurality of primitives in a scene. The apparatus may also detect a set of hit child nodes for a current node of the plurality of nodes. Further, the apparatus may sort the set of hit child nodes based on the parametric distance value of each of the set of hit child nodes. The apparatus may also compress the node ID and the parametric distance value for each of an updated set of hit child nodes based on the sorted set of hit child nodes. The apparatus may also store the compressed node ID and the compressed parametric distance value for each of the updated set of hit child nodes.
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公开(公告)号：US20230252726A1
公开(公告)日：2023-08-10
申请号：US17650066
申请日：2022-02-04
Applicant: QUALCOMM Incorporated
CPC classification number: G06T17/10 , G06T15/08 , G06T15/06 , G06T9/001 , G06T2210/21
Abstract: Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., a GPU or CPU. The apparatus may configure a BVH structure including a plurality of nodes, the BVH structure being associated with geometry data for a plurality of primitives in a scene. The apparatus may also detect a set of child nodes for a current node of the plurality of nodes. Further, the apparatus may identify a first child node of the set of child nodes based on a node ID of the first child node. The apparatus may also calculate an offset between the node ID of the first child node and a node ID of each of the remaining child nodes in the set of child nodes. The apparatus may also store a representation of the node ID of each of the set of child nodes based on the calculated offset.
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