Invention Grant
- Patent Title: Start node determination for tree traversal in ray tracing applications
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Application No.: US14257385Application Date: 2014-04-21
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Publication No.: US09697640B2Publication Date: 2017-07-04
- Inventor: Juraj Obert , Vineet Goel , Ouns Mouri
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: G06T15/06
- IPC: G06T15/06 ; G06K9/00

Abstract:
At least one processor may organize a plurality of primitives in a hierarchical data structure. The at least one processor may rasterize a plurality of bounding volumes associated with non-root nodes of the hierarchical data structure to an off-screen render target. The at least one processor may determine a bounding volume that is intersected by a ray out of the plurality of bounding volumes. The at least one processor may determine a non-root node of the hierarchical data structure that is associated with the bounding volume as a start node in the hierarchical data structure to start traversal of the hierarchical data structure. The at least one processor may traverse the hierarchical data structure starting from the start node to determine the primitive that is intersected by the ray.
Public/Granted literature
- US20150302629A1 START NODE DETERMINATION FOR TREE TRAVERSAL IN RAY TRACING APPLICATIONS Public/Granted day:2015-10-22
Information query
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T15/00 | 3D〔三维〕图像的加工 |
G06T15/06 | .光线跟踪 |