Invention Grant
- Patent Title: Systems and methods for texture-space ray tracing of transparent and translucent objects
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Application No.: US16282117Application Date: 2019-02-21
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Publication No.: US10970913B2Publication Date: 2021-04-06
- Inventor: Colin Barré-Brisebois
- Applicant: Electronic Arts Inc.
- Applicant Address: US CA Redwood City
- Assignee: Electronic Arts Inc.
- Current Assignee: Electronic Arts Inc.
- Current Assignee Address: US CA Redwood City
- Agency: Leydig, Voit & Mayer Ltd.
- Main IPC: G06T15/06
- IPC: G06T15/06

Abstract:
Disclosed is a hybrid approach to rendering transparent or translucent objects, which combines object-space ray tracing with texture-space parametrization and integration. Transparent or translucent objects are first parameterized using two textures: (1) a texture that stores the surface normal at each location on the transparent or translucent object, and (2) a texture that stores the world space coordinates at each location on the transparent or translucent object. Ray tracing can then be used to streamline and unify the computation of light transport inside thick mediums, such as transparent or translucent objects, with the rest of the scene. For each valid (e.g., visible) location on the surface of a transparent or translucent object, the disclosed embodiments trace one or more rays through such objects and compute the resulting lighting in an order-independent fashion. The results are stored in a texture, which is then applied during the final lighting stage.
Public/Granted literature
- US20200273233A1 SYSTEMS AND METHODS FOR TEXTURE-SPACE RAY TRACING OF TRANSPARENT AND TRANSLUCENT OBJECTS Public/Granted day:2020-08-27
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 |