Invention Grant
- Patent Title: Rendering of subsurface scattering effects in translucent objects
- Patent Title (中): 在半透明物体中渲染地下散射效应
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Application No.: US12061435Application Date: 2008-04-02
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Publication No.: US07937245B2Publication Date: 2011-05-03
- Inventor: Bruce Nunzio Tartaglia , Alexander P. Powell
- Applicant: Bruce Nunzio Tartaglia , Alexander P. Powell
- Applicant Address: US CA Glendale
- Assignee: Dreamworks Animation LLC
- Current Assignee: Dreamworks Animation LLC
- Current Assignee Address: US CA Glendale
- Agency: Morrison & Foerster LLP
- Main IPC: H03F1/26
- IPC: H03F1/26 ; G06K9/00 ; G01D18/00

Abstract:
Embodiments are directed to modifying an existing scheme for providing translucent illumination in order to take account of subsurface scattering. The color of a selected point of a translucent object can be determined using existing methods. The existing methods need not take subsurface scattering into account. Then, a contribution to the color at the selected point due to subsurface scattering may be calculated. The contribution due to subsurface scattering may be calculated based on a photon map. Embodiments of the invention also include the use of different types of photon maps. In some embodiments, a standard photon map may be used. In other embodiments, a photon map may be defined in a manner similar to a depth map. Thus, the entries of a photon map may be defined in terms of an angle from a light source and a distance between an object's surface and a light source.
Public/Granted literature
- US20090254293A1 Rendering of Subsurface Scattering Effects in Translucent Objects Public/Granted day:2009-10-08
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