G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 15/00 (2006.01) G06T 15/50 (2006.01)
Patent
CA 2208805
A system and method for modification of the visual characteristics of digital 3D objects includes a shading buffer wherein parameters relating to the visual characteristics of a rendered 3D object are stored. When a texture applied to the 3D object is selected for modification, a pre-rendering step is performed and a shading buffer constructed. The shading buffer includes pre-computed components of the visual characteristic information for each rendered pixel of the displayed 3D object, these components are independent of the texture selected for modification. When the texture is modified, by indicating one or more pixels on the 3D object to which the texture is applied, re-rendering of those pixels is accomplished by evaluating a simple combination of the corresponding pre-computed components in the shading buffer and the modificationeffected to the selected texture obtain new final values to render the pixels. By pre-computing and arranging the components in the shading buffer, the computational requirements for re-rendering the modified portions of the 3D object are reduced, improving the re-rendering response of the system and method and allowing real time pre-rendering in many circumstances.
Avid Technology Inc.
Microsoft Corporation
Smart & Biggar
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