Magnification of indirection textures

Details Magnification of indirection textures Magnification of indirection textures

2008-07-15

2008-07-15

Sajous, Wesner (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S552000, C345S587000, C345S606000, C345S671000, C382S300000, C382S305000, C382S274000

Reexamination Certificate

active

11171923

ABSTRACT:
An indirection texture magnification system and method for producing high-resolution indirection texture results. The system and method uses an indirection texture, designed for use with a low-resolution texture image, and a high-resolution texture image, which is a higher-resolution version of the low-resolution texture image. The indirection texture magnification system and method re-interprets an indirection texture computed for a low-resolution image so that a higher-resolution image can be used with the same indirection texture. This generates additional samples and allows the generation of a magnified, high-resolution indirection texture result. The indirection texture magnification system and method takes three or more neighboring pixel coordinates stored in an indirection texture and offsets those pixel coordinates in order to access the higher-resolution image with an increased precision. Colors obtained from adding this offset are combined to obtain a color for a corresponding pixel at a certain location in the magnified, high-resolution indirection texture result.

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