U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

US Patent Application 20080158227 - Method and apparatus for multi-level ray tracing

Application 20080158227 Filed on December 29, 2006. Published on July 3, 2008

Inventors

US Class

345/426Lighting/shading

Attorney, Agent or Firm

International Class

G06T 15/50

Issued Patent Number:

7755628



Inventors

US Class

345/426Lighting/shading

Attorney, Agent or Firm

International Class

G06T 15/50

Issued Patent Number:

7755628
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