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Method and an apparatus for generating reflection vectors which can be unnormalized and for using these reflection vectors to index locations on an environment map

  • US 5,704,024 A
  • Filed: 07/20/1995
  • Issued: 12/30/1997
  • Est. Priority Date: 07/20/1995
  • Status: Expired due to Term
First Claim
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1. A method for generating a reflection vector, said method comprising the steps of:

  • a) receiving an eye vector (E) and a normal vector (N) at least one of which is not normalized; and

    b) producing a reflection vector (R) without vector normalization.

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