Appeal No. 1999-2640
Application 08/918,267
filtering applied to texture generation (FR3). The Examiner
finds that Thier shows line segments in different planes for
texture mapping in the abstract (FR3). The Examiner concludes
that it would have been obvious "to apply line segment based
texturing . . . to Kato because of the line segments forming
texture variables shown in Fig. 6B" (FR3). The Examiner also
concludes that it would have been obvious "to apply Foley's
texture filtering generating texture for each position by
surface rendering surface color information based on position
values generated for each position and Thier's multiple planes
to Kato because of Foley's taught application of filtering
techniques to texture generation such as Kato's and Thier's"
(FR4).
Kato is directed to a texture mapping technique. Texture
mapping maps a two-dimensional image, known as a texture map
or texture picture, onto the surface of a three-dimensional
object by transforming (distorting) the image into the object
coordinate system and onto the surface of the object (Foley,
pp. 741-743; Kato, Figs. 6A-6C). Texture mapping assumes that
a strict three-dimensional shape (configuration) on a surface
of an object to be applied with a texture is previously known
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