December 2013
Intermediate to advanced
508 pages
16h 50m
English
Content preview from Practical Algorithms for 3D Computer Graphics, 2nd Edition
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450 10. Modeling with polygonal datasets
(a) (b)
Figure 10.70: Interactively moving the texture map coordina tes by superimposing the
2D texture coordinates mesh over an imag e. (a) The 3D mesh model. (b) The 2D
texture coordinates and image to be wrapped around the mes h .
whole mesh is triangulated. When the mesh represents a non-planar surface,
the faces adjacent to the reference frame will need to be temporarily rotated
around the common edge with the reference face, so that both faces lie in a
plane. Once aligned in a plane, a 2D mappin g coordinate can be generated
at their non-common vertex. A suitable transformation can be obtained by
recognizing ...
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