March 2016
Intermediate to advanced
320 pages
9h 14m
English
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32 I Geometry Manipulation
kind
4
0
3 0 2 4 ? ? ? ?
v3
12
13
15
14
t0
t2
t1
c0 c1...
... ... ... ...
0.0, 0.0
0.5, 0.0
1.0, 0.0
domain coords
c2 c1...
c1 c1...
0.5 0.625...
0.25...
123
f0
face,
edge,
vertex
points
transition
points
control
mesh
3
2
1
0c0
c1
c2
c3
verts
id label
influences
weights
c1
Regular patch
Irregular patch
c0
e3 f0 e1
t2t1t0
Figure 2.13. A regular and irregular patch sharing an edge, with crack-welding transi-
tion points along the boundary.
Figure 2.14. An edge shared by regular patches (blue) and irregular patches (red),
shown with tessellation factors desynchronized (top) and synchronized (bottom).
2.5.3 Bireversal Invariant B-Spline Basis
When two regular patches share ...