04/15/2003
15-462 Graphics I
14
Isosurfaces
•f(x,y,z)
represents volumetric data set
•Two
rendering methods
–Isosurface
rendering
–Direct
volume rendering (use all values [next])
•Isosurface given by f(x,y,z) = c
•Recall
implicit surface g(x, y, z):
–g(x,
y, z) < 0 inside
–g(x,
y, z) = 0 surface
–g(x,
y, z) > 0 outside
•Generalize
right-hand side from 0 to c