V
Variables
arithmetic operations and, 50-51
conversion, 47-48, 155
declaring type, 42-46
defined, 42
local and global, 46-47, 64
naming conventions, 81
option variables, 336-337
procedures and, 62
replacing explicit values, 117-118
for vertex locations, 89-90, 95-96
visibility of, and groups, 64
Vectors
adding and subtracting, 17--21
arrowhead depiction of, 17
cross product, 25, 50
delta, 19-20
described, 15
dot product, 24
magnitude of, 16-17, 22, 47-48, 155
mathematical notation for, 16-17
normalizing, 21, 22
scalar product, 23-24
unit vector, 21
vector variables, 43-44, 50
x, y, z components , 16-17
Vertical pipe (() hierarchical name separator, 416
Vertical pipes ((() logical operator, 55
Vertices
co-ordinates for, 89-91, 95-96
merging, 98-101
Viewport view vs. rendered view, 262-263
Visibility attribute, 243