Graphics Reference
In-Depth Information
Y
n
2
n
1
T
1
v
t
X
Figure 6.27.
11
1
11 1
00 0
1
4
x T =
=
0
01
1
01 1
20 0
1
4
4
4 =
y T =
=
1
011
011
200
1
4
z T =
=
0
Therefore, the line equation is
=
+
p
j
i
Remember that the direction of v could have been reversed if n 1 and n 2 had been reversed in
the cross-product calculation.
This example concludes this chapter on intersections. Hopefully, the reader will feel confident
to undertake other intersection problems by implementing some of the above strategies.
 
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