Game Development Reference
In-Depth Information
Figure 7.9
Sphere-plane intersection in a case where they don't intersect.
As with sphere-sphere intersection, the code for sphere-plane intersection is not
that complex, and is outlined in
Listing 7.5
.
Listing 7.5
Sphere versus Plane Intersection
function
SpherePlaneIntersection(
BoundingSphere
s
,
Plane
p
)
// Calculate d for the plane with normal
p.normal and
// point on plane s.center
float
dSphere
= -DotProduct(
p
.
normal
,
s
.
center
)
// Check if we're within range
return
(abs(
d
-
dSphere
) <
s
.
radius
)
end
