UtilIntersectPlaneSphere Method

public static bool IntersectPlaneSphere(
	Vector3 pointOnPlane,
	Vector3 planeNormal,
	Vector3 sphereCenter,
	double sphereRadius,
	ref Vector3 intersectCenter,
	ref double intersectRadius
)

Parameters

pointOnPlane  Vector3

Point on the plane.

planeNormal  Vector3

Normal to the plane.

sphereCenter  Vector3

Center of the sphere.

sphereRadius  Double

Radius of the sphere.

intersectCenter  Vector3

Calculated center of the intersection circle.

intersectRadius  Double

Calculated radies of the intersection circle.

Return Value

Note, the intersection circle may have zero radius, meaning the plane just touches the sphere surface.

Reference