public void ClampPointToSurfaceForcesOffsetToOriginAlongNormalWhenPlaneIsTilted(
[NUnit.Framework.Random(-10.0, 10.0, 3)] double x,
[NUnit.Framework.Random(-10.0, 10.0, 3)] double y,
[NUnit.Framework.Values(0.0)] double z)
{
normal = new Vector3(.3f, .7f, 0f);
testObj = new PlaneSurface(origin, normal, up);
var pos = new Vector3((float)x, (float)y, (float)z);
var delta = pos - origin;
var distanceFromSurface = Vector3.Dot(delta, normal.normalized);
var pointOnSurface = pos - (distanceFromSurface * normal.normalized);
TestUtil.AssertApproximatelyEqual(pointOnSurface, testObj.ClampPointToSurface(pos));
}
