public bool Find()
{
if (Result != IntersectionResult.NotComputed)
{
return(Result == IntersectionResult.Intersects);
}
// [RMS] if either line direction is not a normalized vector,
// results are garbage, so fail query
if (ray.Direction.IsNormalized == false)
{
Type = IntersectionType.Empty;
Result = IntersectionResult.InvalidQuery;
return(false);
}
RayParam0 = 0.0;
RayParam1 = double.MaxValue;
IntrLine3AxisAlignedBox3.DoClipping(ref RayParam0, ref RayParam1, ref ray.Origin, ref ray.Direction, ref box,
true, ref Quantity, ref Point0, ref Point1, ref Type);
Result = (Type != IntersectionType.Empty) ?
IntersectionResult.Intersects : IntersectionResult.NoIntersection;
return(Result == IntersectionResult.Intersects);
}
/// <summary>
/// Find intersection of ray with AABB, without having to construct any new classes.
/// Returns ray T-value of first intersection (or double.MaxVlaue on miss)
/// </summary>
public static bool FindRayIntersectT(ref Ray3d ray, ref AxisAlignedBox3d box, out double RayParam)
{
double RayParam0 = 0.0;
double RayParam1 = double.MaxValue;
int Quantity = 0;
Vector3d Point0 = Vector3d.Zero;
Vector3d Point1 = Vector3d.Zero;
IntersectionType Type = IntersectionType.Empty;
IntrLine3AxisAlignedBox3.DoClipping(ref RayParam0, ref RayParam1, ref ray.Origin, ref ray.Direction, ref box,
true, ref Quantity, ref Point0, ref Point1, ref Type);
if (Type != IntersectionType.Empty)
{
RayParam = RayParam0;
return(true);
}
else
{
RayParam = double.MaxValue;
return(false);
}
}
