/// <summary>
/// Checks whether the current triangle intersects with a line segment.
/// </summary>
/// <returns>
/// The distance between the intersection point and v1.
/// </returns>
public void Intersects(ref Vector3 v1, ref Vector3 v2, out float?result)
{
const float Epsilon = 1E-10F;
Vector3 dir;
Vector3.Subtract(ref v2, ref v1, out dir);
float length = dir.Length();
if (length <= Epsilon)
{
result = null;
return;
}
float inv = 1.0f / length;
dir.X *= inv;
dir.Y *= inv;
dir.Z *= inv;
RayExtensions.Intersects(new Ray(v1, dir), ref V1, ref V2, ref V3, out result);
if (result.HasValue && result.Value > length)
{
result = null;
}
}
/// <summary>
/// Checks whether the current triangle intersects with a ray.
/// </summary>
public float?Intersects(Ray ray)
{
float?result;
RayExtensions.Intersects(ray, ref V1, ref V2, ref V3, out result);
return(result);
}
/// <summary>
/// Checks whether the current triangle intersects with a ray.
/// </summary>
public void Intersects(ref Ray ray, out float?result)
{
RayExtensions.Intersects(ray, ref V1, ref V2, ref V3, out result);
}