public static void Intersects(ref Vector3 vector, ref Triangle3 triangle, out bool result)
{
var v0 = triangle.Point2 - triangle.Point1;
var v1 = triangle.Point3 - triangle.Point1;
var v2 = vector - triangle.Point1;
float dot00 = v0.Dot();
float dot01 = v0.Dot(v1);
float dot02 = v0.Dot(v2);
float dot11 = v1.Dot();
float dot12 = v1.Dot(v2);
float invDenom = 1 / ((dot00 * dot11) - (dot01 * dot01));
float u = ((dot11 * dot02) - (dot01 * dot12)) * invDenom;
float v = ((dot00 * dot12) - (dot01 * dot02)) * invDenom;
result = (u > 0) && (v > 0) && ((u + v) < 1);
}
public bool Intersects(Triangle3 triangle)
{
var v0 = triangle.Point2 - triangle.Point1;
var v1 = triangle.Point3 - triangle.Point1;
var v2 = this - triangle.Point1;
float dot00 = v0.Dot();
float dot01 = v0.Dot(v1);
float dot02 = v0.Dot(v2);
float dot11 = v1.Dot();
float dot12 = v1.Dot(v2);
float invDenom = 1 / ((dot00 * dot11) - (dot01 * dot01));
float u = ((dot11 * dot02) - (dot01 * dot12)) * invDenom;
float v = ((dot00 * dot12) - (dot01 * dot02)) * invDenom;
return((u > 0) && (v > 0) && ((u + v) < 1));
}
public bool Intersects(Triangle3 triangle)
{
var v0 = triangle.Point2 - triangle.Point1;
var v1 = triangle.Point3 - triangle.Point1;
var v2 = this - triangle.Point1;
float dot00 = v0.Dot();
float dot01 = v0.Dot(v1);
float dot02 = v0.Dot(v2);
float dot11 = v1.Dot();
float dot12 = v1.Dot(v2);
float invDenom = 1 / ((dot00*dot11) - (dot01*dot01));
float u = ((dot11*dot02) - (dot01*dot12)) * invDenom;
float v = ((dot00*dot12) - (dot01*dot02)) * invDenom;
return (u>0) && (v>0) && ((u+v) < 1);
}
public static void Intersects(ref Vector3 vector, ref Triangle3 triangle, out bool result)
{
var v0 = triangle.Point2 - triangle.Point1;
var v1 = triangle.Point3 - triangle.Point1;
var v2 = vector - triangle.Point1;
float dot00 = v0.Dot();
float dot01 = v0.Dot(v1);
float dot02 = v0.Dot(v2);
float dot11 = v1.Dot();
float dot12 = v1.Dot(v2);
float invDenom = 1 / ((dot00*dot11) - (dot01*dot01));
float u = ((dot11*dot02) - (dot01*dot12)) * invDenom;
float v = ((dot00*dot12) - (dot01*dot02)) * invDenom;
result = (u>0) && (v>0) && ((u+v) < 1);
}
public static void Normal(ref Triangle3 triangle, out Vector3 result)
{
Vector3 vector1 = (triangle.Point1 - triangle.Point2), vector2 = (triangle.Point3 - triangle.Point1);
result = new Vector3(-((vector1.Y * vector2.Z) - (vector1.Z * vector2.Y)), -((vector1.Z * vector2.X) - (vector1.X * vector2.Z)), -((vector1.X * vector2.Y) - (vector1.Y * vector2.X))).Normalize();
}
public static void Normal(ref Triangle3 triangle, out Vector3 result)
{
Vector3 vector1 = (triangle.Point1-triangle.Point2), vector2 = (triangle.Point3-triangle.Point1);
result = new Vector3(-((vector1.Y*vector2.Z) - (vector1.Z*vector2.Y)), -((vector1.Z*vector2.X) - (vector1.X*vector2.Z)), -((vector1.X*vector2.Y) - (vector1.Y*vector2.X))).Normalize();
}