public void LengthSquared()
{
var vector1 = new Vector4(1, 2, 3, 4);
Assert.AreEqual(30, vector1.LengthSquared());
}
public static void LengthSquared (int times)
{
var value = new Vector4 (0.1f, -2f, -0.2f, 0.56f);
float result;
for (int i = 0; i < times; i++) {
result = value.LengthSquared ();
}
}
void _CreateTangentSpace(out Vector4 normal, out Vector4 tangent, out Vector4 binormal)
{
Vector3 point0 = new Vector3(-1.0f, -1.0f, 0.0f);
Vector3 point1 = new Vector3(1.0f, -1.0f, 0.0f);
Vector3 point2 = new Vector3(1.0f, 1.0f, 0.0f);
Vector3 point3 = new Vector3(-1.0f, 1.0f, 0.0f);
Vector3 v3n = Vector3.Cross(point1 - point0, point2 - point0);
normal = new Vector4(v3n.X, v3n.Y, v3n.Z, 0.0f);
if (normal.LengthSquared() > 0.0001f)
normal.Normalize();
Vector3 v3tangent = point1 - point0;
tangent = new Vector4(v3tangent.X, v3tangent.Y, v3tangent.Z, 0.0f);
if (tangent.LengthSquared() > 0.0001f)
tangent.Normalize();
Vector3 v3binormal = point3 - point0;
binormal = new Vector4(v3binormal.X, v3binormal.Y, v3binormal.Z, 0.0f);
if (binormal.LengthSquared() > 0.0001f)
binormal.Normalize();
}
