public Vector3f Unproject(float mouseX, float mouseY)
{
Vector3f vec = new Vector3f();
vec.x = -2f * (mouseX / width);
vec.y = 2f * (mouseY / height);
vec.z = 0f;
vec.MultiplyStore(projMatrix.Invert());
vec.MultiplyStore(viewMatrix.Invert());
vec.SubtractStore(Translation);
return(vec);
}
/// <summary>Transform a Normal by the given Matrix</summary>
/// <remarks>
/// This calculates the inverse of the given matrix, use TransformNormalInverse if you
/// already have the inverse to avoid this extra calculation
/// </remarks>
/// <param name="norm">The normal to transform</param>
/// <param name="mat">The desired transformation</param>
/// <param name="result">The transformed normal</param>
public static void TransformNormal(ref Vector3d norm, ref Matrix4f mat, out Vector3d result)
{
Matrix4f Inverse = Matrix4f.Invert(mat);
Vector3d.TransformNormalInverse(ref norm, ref Inverse, out result);
}
