public Ray Transform(RtMatrix tranformation)
{
var newOrigin = tranformation * Origin;
var newDirection = tranformation * Direction;
return(new Ray(newOrigin, newDirection));
}
public RtMatrix Inverse()
{
if (_inverseMatrix != RtMatrix.Identity)
{
return(_inverseMatrix);
}
_inverseMatrix = Matrix.Inverse();
return(_inverseMatrix);
}
public RtVector NormalToWorld(RtVector normal)
{
normal = RtMatrix.Transpose(Transform.Inverse()) * normal;
normal = normal.Normalize();
if (Parent != null)
{
normal = Parent.NormalToWorld(normal);
}
return(normal);
}
public Transform(RtMatrix matrix)
{
Matrix = matrix;
}
public bool Equals(RtMatrix other)
{
return(Matrix.Equals(other));
}