Hey, direct operators aren't supported at the moment (its a feature I will most definitely add though) but you can use the indirect ones for now. For example, operator * should be translated as "Multiply" function, + should be "Add" etc. (I don't remember exact naming off the top of my head), so you should be able to do something like IMatrix3 m3 = m1.Multiply( m2 );

Marsel Khadiyev (Software Developer, EPHERE Inc.)

You're right, IMatrix3 seems to have not translated those operators for some reason. I didn't notice this because I only dealt with IPoint3 operators personally. I've put this on todo for next build. Meanwhile perhaps you can implement a custom/standard row/column multiplication function? Here's one I have (from an unrelated project) for 3x3 matrix:

public static Matrix3 operator *( Matrix3 m1, Matrix3 m2 )
        {
            Matrix3 result = Matrix3.Zero;
            for( int i = 0; i < 3; ++i )
            {
                for( int j = 0; j < 3; ++j )
                {
                    for( int k = 0; k < 3; ++k )
                    {
                        result[i, j] += m1[i, k] * m2[k, j];
                    }
                }
            }
            return result;
        }

And for a 4x3 transform (which is what Matrix3 is in Max, I believe):

public static Xform3 operator *( Xform3 xform1, Xform3 xform2 )
        {
            Xform3 result = new Xform3();
            Matrix3 mR = xform1.Rotation;

            // multiply rotation matrices
            result.Rotation = mR * xform2.Rotation;

            // d = M.R * N.t + M.t
            result.Translation = ( mR * xform2.Translation ) + xform1.Translation;

            return result;
        }

The above function uses column-major format, I think Max uses row-major so some transposing might be required. Sorry for this inconvenience.

Marsel Khadiyev (Software Developer, EPHERE Inc.)

Just fixed this, look for it in the next build.

Marsel Khadiyev (Software Developer, EPHERE Inc.)