public static float3 operator *( float3x3 _Op0, float3 _Op1 )
{
return new float3( _Op0.m[0, 0]*_Op1.x + _Op0.m[0, 1]*_Op1.y + _Op0.m[0, 2]*_Op1.z,
_Op0.m[1, 0]*_Op1.x + _Op0.m[1, 1]*_Op1.y + _Op0.m[1, 2]*_Op1.z,
_Op0.m[2, 0]*_Op1.x + _Op0.m[2, 1]*_Op1.y + _Op0.m[2, 2]*_Op1.z );
}