Thanks Michael,
That seem to be a well documented problem but I failed to find the proper terminology to find references to it.

<If you want to get a better looking image, you would want to use a rendering program to do that which in its rendering process will be able to do a much more detailed and also more time consuming approach rather than the "focused on doing things quickly and within the constraints of how video cards work" that the MoI display engine is targeting.>

Could you suggest a low cost rendering program with a "smoother" learning curve than Blender?
Gaston