[Renato Lemus]

You can do that specifying -mxi:w in the command line options.

Later on, you can re-render adding another command: -mxi:c (you can even specify the mxi file location, but I'm very lazy and I let maxwell write it for me)

This way, you can specify another bunch of hours to continue smoothing your image, or even stop the processing, and then continue without losing the previous processing time.


regards

[Renato Lemus]

so actually, what you say is that the mxi file saves also the pixel values themselves to later keep on going .. forever theoretically..
Is there an interface option for that, or just command line ?

Yes, even at a higher sampling level. This way you can accumulate hours and hours of refinement in several sessions. By the moment, it's just a command line or you can add the same parameters as a text directly in the max renderdialog.