How can I save single renders incrementally with max script

Question

While I am modeling I like to render a frame to show the progress as I am going along. I would like to program the renderer to save the render as a render output and add an incremental number to the end of it. So I would have a number of renders at the end just like a render sequence for an animation but with the frames I decide to make. The purpose of this is to automate the process of creating a making of.

Answer 1

If you save the files to a new empty folder then each time you save the file you can append an integer to the file name that corresponds to the number of files in the directory.

folder = "c:\\tmp\\renders"
dir = dotNetClass "System.IO.Directory"
files = dir.GetFiles(folder)    
file = folder + "\\render" + files.count as String + ".bmp" 
render outputfile:file