I have become a little bit familiar with the 3DS file format (based on this description, which is pretty good). However, it doesn’t seem to make any reference to the measurement units.
I have reason to think that they are variable, because if I display existing 3DS files together they may be at totally the wrong size relative to one another.
I have reason to think that there is a units setting stored in the file, because SketchUp Pro’s documentation says: " If SketchUp doesn’t detect a units value in the 3DS file, SketchUp imports the 3DS file in inches". https://help.sketchup.com/en/article/3000169-0
Does anyone happen to know whether/where (i.e. in which chunk) the units can be found in a 3DS file?