Hi yophie, I believe that what you are describing is a feature of KeyShot - when it does an import it scales and moves the imported objects to what it decides is a better default size. The problem with that though is that with each object being scaled based on its bounding size if you do the import in separate stages they will be out of sync.

In order to solve that you will need to manipulate the import settings in KeyShot and turn off the automatic scaling and positioning functions. When you do the import you should be seeing a dialog pop up in KeyShot something like the one shown here: https://www.keyshot.com/keyshot4/manual/importing/importing.html

Looks like you will probably need to turn off "Location: Center geometry" and "Location: Snap to ground" and instead have "Location: Keep Original" checked instead, and then probably under Size you will need to switch it from "Size: Automatic" to "Size: Keep Original".

So anyway in this case it's all something that KeyShot is doing during the import, so you will need to change those settings in KeyShot in order to change that behavior.

The other option is that you could do just one export out from MoI rather than 2 separate exports and just mark the pieces you want to have as emitters with their own distinct Style assignment (like set Style = Green for those, and not assign style = green to anything else), then edit that material in KeyShot.

Hope this helps!

- Michael