Collision Mesh/Rendered Poligon substraction

@AndrewGarrison I see something interesting. There is a KSP mod actually do this. https://forum.kerbalspaceprogram.com/index.php?/topic/185353-17x-moduledepthmask-portable-holes-for-your-parts/

@AndrewGarrison Don't worry Jundroo is still awsome!

@AndrewGarrison Ouch :( Thanks for reply!

@mjdfx150529 is right and this would be a nightmare to implement. I don't normally reject suggestions because of technical difficulties, but this one is particularly difficult.

@mjdfx150529 If you can add, you can deduct. Current game calculates part intersection anyway so I guess it's not impossible.

This will be so difficult to implement though