By the way, adding simple support for variadic arg lists on registered functions can probably be done quite easily.

I need some simple robots and vehicles. Any 3d modeler is welcome.

This could be thought of a simple function contract. There are several languages that support function contracts as can be seen in this wikipedia article . Although C++ doesn't as far I know there is a proposal for it, so it might be available in a future version.

I've included your suggestion in my…

I am curious, if you use Krita for your game development.

Is there any plugin you would like to see to make your pipeline faster/easier/smoother/etc? 

Background. I am a starting Plugin Developer for Krita ? Testing the waters.