koobas.hobune.stream
Cut a hole in geometry similar to UDK/bsp?
Unity is great but one very useful feature would be the ability to cut a hole into basic geometry for grayboxing, similar to how it works in UDK with BSP geometry to quickly carve into an existing level while designing.
Is there a way to do this in Unity without coding? Again, similar to UDK.
Look up Constructive Solid Geometry (CSG). It's what most of those editors use. I don't really know the Unreal editor (just a bit the old UnrealEd from the first Unreal ^^), but i know that Valves Hammer editor (formally Worldcraft) partially uses CSG brushes for some features.
Here are some CSG approaches in Unity:
That said i should add that CSG is not as easy to calculate as it is to work with. $$anonymous$$ost such libraries have their limitations and can even produce errors in the geometry.
You might be interested in https://www.assetstore.unity3d.com/en/#!/content/69542 which is an UDK like (brush based CSG) level design tool. There's an evaluation version available here https://logicalerror.github.io/evaluate.html
