I really miss this feature in Unity3D. It is really cool to make your basic level with BSP Brushes and then add supports and everything else.
Is there any tool that allows BSP Brushing and then exporting it to a widely used 3D Format for importing into unity/exporting again via Milkshape?
But in the first place I would like Unity to have it.
Quark is able to do BSP creation and export into normal models I think. Ultimate Unwrap 3D can import map and bsp and export standard models
He meant to say “for Macs”. He didn’t say it, but he meant to… 
Well then the options go towards 0 to my knowledge.
You can potentially create BSPs with Quakes mapper tools, but to get them into any format outside of that you need converters and they are primarily to near exclusively Windows (UU3D as well as the other options)
Also as cool as BSP might sound, keep its crucial limitations in minds on the geometry you can create, you might be better off with something like CartographyShop or its successor, which has boolean operations, Quake - HL mapping tools alike texture mapping options etc but export to regular model formats.
I am aware of the limitations. But basic Levels work pretty good with it with stairs etc.
And thats what it is about. You need to add supports (Models) later, but you can prototype your level pretty quick.
In my case, I need to build a small City. That would be so easy and convinient with BSP Brushes and is a pain to do in Milkshape.
I only need basic houses, no fancy stuff. So I created a flat terrain and now I could just put up cubes with BSP and add some Sidewalks etc.
And esp. indoor levels are far more convinient to do with BSP.
It is just my opinion, but Unreal and Source Engine use it for a reason. Ofc it will be exported to another format, but nothing is hindering Unity from doing so, right? It would slow down beeing able to testdrive the level, but UDK needs for a complex level with all lightning not set to production around 2 minues on my machine. So that is acceptable.
Just use primitives. Brushes are outdated and not needed anymore.
Try out sketchup! Working in Sketchup is alot like working with a more advanced, modern form of BSP geometry. It’s the best thing for architectural modelling. Valve software even set it up so you could do your BSP geometry modelling in sketchup, then export it to Hammer for use in Source engine games.
BSPs are old technology. They will not be implemented into Unity.
There was someone working on a plugin for this…
http://forum.unity3d.com/threads/33446-BSP-style-geometry-creation-tool-with-lightmapping.
It seems that there never was a release though.
If you want to use BSP to rough things in before detailing out in a 3D package, use Unreal. Export as .FBX and when importing to Unity set the import scale to 0.02.
I like it because of the stair generators and such, plus with subtraction it’s really fast to create the shell of an environment.
Also, try Modo. It reminds me more of a level editor more than any of the other 3D packages.
Wow, I loved the Unreal editor growing up… I honestly didn’t know you could export to FBX now. I’m going to have to try that out!
What about UV information, does it get exported too? And how is mesh separated is it all whole 1 big mesh? In that case it would be really hard to put any different materials on it.
You can export it all as separate brushes if you want. Anyway, funny this is kind of moot because I’m using ProBuilder for Unity now. Those of you looking for “BSP style” should check it out.
Unity had BSP support? How long ago was this?
No, it’s an add on for Unity called ProBuilder.
http://www.sixbysevenstudio.com/wp-flexible/project/probuilder-for-unity-3d/
That is a new thing, this thread is probably older then it!
Here’s the Unity thread for ProBuilder: http://forum.unity3d.com/threads/151921-OFFICIAL-ProBuilder-Fast-Simple-Mesh-Building-Editing-and-Texturing-(BSP)
Wow, that looks amazing! I’m going to try that!
Does anyone have any reason that makes sense why this tool -ProBuilder has not been seen or posted before? Or is it new?
It’s been around in Beta since earlier this year, and seen a lot of traffic, but I think it’s only been released for a few months. Does look good, though. I think this is the original thread:
I’m just going to point out that BSP is a method for (as the name suggests) partitioning a space, such as a game level, and then storing information about that space into a BSP tree. The brush geometry you guys are referring to is called constructive solid geometry.