What is it?
HammUEr is a (currently Windows only) plugin that lets you build your levels with Valve’s [FONT=Lucida Console]Hammer Source map editor (VMF), [FONT=Lucida Console]Doom3’s DoomEdit (MAP/PROC) or a [FONT=Lucida Console]Quake-based map editor like Radiant, Jackhammer or Trenchbroom (MAP). With just a few simple clicks, you can have them imported into your Unreal Engine project as a collection of meshes placed in your scene the way you want, where you want. Want to change something? Make your edits in your favourite tool, then save, re-import, and you’re done.
During the importing process you can assign materials already in your project to the original material names, or if you have the source images - (TGA/BMP/PNG/JPG)/VTF&VMT/MTR(D3)/SHADER(Q3)/WAD(Quake1 & Halflife)/WAL(Quake 2) - you can import them into UE as material instances based on a template material of your choice, and let HammUEr automatically find and assign the right ones. Don’t want certain materials to show? Mark them no-draw and HammUEr will automatically not build polygons for them!
Want to start building a level in Hammer with your UE materials for true WYSIWYG level editing? HammUEr can do that by exporting your UE material textures to VMT/VTF combos for easy use in Hammer with one click.
Have Source models you created for your maps? HammUEr can bring them into Unreal Engine for you and places them where they belong.
Use overlays and decals? HammUEr will also import those for you.
I’m not even close to done adding features, so stay tuned.
For those who don’t know yet, ProBuilder is a tool for Unity that lets you create and edit meshes (brushes) in a similar fashion to Hammer and a UE4 version is already in works. It would be a whole lot easier to do any sort of edits within UE and export the VMF than to edit in Hammer and reimport for any minor tweaks. Having a way to export the imported VMF back to VMF would be fantastic for this use.