Build Geometry vs Build Lighting Only
I read the docs but they dont really go into the details as to what is covered in a Geo and Lighting Build. I understand the basics between these two builds. If you add new meshes, you build geo and if you make changes to the lights, you build lighting only. My question is can you just build lighting only if you add lights to the level or do you need to build geo also? Likewise, if you import new textures, create new materials, and assign materials to objects, can you perform just a Build Light Only or do you also need to Build Geo?
asked Jul 13 '16 at 07:13 PM in Rendering
The build Geometry option is referring to BSP and building that. It's really not an option you have to worry about unless you've disabled "Update BSP Automatically" in the Editor Preferences > Level Editor > Miscellaneous.
If you've disabled this, then BSP/Geometry will not update automatically and you will need to use Build Geometry to make it appear. Other than that there is no need to worry about this option. 99% of the time it's fine just to hit Build and let it do all the things. If you're using HLOD or Precomputed Visibility Volumes there may be an additional added time, but if you're not it's nothing to worry about then.
I hope this helps.
answered Jul 13 '16 at 07:25 PM
Tim Hobson ♦♦ STAFF
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