Rendering - Line/Actors distance culling

[Darkcrafter]

It's already been implemented in LZDoom and GZDoom has those cvars hardwired into console but they don't work. I'd like to get playing my huge maps with very same feature in GZDoom.

[grotski]

i'd like to see this as well.

similarly would also love if mappers were given a linedef flag to always cull sprites beyond it except when things are flagged otherwise for optimization by hand. probably harder to implement, one can dream though.