Time  Nick    Message
06:00 vapid   does minetest actually do occlusion culling?
06:00 vapid   i'm not sure if the wiki is outdated
08:59 sfan5   vapid: it would be terribly slow if it didn't
13:07 vapid   but how
13:07 vapid   i wanted to write a minecraft clone because i thought it would be an easy way to learn opengl
13:07 vapid   however it runs terrible
13:08 vapid   does minetest occlusion queries or something in software?
13:32 sfan5   software
13:35 Calinou you need a few things for it to run fast:
13:35 Calinou - greedy meshing (don't render faces of blocks that are in solid ground)
13:35 Calinou - frustum culling (don't render what's behind the player)
13:35 Calinou - occlusion culling (that said, it's not important if you don't have caves)
13:35 Calinou - LOD (for large viewing distances)
13:35 Calinou oh, and don't duplicate materials unnecessarily. A texture atlas is often used in more efficient implementations
13:35 Calinou (though Minetest doesn't use one anymore)
13:36 Calinou there are also tricks with VBOs (or was it VAOs?) to speed up rendering of special blocks like transparent blocks
13:36 Calinou https://0fps.net/ should give you more information on all this
13:37 vapid   thanks
13:38 vapid   already did the greedy meshing part
13:38 vapid   tried to do frustum culling too but it's still not working
13:39 vapid   and occlusion culling seems like the hard part