Evak, that's the beauty of oct-trees, it creates cubic regions.
It's not occlusion, it's quite literally deviding the map up into cubic regions, in a tree like hireachy.
Is node 1 visible? Then all it's children nodes are. If not? None of it's children are.
Oct-tree is a beautiful process...how it can take any abstract map and make sensible portals/zones.
Occlusion isn't something I'd do for every chunk..what you would do is if a chunk peaks beyond a certain poly threashold, check if it's visible, even if it's bounding box is within frustum.
It's not occlusion, it's quite literally deviding the map up into cubic regions, in a tree like hireachy.
Is node 1 visible? Then all it's children nodes are. If not? None of it's children are.
Oct-tree is a beautiful process...how it can take any abstract map and make sensible portals/zones.
Occlusion isn't something I'd do for every chunk..what you would do is if a chunk peaks beyond a certain poly threashold, check if it's visible, even if it's bounding box is within frustum.