Reduce lag in caves

[ikabod-kee]

Scenes like this should not draw 2M faces
Caves have become the new laggiest area in the game (swamps have been dethroned at last)

[ikabod-kee]

This is at Render Distance 7 btw

[IntegratedQuantum]

It does not draw 2 million faces (the number is before occlusion culling)
And your frame time is 1.3 ms, I don't know what your problem is.

[IntegratedQuantum]

Let's reopen this for now, so I don't forget to look into it: https://discord.com/channels/443805812390100992/485498631156138005/1347247434140745841

[IntegratedQuantum]

Alright, so I thought about this some more, and I think one possible way would be to render and occlusion cull the world in multiple steps:

for(0..renderDistance) |i| {

• do occlusion culling for chunks at distance i
• render chunks at distance i

}

however, since this is quite involved, I would prefer doing this after #823