Re:How Voxels Became ‘The Next Big Thing’
by AstralStorm on Monday May 28, 2018 @03:37AM
(#17171088)
You need a way to anizotrophpic filter the voxels. This means the mipmap should be fully indexable. That is n^3 * m memory for mipmap and n^4 filtering...
Isotopic filtering is easier, just 3*n. However, it will make surfaces look... unreal, as if physics didn't form them, at times.
You cannot wing the quality as easily in 3D though. Continuity is paramount as is some degree of smoothness. Ringing is unacceptable.
Re:How Voxels Became ‘The Next Big Thing’
by acou_nPlusOne_t on Monday May 28, 2018 @01:43AM
(#17170765)
You are right, its been quite a while since i have dealt with the cube-engine.
The Level of detail mechanism just adds a constant to the formula- basically speeding up the n^3 voxel growth as the player explores the world in detail and distance at the same time in the worst case.
Looking at a ants-mandibles-mikro-biota, while observing a planet near the horizon.
A hierarchical level-of-detail scheme (e.g. the one used in Sauerbraten) is still only n^3 in the worst case. If you store one full-resolution copy of your world, and then a copy with 1/2 the resolution, then 1/4 the resolution and so on, you get a geometric series that converted to only a constant-factor overhead.