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View Full Version : Best Way for LOD, destructable voxel Terrain



mokafolio
03-20-2009, 02:44 AM
Hi,

I am currently working on a really simple voxel Terrain based on MC algorithm. I am in the conceptual phase of how to best implement LOD and generally came to the conclusion that GeoMipMaps would be an easy way of doing it.

After thinking a little more though, I came to the conclusion that in terms I wanted to update a few GridPoints to deform the Terrain I would also have to update and recompute the Grids for the Different LOD states which would not be a good option for realtime I guess.

I also read a little bit about ROAM but didn't really hear to many good things about it.

So my question is pretty general:
What would be a good option to get LOD in a Voxel Terrain that should be updated in realtime at some parts?

Eric Lengyel
02-19-2011, 03:23 AM
I think you would find the Transvoxel Algorithm interesting. It was designed specifically for stitching together voxel terrain geomipmaps quickly and robustly.

http://www.terathon.com/voxels/

NeXEkho
02-19-2011, 03:57 AM
When I wrote Plastic Wreckoning, basically Minecraft before Minecraft, I split the tile grid into cells and mipmapped each one - solid blocks taking priority over transparent, transparent taking priority over invisible. Worked quite nicely and didn't interrupt gameplay on an Eee 701 when running in a background thread.

knackered
02-22-2011, 09:52 AM
oh now stop - you had me at plastic wreckoning. WTF?

NeXEkho
02-22-2011, 12:45 PM
College project. Nothing serious, a turn based strategy based on sentient toys left behind in the world when humans depart battling for eternity. A crossing of Minecraft, Hogs of War and Lego. It was never finished but largely worked. Just needed more than one person developing it :p