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Handling Large Worlds with LargeVolume
http://www.volumesoffun.com/phpBB3/viewtopic.php?f=14&t=320		 Page 1 of 1
Author:  Illidan [ Sun Jan 22, 2012 6:09 pm ]
Post subject:  Handling Large Worlds with LargeVolume
Hi,
I'm using LargeVolume in my project and it's working very good. Today I tried loading a lot of voxels and I've seen the ram skyrocketting.

I only need to keep in memory only a small area around the player, while new chunks are streamed form the server when needed, and distant ones can be deleted as they're no longer needed. How would I go about doing this?

I suppose that if I only need, say, a 5-blocks (composed of 32 voxels per side) in every direction, I can call setMaxNumberOfBlocksInMemory with a value of 10*10*10, am I right?

I think setting a "valid region" every time the player moves would be the best choice, thus deleting all the unneeded voxels outside of that region. Is that doable or I have to use the data Required/Overflow handlers?

Or maybe I'm missing something and there's a better way of achieving what I want?

Thanks in advance for any answer :)
Author:  Illidan [ Mon Jan 23, 2012 5:05 pm ]
Post subject:  Re: Handling Large Worlds with LargeVolume
Obviously I've missed the flush function :roll: Everything works fine now!

However my question from the previous post still stands:
If I set the maximum numbers of blocks in memory to 10*10*10, will PolyVox retain a maximum number of 1000 32x32x32 blocks in memory?

Thanks in advance.
Author:  ker [ Mon Jan 23, 2012 9:49 pm ]
Post subject:  Re: Handling Large Worlds with LargeVolume
in short. yes.
but it discards the oldest blocks, so that might not be your desired behavior.

i created the largevolume... but i am not always happy with the way it works.
everyone expects something different from it and it cant be completely universal.

maybe there should be many largevolumes.

for your case i advise only using prefetch and the callbacks. always call prefetch on your current active region.
give yourself a little buffer, too. if you want 10x10x10 use 12x12x12 max loaded blocks instead, but use your 10x10x10 region for extraction and prefetch calls.
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