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Author Topic: Mandelbulb voxel representation @ 2000^3 voxels  (Read 2027 times)
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twinbee
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« on: November 28, 2009, 10:30:35 PM »

For anyone else who's interested in making plastic/metal/carbon buckyball models, and needs a voxel representation, I thought I'd upload the 2000x2000x2000 voxel data for the power 8 Mandelbulb (6 iterations, 'cosine' variation).

The 28 meg zip file below consists of two thousand 1-bit (black & white) PNG files (each @ 2000x2000 pixels).

Download.

I make no promises regarding the fragility or spikiness of this object, so handle with care wink
« Last Edit: November 28, 2009, 10:34:56 PM by twinbee » Logged
cbuchner1
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« Reply #1 on: November 28, 2009, 11:04:43 PM »


wow, this certainly compresses well. How many iterations were used in generating this set?

Have you thought about using a non-graphical representation, say, 1 bit per voxel, scanned in x,y,z order?
This would lead to a minimal uncompressed file size (i.e. 2000ł3 bits)

Christian
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twinbee
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« Reply #2 on: November 28, 2009, 11:33:10 PM »

Yes, a single file voxel cube array would compress even better (because the info is compressed all around). I'm guessing around 3 megabyte even. Uncompressed though and we're talking 1 GB! smiley

I used PNGs mainly to make things more manageable (and because it's a popular format).

It uses 6 iterations. Maybe 5 is more sensible...
« Last Edit: November 28, 2009, 11:40:32 PM by twinbee » Logged
twinbee
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« Reply #3 on: November 28, 2009, 11:56:27 PM »

Oh just to add, if I understand correctly, I think a 6-sided depth map would be an interesting approach, and certainly good in terms of file size. Six 12-bit colour PNGs worth it would be, though the inside and possibly certain details on the outside won't be captured.
« Last Edit: November 28, 2009, 11:59:30 PM by twinbee » Logged
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