Title: Mandelbulb voxel representation @ 2000^3 voxels Post by: twinbee 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 (http://www.skytopia.com/project/fractal/new/mandelbulb-voxels-pow8-iter6.zip). I make no promises regarding the fragility or spikiness of this object, so handle with care ;) Title: Re: Mandelbulb voxel representation @ 2000^3 voxels Post by: cbuchner1 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. 2000ˆ3 bits) Christian Title: Re: Mandelbulb voxel representation @ 2000^3 voxels Post by: twinbee 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! :)
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... Title: Re: Mandelbulb voxel representation @ 2000^3 voxels Post by: twinbee 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. |