The All New FractalForums is now in Public Beta Testing! Visit FractalForums.org and check it out!
|
|
Delta DE - testing the limits | ||||||
Previous Image | Next Image | ||||||
Description: Created using Ultrafractal. I decided to test the delta DE method even further and figured that the most "regular" object that would show errors most obviously would be a high magnification of the quaternionic Mandy for z^2+c - so here it is rendered at 640*480 exactly as you see it (it's a png). Magnification: *2.1582312 e12 DE "solid" value: 1 e-13 delta distance: 1.25 e-14 As you can see it's obviously stretching the limits of "double" accuracy - in particular the real axis is scalloped and the rim of the "horn" is markedly uneven. Anyone with a fast PC and some spare time is invited to have a go at rendering this one with UF's extended precision set to "always" just to compare the result with this render - if you're interested let me know and I'll send you the formula and the parameter file (though be warned on my 3GHz P4HT it took over an hour with extended precision set to "never"). Stats: Total Favorities: 0 View Who Favorited Filesize: 410.19kB Height: 480 Width: 640 Keywords: mandy quaternion deep zoom Posted by: David Makin October 22, 2009, 01:17:45 AM Rating: Has not been rated yet. Image Linking Codes
|
||||||
0 Members and 1 Guest are viewing this picture. | ||||||
Related Images | ||||||
|
|
Comments (0) |
Powered by SMF Gallery Pro