The above sculpt is from my work in progress Master of the Moondog project, but this process is pretty basic and will work with any ZBrush sculpture. To make it happen just do the following:
1) Setup your Movie palette in ZBrush with Spin Frames = 30, Spin Cycles = 1, FPS = 30, and turn off the cursor overlay images and only capture the document, something like this:
2) Export your movie in a lossless format for the best possible quality, I'm working on OSX so I picked the below settings, the Windows version may be slightly different:
3) Use a batch encoder to convert your movie file to 30 still images, I chose Apple's Compressor which can be purchased from the Apple App Store for $50, I'm sure there are loads of other options and freeware available to perform this same task. For those interested my Compressor settings are as follows - basically just picking the TIFF Images Sequence option, switching file type to JPEG, and tweaking the cropping to fit better on this blog:
Pretty cool, this will definitely come in handy for future renders, I may even turn his script into plugin to make it a bit easier to work with. Viva la JQuery!