This controversial and much-abused method for speeding up fractal animation rendering has been another area of active work at HPDZ, and it the subject of a Technical article on the web site.
The past month has seen some significant improvements in this technique that allow optimal master frame images to be identified for complex animations with simultaneous panning and zooming, as well as reverse zooming (i.e. zoom-out). This new phase of progress on this technique is still being finalized for production work, but it has huge potential to allow enormous speed-up of very complex "touring" type animations like SecantAnimation1.
For those who have a philosophical objection to this approach, the assurance that HPDZ will always maintain signal processing integrity by never undersampling images when this method is used bears repeating. In a deep information-theoretic sense, what we are doing with frame interpolation, when done correctly, yields the same usable video information as frame-by-frame rendering, at a fraction of the computational time.
The next project in the pipeline will utilize this new and improved frame interpolation technology.