Oh, is there any chance I could get my installed h264 codec directly into the list of codecs to choose from?
I use Intel IYUV codec, it doesn't seem to compress at all, since all movies get exact the same size and are proportional to the resolution, which I think is good. I then use Microsoft MovieMaker to assemble the movies and then compression is applied.
More questions:
-is it possible to reverse the direction of colour-cycling? adding a "-" doesn't do the trick.
Yes, it should easy to implement, I will have a look

-is there any trick to achieve smoother colours? My goal would be to eliminate the visible transition-lines between the different colours. I already expanded a palette of 25 base-colours to the max of 1024 but it doesn't seem to make that much a difference.
Try add a value in "Divide iteration" larger than 1.
-i don't understand the difference between "frame size" and "movie size" in the Movie Maker - can anyone explain what to choose there (I'd like to make 1920*1080 movies)
But you can only edit the "Movie size" field. The "Frame size" is the size of the key-frames, i.e. the images rendered by KF.
in the last frames my zooms become increasingly "pixely" does this have to do with it?
The last frames get "pixely" due to the density of the pattern around deep minibrots, and anti-alias is needed to render them properly. If you replace the last key-frames with larger kfb-images these frames will be squeezed and anti-alias effect will be achieved.
Yes I have tested it. But I don't know, I feel that the pertubation makes the values of z (in z[n+1]=z^2+c) get instable when the bailout value is reached and the result doesn't get as good as I want it. Before pertubation I was applying a metallic effect by using the values after bailout, but I couldn't get that proper either. Maybe others doing pertubation, hapf, claude, Pauldebrot, have tested this and can give some insights?
edit2:
another question..

kf just crashed while rendering zoom out pics for a movie. it's only been working 3 hours, but yet it would be great if I could continue where it crashed - but that doesn't seem to work. or I don't know how to do this.
It's very easy!
Go to the next zoom position and start rendering the zoom sequence again.
Ok, I will explain in detail:
First, make sure you saved the location where the zoom sequence ends.
Let's say you have a zoom that ends at 1.27e200, but in the Location dialog, the zoom level is specified with much more decimals.
Let's say your last frame is 90, so the name of the last file is something like 00090_2.05e173.kfb. Then take the end zoom level, from the Zoom field in the Location dialog, and divide it with 2^90. I have made a calculator that can handle very large numbers which you can use if you want,
http://biphome.spray.se/karl.runmo/calc.htm1.27e200 / 2^90 = 1.02589783e173
Paste in the result in the zoom field of the Location dialog.
Start the zoom sequence render again. KF will browse the files in the folder and start counting on 91.
I hope I was able to explain this in an understandable way...
