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I am currently developing a Flame fractal program in Java. The basic algorithm is implemented as in Apophysis, and I am currently working a bit on the GUI.
Since it is Java, changes can be made quite easily, so i am curious about what features fractal artists are interested in.

I already have:
* Gamma, Brighness, Vibrancy, and of course a dial for quality (that is number of iterations).
* A lot of standard variations.
* Same variation can be used multiple times in an XForm, with different parameters.
* Posttransform (which will be called a (specified) fixed number of times, not just once)

* A file format that can easily be edited by hand.
** Simple scripting can be done by randomly choosing a number in an interval, instead of a specific number:
Example -scale frand(0.2 , 1.2 ) scales he current transform a random amount between 0.2 and 1.2.
* By calling such script n times, one can create a batch of size n.


What of the following features are most important?
* Linear-3d and 3d variations.
* Advanced scripting capabilities.
* Batch generating from within the program.
* Transparent background.
* Graphic interface for the triangles
* Compatibility with Apophysis file format.
* Camera

* Other features I have not mentioned.