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I have uploaded a small update, 1.3.15. Two bugs were fixed, and a new experimental feature was added: the image can be zoomed into the pattern centroid by clicking a button in the upper toolbar. Unlike the Find minibrot feature of KFR, it's not automated yet as it's still a bit unreliable, but it can still speed up exploring significantly. The zoom increase can be set in the Settings toolbox under Zoom steps by double click.

Thanks for this feature and my apologies for bumping the topic. I just downloaded and updated Mandel machine today. Currently I typically get abut 5 zooms per click by drawing tiny rectangles at really deep levels and I only need to wait for the first orbit to complete before I zoom another frame. The find centroid option is pretty useful for situation where I have say some large number of congruent objects lined up. Because the orbits are taking upwards of 50 seconds at extremely deep zoom levels and there's often several orbits before the image is complete, I actually have to wait longer by using the "find centroid" option than to just zoom normally. What I would love to have is an automatic "find centroid" feature so i can simply leave the computer and do other things while it slowly advances deeper into the set. Since I can usually predict where the next fork in the road or complex formation will be, it would also be nice to stop searching beyond a certain depth. With perturbation, rendering images, even up to 530 megapixels does not take weeks or months like it used to, but reaching a target formation often requires many long hours of manually advancing the fractal frame. This tends to be a rather tedious process and I would much rather spend my time doing other things. As it is right now, a simple script to simulate left mouse clicks while the pointer hovers over the button will suffice. Would it be that difficult to to an automated advance on the "find the centroid" option until the user cancels? This would be of great help to me, thanks.

Kalles Fraktaler has this new Newton-Raphson zooming method for finding minibrots, that I would love to be able to use in Mandel Machine. Sadly it only works with plain Mandelbrot (any order) and not the abs() fractals.

Well, that's weird. Peazip can read your .7z files, but IZArc can't. This now looks like some sort of a compatibility problem, though all the unarchivers for a given format are supposed to be speaking exactly the same language ...

In any event, there's now less urgency, though this could cause trouble for other users.