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Welcome to Fractal Forums > Fractal Software > Fractal Programs > Windows Fractal Software > Mandel Machine > version 1.3.12 zoom with mouse scroll wheel crash
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Author Topic: version 1.3.12 zoom with mouse scroll wheel crash  (Read 4371 times)
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istinn
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« on: December 15, 2014, 09:29:14 AM »
There is a program crash (disappearance) when zooming out (?) probably when you are using mouse scroll again before the first start of the new image rendering. version 1.3.12
Crash log attached.
* Mandel_Machine_x64_crashlog_mousescrollzoom.zip (13.58 KB - downloaded 162 times.)
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Botond Kósa
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« Reply #1 on: December 15, 2014, 09:47:59 AM »
Thanks. Could you also send the location you tried to render?
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istinn
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« Reply #2 on: December 15, 2014, 10:57:54 AM »
position.re=-0.779184428386832658349752785355607084882952083649051003257162219261640457454324216930841788178661102286461515313273940743373431692195859689529328666288348726349669046954601083891818526417561702097809222495498309433895023079860826031033417145192180590747498069355432374771604796485284698810949978968631914526691352983135978634465145294064043894782629967177600822338546767905090025510122340794425739712134
position.im=0.134521931001510286120813684588603666335056226681141920733608728374257483443853433614141018364256973672509266469006989255787433784562387564253649393982777543069023607791459697487816833507079808113210659105738760919053151075947570124050726399474432675845083691613131886264387238281100406589491856970763328268170778764893190227148240692700634682642881440508733979487622310871082025805866733636266566405675
position.magnification=1318.0994963267729
position.rotation=65.0
computation.iteration_limit=800000
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Dinkydau
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« Reply #3 on: December 15, 2014, 04:53:32 PM »
I think this is the same bug as I mentioned here:
http://www.fractalforums.com/mandel-machine/bug-scrolling-out-the-first-time-seems-to-always-scroll-in-once-first/msg79041/#msg79041
It also happens when zooming in to quickly, or aborting a render too early.
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Botond Kósa
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« Reply #4 on: December 16, 2014, 12:48:16 AM »
Thank you guys for your feedback. The crashes were indeed caused by the same bug. I made a new version available containing a fix.
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SeryZone
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Contemplate...
« Reply #5 on: January 01, 2015, 12:59:56 PM »
Look Attachment))) LOL  ; cheesy cheesy cheesy

* Whooo-hoooo!.jpg (187.47 KB, 640x360 - viewed 356 times.)
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Kalles Fraktaler
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« Reply #6 on: January 03, 2015, 02:59:54 PM »
Quote from: SeryZone on January 01, 2015, 12:59:56 PM
Look Attachment))) LOL  ; cheesy cheesy cheesy
Did you zoom out from a minibrot?
It should be possible to easily solve it by either use less or none series approximation or place the main reference somewhere else in the view?
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Botond Kósa
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« Reply #7 on: January 03, 2015, 09:53:08 PM »
Quote from: Kalles Fraktaler on January 03, 2015, 02:59:54 PM
Did you zoom out from a minibrot?
It should be possible to easily solve it by either use less or none series approximation or place the main reference somewhere else in the view?

This kind of error is produced exactly when the main reference is not perfectly in the center of the structure. Try to increase the OOM diff between terms parameter or decrease the number of Terms in approximation. Series approximation can also be limited directly by specifying the number of iterations to skip in Approximation limit.
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SeryZone
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« Reply #8 on: January 07, 2015, 11:49:02 AM »
Thanks! I always set 5 terms approx. This can reduce computation time too.
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Botond Kósa
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« Reply #9 on: January 08, 2015, 01:34:01 AM »
Quote from: SeryZone on January 07, 2015, 11:49:02 AM
Thanks! I always set 5 terms approx. This can reduce computation time too.

You should definitely use more terms for series approximation, unless you encounter unsolvable glitches. Using 9 terms instead of 5 already makes a big difference. The default value of 17 is a good compromise for most locations, but dense images with millions of iterations often benefit from more terms like 33 or 65.

See this post for speed comparisons with different SA terms.
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