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July 27, 2012
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Mandelbulb 3D Z Start Tutorial by fraterchaos Mandelbulb 3D Z Start Tutorial by fraterchaos
A little tutorial about fixing "cut off" fractals in Mandelbulb 3D

just a little note, in some cases, unlike the tutorial, you may have to use an even smaller number for the Z Start... in my render "cages" I first changed the Z Start as in the tutorial, just a small amount, but that did not move it enough... I doubled the amount that I changed it, and still the tubes were cut off... I ended up going from something typical like -1.5 to something like -40 or -50 to fix it, so you may find you have to use lower and lower numbers until you finally reach the place you need.

Just remember, negative numbers move away, positive number move closer, and never forget -2 is SMALLER than -1 :)
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:iconiamthatstrange:
IAmThatStrange Featured By Owner Sep 29, 2014
This is the first time I've found any information on how to fix that.! (granted I probably Googled the wrong terms)  Thank you Hug 
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:iconfraterchaos:
fraterchaos Featured By Owner Sep 30, 2014  Hobbyist Digital Artist
I hope you find it useful... I believe HalTenny may have also done some tutorials about this and similar things... always worth checking out all his great tuts!
Reply
:iconiamthatstrange:
IAmThatStrange Featured By Owner Oct 1, 2014
Yes yours was of great help.  HalTenny has been too and his tutorials have been of great help.  And maybe it's just that I didn't know quite how to search for what I saw MB3D doing, it almost always turned up using the Cutting parameters. 

In any case I'm very happy to have found this, thanks again!
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:iconfraterchaos:
fraterchaos Featured By Owner Oct 1, 2014  Hobbyist Digital Artist
always my pleasure :)
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:iconjost1:
jost1 Featured By Owner Jan 30, 2014
I don't understand MB3D at all, but that's why I love it! :D I often use the Z function, when the fractal diappears when zooming in, but often it does unexpected things. I don't mind.
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:iconfraterchaos:
fraterchaos Featured By Owner Jan 30, 2014  Hobbyist Digital Artist
lol, I know what you mean, not knowing what will happen next is the best part!
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:iconjost1:
jost1 Featured By Owner Jan 31, 2014
That's it!
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:iconfraterchaos:
fraterchaos Featured By Owner Jan 31, 2014  Hobbyist Digital Artist
:D
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:iconphotocomix2:
PhotoComix2 Featured By Owner Oct 31, 2013
oh what a cool tip !
i often had to fight to avoid cutting i didn't know of a similar fix, thans
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:iconfraterchaos:
fraterchaos Featured By Owner Oct 31, 2013  Hobbyist Digital Artist
sometimes you can step backwards in the Navi, but that doesn't always work as well, other times stepping is better and Z Start doesn't work as well, but usually you can find one or the other will


most welcome!
Reply
:iconwillclark218:
willclark218 Featured By Owner Feb 4, 2013  Hobbyist Digital Artist
hah... funny but is one of the few I hadn't read.. but you do explain it well... will definitely utilize on those frustrating fractals that get those flat front facing edges as you zoom... nice job brother... and thanks.. :D
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:iconfraterchaos:
fraterchaos Featured By Owner Feb 4, 2013  Hobbyist Digital Artist
no problem, I hope it helps you out at some point!
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:iconwillclark218:
willclark218 Featured By Owner Feb 4, 2013  Hobbyist Digital Artist
most definitely will my friend... thank you...
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:iconfraterchaos:
fraterchaos Featured By Owner Feb 4, 2013  Hobbyist Digital Artist
always welcome :)
Reply
:iconlincava:
Lincava Featured By Owner Aug 17, 2012
Thank you for this tutorial!
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Aug 17, 2012  Hobbyist Digital Artist
very welcome, hope it helps!
Reply
:iconcoby01:
coby01 Featured By Owner Aug 6, 2012
thanks for sharing :hug:
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:iconfraterchaos:
fraterchaos Featured By Owner Aug 6, 2012  Hobbyist Digital Artist
very welcome :)
Reply
:iconmario837:
mario837 Featured By Owner Aug 5, 2012
Thank you Charles! Let's see if I can understand this mystery too. :)
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Aug 5, 2012  Hobbyist Digital Artist
you're very welcome, I hope it helps... although I would say you don't need it as badly as some people, I don't think I've seen anything cut off that way from you :)
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:iconmario837:
mario837 Featured By Owner Aug 6, 2012
How about this one [link] Of course I managed to put a nice red color in the cuts! ;)
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:iconfraterchaos:
fraterchaos Featured By Owner Aug 6, 2012  Hobbyist Digital Artist
yeah, you could possibly correct that with the Z Start thing... I am surprised I had never seen that one, nice work BTW
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:iconmario837:
mario837 Featured By Owner Aug 7, 2012
Thank you Charles!
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Aug 7, 2012  Hobbyist Digital Artist
very welcome :)
Reply
:icongraphiclia:
GraphicLia Featured By Owner Aug 5, 2012
Aunt Devi said it well! I could understand what was said. Rare for me. ;)
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:iconfraterchaos:
fraterchaos Featured By Owner Aug 5, 2012  Hobbyist Digital Artist
well, I had tried to explain it to Leonie once or twice in messages, and that seemed very confusing for her... so when I did the tutorial, I tried very hard to make things as clear as possible, because its a topic that is somewhat hard to grasp, especially because MB also has a "cutting" function that works in a similar way, easy to confuse them and think you can cure everything just with the cutting and that does not always work
Reply
:iconauntdevi:
auntDevi Featured By Owner Aug 3, 2012
Very good explanation. If I ever get around to doing MB again this will be helpful. Thanks for making this! :hug:
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:iconfraterchaos:
fraterchaos Featured By Owner Aug 3, 2012  Hobbyist Digital Artist
thanks and you are welcome :)
Reply
:iconskyzyk:
skyzyk Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
I have linked this here [link]
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
yes, I noticed that after I had posted my comment LOL

thanks for linking it my friend! Hope it helps someone :)
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:iconskyzyk:
skyzyk Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
My pleasure. :)
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
:D
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:icondsynegrafix:
DsyneGrafix Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
Well Done! Thanks for Submitting it to the group!
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
very welcome and thank you! came about because i was trying to explain the process to Leonie... imagine trying to explain it in messages... without pictures LOL
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:icondsynegrafix:
DsyneGrafix Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
Yea! LOL. I just don't enjoy typing that much! :rofl:
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
ah, the typing wasn't all that bad... doing it in Photoshop and trying to get the screen shots right was worse!
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:iconleoniezurakowsky:
LeonieZurakowsky Featured By Owner Jul 28, 2012   Digital Artist
That's very interesting! Says it just right! Thanks! :D
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 28, 2012  Hobbyist Digital Artist
well, I probably would not have done it without you encouraging me... so some credit goes to you too :)
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:iconleoniezurakowsky:
LeonieZurakowsky Featured By Owner Jul 28, 2012   Digital Artist
Well, that's good to hear! Thanks for saying that and I hope you write more! :D
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 28, 2012  Hobbyist Digital Artist
well, if anything occurs to me that I could write about. Most things I would like tutorials about are things I don't understand myself LOL
Reply
:iconleoniezurakowsky:
LeonieZurakowsky Featured By Owner Jul 29, 2012   Digital Artist
OK good idea!

And I know what you mean about wanting tuts on things I don't understand - like transparency! :D
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 29, 2012  Hobbyist Digital Artist
yeah I really wish there was one
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:iconleoniezurakowsky:
LeonieZurakowsky Featured By Owner Jul 30, 2012   Digital Artist
I can't decide if I should post my long rendering efforts even though the transparency is not what I wanted - and ask for help! :D
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Jul 30, 2012  Hobbyist Digital Artist
don't know... would have to see them to say if I like them...

its odd, when the trans first came out MarkJayBee mentioned using a very low absoption setting, he said either 0.005 or 0.05 (can't remember which it was) but one of the things I recently tried to tweak used a very high setting of 3... I have been playing with the settings and find I get more of a shiny look with higher numbers... but it doesn't really help much making things transparent...

Somebody who gets it really needs to do a tutorial... or I'ma start to scream!
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(1 Reply)
:iconlaxmijayaraj:
LaxmiJayaraj Featured By Owner Jul 28, 2012  Professional Digital Artist
:wow: Thank you very much!:D
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Jul 28, 2012  Hobbyist Digital Artist
always most welcome :)
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:icontobaal:
tobaal Featured By Owner Jul 28, 2012
sweet, i usually can fix it in the 3dnav, but this is a nice answer for when i can not.
Reply
:iconfraterchaos:
fraterchaos Featured By Owner Jul 28, 2012  Hobbyist Digital Artist
yes... using the Navi usually means zooming back out, which might not be at all what you want... I stumbled onto this from reading a tutorial someone else did, a much more general tutorial covering many other subjects... I was barely skimming and just saw something about changing Z Start, didn't even really pay attention... then I had a render that was all cut off so I gave Z Start a try and it worked! I've used it once or twice since to fix this sort of thing, usually works good, but can take some trial and error to get just the right setting
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:icontobaal:
tobaal Featured By Owner Jul 28, 2012
usually what i do is turn on the 'fixed zoom and steps' and change my step size to 1, then step back and zoom forward until it's almost right. finally i will turn off the 'fixed zoom and steps' and step forward once just one step (usually auto-adjusting me to just the right distance and no cutting through walls). on occasion though i can't get the lighting just right that way and i imagine that the zstart method will help with that.
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:iconfraterchaos:
fraterchaos Featured By Owner Jul 28, 2012  Hobbyist Digital Artist
I hope it does. I never use the zoom without fixed zoom... I don't like it to zoom when I am adjusting other positions and angles.

A lot of my older renders (especially boxy types) had weird holes, the boxes appearing cut open but empty inside, and I could never quite figure out a way to fix that, tried zooming out, but then I didn't have the right view... tried negative cutting on the Z coordinates, but that usually didn't work either, then I was skimming a tutorial that just mentioned using Z Start in a similar way, didn't even read it that closely, but the nest time I had a problem I remembered that and found the Z Start is about perfect for getting rid of that cut open look...
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