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September 14, 2011
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Mandelbulb 3D ~ Mastering 3D Navi

Journal Entry: Wed Sep 14, 2011, 9:39 AM
Bet that got your attention ~  

Well I'm sorry to suck you in by that devious title! I haven't mastered anything, but I did finally put together all the useful advice given in comments from a recent journal (haltenny.deviantart.com/journa… I wrote on navigating with the 3D Navi tool. The funny thing is I brought up my solution to navigating at Fractal Forums back in May and FractKali responded with a much better solution than mine, and I either didn't read it thoroughly or simply didn't understand it. So I want to make it clear that I am simply passing along advice from the comments I've received here and at Fractal Forums. I just want to organize and better explain the procedure in case any have missed some of the comments.

Disclaimer ~  

I almost always offer this disclaimer. I readily claim that I am far from an expert with MB3D. If beaten over the head with information enough times, it eventually seeps thorough the cracks in my skull and worms it's way into my brain pan. Proof that I am not an expert is obvious by the convoluted and tedious solution to navigating I gave in the past journal. The following solution is much more elegant and just simple.

I'm stuck ~  

So here we are once again, stuck in a piece. You have navigated to a point with the 3D Nav tool and are stuck. Sometimes you can still move left or right or up or down to a certain extent, but not always. And now you find that you can't move forward (zoom or walk in) or backward (zoom or walk out). At this point, most everyone knows you can expand the nav box by clicking the little arrow located in the bottom right corner of the 3d nav window. When you do this more options become available, one of the most important (concerning our problem) being, 'fixed zoom and steps'. This has been beaten into our heads on many occasions so I'm just as sure that many know of this as well.

So if we select this box (click on it and a check mark will appear) it will allow us to once again move freely about in the nav window.  (I always reload my parameters into the nav window after selecting the 'fixed zoom and steps' box, just in case I've made some changes I've forgotten about.) You can now walk in our out to your hearts content. However it does raise several other issues. The reason we are stuck in the first place is because we are either inside a structure or running up against a structure when we tried to move in or out. With the 'fixed zoom and steps' box selected, when you 'walk' you actually are cutting your way into or out of the structures that have you trapped. You may not want to do this as it will spoil your current view in your piece.

Here's the part I didn't understand or realize until a week or so ago. I can be thick at times, and I noticed on occasion an extra set of zoom controls sometimes appear in the 3d nav window directly below and to the left of the image, but I didn't know why they were sometime there, and sometimes were not there. Well I rarely used the 'fixed zoom and steps' function so it didn't occur to me that selecting 'fixed zoom and steps' is what triggers the extra zoom controls. Below is an image of the nav controls. Circled in red is the control that expands the nav box so more options are available. Circled in blue is the 'fixed zoom and steps' box which you want to select if you are stuck. Circled in green are the extra zoom buttons that appear if the 'fixed zoom and steps' box is selected.




And here is the key ~  

If you are stuck, do this:
1) Select the 'fixed zoom and steps' box by clicking on it.
If you want to ONLY zoom in or out, do the following:
2) Use the extra zoom buttons to navigate in or out, (buttons circled in green) NOT THE WALK CONTROLS!
If you want to cut further into your piece:
3) Use the walk buttons to cut into your piece.

Here's some more info to absorb. If you select the 'fixed zoom and steps' and then try to zoom in with the extra zoom buttons and it doesn't work, then you are probably already zoomed way in. In this case you can do one of two things. You can still cut your way in by using the walk controls, but obviously this changes the looks of your piece. If you still want to zoom in without changing your image or cutting, first ZOOM OUT with the extra zoom buttons, then WALK in by cutting until you get back to the view you had before zooming out. Once you get to that point, then you can zoom in with the extra zoom buttons and with no cutting.

Another thing that many are aware of is that if your image disappears while you are zooming in, then you can raise the 'far plane' setting' at the lower left corner of the nav window. Some people don't realize you can use this in reverse as well. (Obviously) If the background of your image is too busy looking or you can't seem to make the background fade or fog up by using the depth slide in the ambient lighting, then you can lower the far plane setting in the nav window.

And once again I want to give credit to all those who commented and gave tips in the previous Journal. By looking over those comments, I hope I've clarified as well as simplified using the nav window to a certain extent! booyah!

  • Listening to: Tweety birds
  • Reading: Dark Object (UFO book)
  • Watching: Suits
  • Playing: Don't play well with others
  • Eating: Candy bar
  • Drinking: Cold coffee
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:iconundead-academy:
Undead-Academy Dec 12, 2013  Hobbyist Digital Artist
Very interesting but I now that you mentioned the fix zoom , I have a question . Sometimes I would zoom in to get something but only to lose it , I try everything but to no avail the render is gone so would clicking on the fix zoom bring it back ? Sorry for the dumb question .
Reply
:iconhaltenny:
No, just clicking the fixed zoom and steps will not bring it back. I plan on writing a more comprehensive guide for the navi window soon. The most important thing I do if I see something nice I want to zoom in on is save it to the main window before zooming just in case it vanishes. But normally, if an image vanishes when you zoom in, you can bring it back by doing one of two things. Raise the far plane setting to something like 200 or even 2000. If that doesn't work, make sure fixed zoom and steps is selected and then zoom out with the zoom buttons that appear, (circled in green above, the bottom button zooms out). The numbers show the zoom value. Most of the time, even if the numbers have turned red, you can still zoom back out and get your image back. If there are numbers mixed with letters, that is a deep zoom and you might have to hold the button down for 5 or 10 seconds or more to get zoomed back out. If the red letters 'inf' show up, as far as I know you are screwed and can not bring that image back. Hope this helps Patty, and no, not a dumb question! :) The navi window is touchy sometimes and there are a handful of tricks that help tame it...
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:iconundead-academy:
Undead-Academy Dec 12, 2013  Hobbyist Digital Artist
Oh awesome thank you very much , I  have lost many good things that way and now I can try other things to try and save it . Thank you very much , can't wait to see more writings about the Navi window :) I think that would help others as well :)
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:iconf--l--a--r--k:
f--l--A--r--k Jan 5, 2012  Professional Digital Artist
Thank you very much for the detailed explanations!
Reply
:iconhaltenny:
Welcome Stan!
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:iconmothersheart:
MothersHeart Sep 20, 2011  Hobbyist General Artist
I must book mark this ... Thanks for this share! :dance:
Reply
:iconhaltenny:
You're welcome!
Reply
:icondsynegrafix:
DsyneGrafix Sep 14, 2011  Hobbyist Digital Artist
Excellent Stuff! Thanks for sharing!!!
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:icongypsyh:
GypsyH Sep 14, 2011  Hobbyist Digital Artist
:hug: Thank you Hal!!!!
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