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Welcome to Fractal Forums > Fractal Software > 3D Fractal Generation > Mandelbulb 3d > Internal render
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Author Topic: Internal render  (Read 1253 times)
Description: HELP!.
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GrahamSym
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« on: November 06, 2011, 09:02:37 AM »
Cant get the internal render to work, any suggestions?.
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bib
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« Reply #1 on: November 06, 2011, 09:33:50 AM »
Cut across the z=0 plane
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DarkBeam
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« Reply #2 on: November 06, 2011, 10:43:40 AM »
See also;

http://lucagn.deviantart.com/art/Inside-Amazing-Box-IFS-tut-266100434

 wink cheesy
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bib
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« Reply #3 on: November 06, 2011, 11:28:03 AM »
Quote from: DarkBeam on November 06, 2011, 10:43:40 AM
See also;

http://lucagn.deviantart.com/art/Inside-Amazing-Box-IFS-tut-266100434

 wink cheesy

Yeah, but I think he meant the "true" new inside feature.
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DarkBeam
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Fragments of the fractal -like the tip of it
« Reply #4 on: November 06, 2011, 11:49:48 AM »
I know, but my tut shows how to use the navi, when you enable fixed steps sooner or later you will see the "hole" inside - basically the same technique smiley
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Jesse
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« Reply #5 on: November 06, 2011, 05:14:14 PM »
Yep, if you are really inside you have to use the fixed steps option in the navi.. forgot to mention it in the text-docu.
Up to a cutting plane the default mode can also be used.
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GrahamSym
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« Reply #6 on: November 07, 2011, 08:25:53 AM »
Got it!...   
Being new to M3D Im still learning. Thanks guys for your help.
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DarkBeam
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Fragments of the fractal -like the tip of it
« Reply #7 on: November 07, 2011, 01:28:03 PM »
Made this combining inside and outside views of the same fractal http://lucagn.deviantart.com/art/Spider-folding-in-and-out-267714423

Great technique imo! cheesy
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« Reply #8 on: November 08, 2011, 10:37:19 PM »
Quote from: Jesse on November 06, 2011, 05:14:14 PM
Yep, if you are really inside you have to use the fixed steps option in the navi.. forgot to mention it in the text-docu.
Up to a cutting plane the default mode can also be used.

Uh, how does this inside rendering work? Is it done using fixed step size (perhaps with binary search)? Or can the numerical gradient methods be adapted to inside rendering?
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Jesse
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« Reply #9 on: November 08, 2011, 11:18:04 PM »
Quote from: Syntopia on November 08, 2011, 10:37:19 PM

Uh, how does this inside rendering work? Is it done using fixed step size (perhaps with binary search)? Or can the numerical gradient methods be adapted to inside rendering?

i used only fixed step sizes until it reaches the outside, then a normal binary search for a certain distance (also on the outside).

Very doubtful if a general method can be obtained, for some formulas it might be possible.

Maybe the gradient method could be extended somehow... like doing it with several iteration depth and some smart calculations, just don't know.  wink
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