Logo by blob - Contribute your own Logo!

END OF AN ERA, FRACTALFORUMS.COM IS CONTINUED ON FRACTALFORUMS.ORG

it was a great time but no longer maintainable by c.Kleinhuis contact him for any data retrieval,
thanks and see you perhaps in 10 years again

this forum will stay online for reference
News: Visit the official fractalforums.com Youtube Channel
 
*
Welcome, Guest. Please login or register. September 23, 2018, 03:19:13 PM


Login with username, password and session length


The All New FractalForums is now in Public Beta Testing! Visit FractalForums.org and check it out!


Pages: 1 [2]   Go Down
  Print  
Share this topic on DiggShare this topic on FacebookShare this topic on GoogleShare this topic on RedditShare this topic on StumbleUponShare this topic on Twitter
Author Topic: Mandelbulb3d v1.7.8  (Read 8187 times)
0 Members and 1 Guest are viewing this topic.
DarkBeam
Global Moderator
Fractal Senior
******
Posts: 2512


Fragments of the fractal -like the tip of it


« Reply #15 on: February 18, 2012, 05:30:01 PM »

The problem is easily solvable! Like I did for other troubleful surfaces, I simply cut off  cheesy

1. I calculate the de
2. I calcuate R - 3*R1
3. I calcuate abs(z) - 3*R1

DE = Min(de1,de2,de3)

(That's a cylindrical scissor baby grin )

Now it's 3x faster and more stable A Beer Cup


* limpet.JPG (18.21 KB, 436x340 - viewed 551 times.)
« Last Edit: February 18, 2012, 05:41:53 PM by DarkBeam » Logged

No sweat, guardian of wisdom!
Jesse
Download Section
Fractal Schemer
*
Posts: 1013


« Reply #16 on: February 18, 2012, 09:53:42 PM »

  Repeating Zooming Self-Silimilar Thumb Up, by Craig
Logged
JiemeK
Forums Newbie
*
Posts: 2


« Reply #17 on: February 20, 2012, 06:22:10 PM »

Hello
Concerns Mandelbulb general and also V1.7.8
First sorry for my poor english …and my low knowledge level in fractal’s matter.
I have some problems of understanding differents points of the Jesse’s  « Read me » and I do not know where I may show these problems on the Fractal Forums, so I try here.

1 – Formulas
I do not understand what is exactly done :
1°) under the option « Alternate »(used in turns ?) what exactly happens ? I understand the sequence of formulas but no the aggregation of each partial result.
2°) under the option « Interpolate », which variable is interpolate ? DE ? and how ?
3°) under the option « DE Combinate », for me, there is no making head or tail for it.
Replaced the average DE combinate method with an inverting and max comb.
What is precisely a combination ? How works a « inverting and max comb » ?
Options for inside rendering (beta) and "min" DEcombinate with overlap huh?
S1 = minimum function with a linear overlap function ?
S2 = like S1, nonlinear function, more smooth overlap ?
4°) dIFs
Before V1.7.7 , mixing of dIFs with other formulas doesn’t work (OK) but after
  « Added DEcombinate methods to mix escapetime formulas with dIFS »
how can I know which formulas are « escapetime » in the lot of proposed formulas ?
2 - Lighting /Background Picture »
« Fit left+right borders, with . . . » : Independently of the relative sizes of the main image and the background picture, I have no effect . . .  or I don’t understand the wording.
3 – Save Image/png.par
« Save text parameters in PNG.file, if selected »
Where is the resulting file ?
Thanks in advance

Jesse : Congratulations for such a detailed and useful job but why don’t you use a  no black color for the new text in you « Read me » ?


Logged
DarkBeam
Global Moderator
Fractal Senior
******
Posts: 2512


Fragments of the fractal -like the tip of it


« Reply #18 on: February 20, 2012, 06:28:51 PM »

The best answer is; try and try... It's too long explain all in detail for Jesse A Beer Cup
Logged

No sweat, guardian of wisdom!
Sockratease
Global Moderator
Fractal Senior
******
Posts: 3181



« Reply #19 on: February 20, 2012, 06:51:53 PM »

I agree with Darkbeam for the most part.  It is often more an intuition for many settings more than any set procedure  embarrass

But I can help with One of your questions!

2°) under the option « Interpolate », which variable is interpolate ? DE ? and how ?

Try varying the Weight Parameter.

Here's a thread discussing it, with an example m3a file to show how to animate the weights and morph one formula into another  (along with many interesting shapes in-between).

http://www.fractalforums.com/mandelbulb-3d/the-interpolations-in-mandelbulb3d/

And may as well post the gif just because...



Other advice:  When you see an interesting image posted in the Gallery or Forum or elsewhere, and it has the parameters posted, copy them and open them in M3D - then look at how it was done, change stuff to see what happens, and learn from others.

Hope that helps..
Logged

Life is complex - It has real and imaginary components.

The All New Fractal Forums is now in Public Beta Testing! Visit FractalForums.org and check it out!
mkbrouse
Explorer
****
Posts: 44



« Reply #20 on: February 25, 2012, 07:48:52 PM »

Wow - a new version? Sweet!

Looks like I have to figure out how to upgrade, thanks a bunch Jesse!  A Beer Cup
Logged

Thanks!
Michelle
Pages: 1 [2]   Go Down
  Print  
 
Jump to:  

Related Topics
Subject Started by Replies Views Last post
mandelbulb3d and mandelbulber Discuss Fractal Forums blu art 0 886 Last post May 01, 2012, 01:14:44 AM
by blu art
Mandelbulb3d used for Futurama-Episode? Fractal News across the World Chillheimer 4 1071 Last post June 15, 2014, 02:29:37 AM
by cKleinhuis
about Mandelbulb3d License ヾ(・・*) Mandelbulb 3d IETSUGU 6 724 Last post June 26, 2014, 04:02:37 PM
by IETSUGU
Mandelbulb3d v1.8.9 x2 Releases « 1 2 » DarkBeam 20 12350 Last post October 03, 2015, 12:08:49 PM
by DarkBeam
MutaGenerator for Mandelbulb3D feature request cricke49 4 871 Last post March 29, 2015, 02:05:05 PM
by Andrea81

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines

Valid XHTML 1.0! Valid CSS! Dilber MC Theme by HarzeM
Page created in 0.211 seconds with 29 queries. (Pretty URLs adds 0.012s, 2q)