Logo by Fiery - 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: Did you know ? you can use LaTex inside Postings on fractalforums.com!
 
*
Welcome, Guest. Please login or register. October 18, 2019, 05:09:06 AM


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]   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: Fine tuning ??  (Read 684 times)
0 Members and 1 Guest are viewing this topic.
CeleXaoS
Alien
***
Posts: 37


bleeding nose


« on: May 19, 2012, 06:59:31 PM »

Its me again .
This time i want to ask about the noise effect that i usually  observe in my fractals.
I used to believe that i was being just plain unlucky and immediately changed my formulas without even thinking about dealing with the
frustrating dust particles.

Why is noise generated ?? Is it  the result of miscalculations of the program or just a faulty shape .?
I read that i can avert the undesired effect by adjusting the values in:

Raystep Multiplier
Stepwidth limiter
Stepcount for Binary search and Smooth normals  ( i think i should input higher values  huh?)

Tips and Advice will be greatly appreciated thanks
Logged
Sockratease
Global Moderator
Fractal Senior
******
Posts: 3181



« Reply #1 on: May 19, 2012, 07:11:12 PM »

Why is noise generated ?? Is it  the result of miscalculations of the program or just a faulty shape .?

Neither.  It's inherent in the fractal.  These shapes are not solid - they are "point clouds"  

Some points are just "stray"

Other ways to reduce the noise would include increasing the DE Stop, rendering at 2 or 3 times oversized and scaling down, or post work  (a "blur brush" or even a "clone stamp" can work wonders!).

« Last Edit: May 19, 2012, 07:21:50 PM by Sockratease » 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!
DarkBeam
Global Moderator
Fractal Senior
******
Posts: 2512


Fragments of the fractal -like the tip of it


« Reply #2 on: May 19, 2012, 07:48:07 PM »

(a "clone stamp" can work wonders!).

Clone stamp? shocked Noooo grin
Logged

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



« Reply #3 on: May 19, 2012, 08:00:23 PM »

Clone stamp? shocked Noooo grin

If the alternative is to set the raystep multiplier so low that it wants a week to render  -  Absolutely Yes!

We're just talking about getting rid of noise.  Not altering entire compositions   police
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!
CeleXaoS
Alien
***
Posts: 37


bleeding nose


« Reply #4 on: May 19, 2012, 09:14:35 PM »

Hahah .... Azn Azn yes Photoshop will work indeed !!   
  But I will try to experiment with the Raystep multiplier even if it takes an eternity to render. snore snore
Logged
lxh
Iterator
*
Posts: 178


« Reply #5 on: May 20, 2012, 07:37:43 AM »

Sometimes the noise is only in few critical areas. In this case i lower raystep multiplier and stepwidth limiter and use "recalculate a selection" of the post processing. If this works, i just have to recalculate the shadows. This is much faster than calculate the whole image. But it only works with the same DEstop value. Otherwise you get edges of the selection.
Logged

I've learned so much by my mistakes that I'm planing to do some more.
Pages: [1]   Go Down
  Print  
 
Jump to:  

Related Topics
Subject Started by Replies Views Last post
synthclipse.96 syntax checking screwed, everything else works fine Synthclipse cKleinhuis 7 565 Last post September 11, 2014, 08:19:59 PM
by cKleinhuis
The fine art of surfacing Mandelbulb3D Gallery Dermis 2 384 Last post February 02, 2015, 11:16:17 PM
by cKleinhuis
Wouldn't this make a fine print for women clothes? Fractal Humor youhn 12 920 Last post March 08, 2015, 12:06:07 PM
by cKleinhuis
A Fine-Tuned Universe Movies Showcase (Rate My Movie) brasnacte 0 240 Last post December 07, 2015, 01:08:12 PM
by brasnacte
Fine decoration Images Showcase (Rate My Fractal) Caleidoscope 1 254 Last post February 05, 2017, 02:06:01 PM
by Dinkydau

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 0.101 seconds with 28 queries. (Pretty URLs adds 0.006s, 2q)