Logo by Pauldelbrot - 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. September 22, 2019, 01:34:05 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 [3] 4 5   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: Patryk Kizny Raytracer Updates  (Read 5852 times)
0 Members and 1 Guest are viewing this topic.
Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #30 on: October 31, 2015, 09:52:12 PM »

Patryk Kizny, are you want to upgrade GI or add features from GI to DE-raytracer?
Did you try Sky-Pathtracer? It's much more cleaner and faster than GI,  and lighting... so wonderful  roll eyes
Logged

Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #31 on: October 31, 2015, 11:20:18 PM »

Not sure yet. Sky is a good idea.
As for now checking ant trying to understand Effie's GI.
Will see about merging some concepts into my tracer. A few bounces would actually make images look more organic. But don't want to kill the GPUs. There's already lots of stuff there.
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #32 on: November 01, 2015, 11:07:28 AM »

So why does your Vimeo say 'Dick Ulus'? That's where I took it from.
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
3dickulus
Global Moderator
Fractal Senior
******
Posts: 1558



WWW
« Reply #33 on: November 01, 2015, 11:33:59 AM »

I don't use my real name anywhere on the internet, or at least I try not to use it. Regardless, on FF I am known by my username. If I used my real name and email on every site that requires a login to participate then I would be easily tracked and hacked.
Logged

Resistance is fertile...
You will be illuminated!

                            #B^] https://en.wikibooks.org/wiki/Fractals/fragmentarium
Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #34 on: November 01, 2015, 01:43:40 PM »

See attached 1.1.9
IBL seems to work properly now, added controls for how much IBL affects shadowed areas.

* DE-PK-1.1.9.frag (55.46 KB - downloaded 121 times.)
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #35 on: November 01, 2015, 05:17:22 PM »

Another update adds glossiness parameter to all materials.
This gives more control over reflections.
Though, the reflections still seem to be very buggy.


* DE-PK-1.1.9.frag (56.58 KB - downloaded 113 times.)

* Test.jpg (180.31 KB, 1522x1189 - viewed 213 times.)
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #36 on: November 01, 2015, 06:48:36 PM »

Nice ))) You read my thoughts man! Can you add smooth parameter for reflections?  roll eyes
Logged

Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #37 on: November 01, 2015, 07:04:00 PM »

It's controlled separately for the floor and objects using glossiness sliders.
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #38 on: November 05, 2015, 06:25:26 PM »

@Patryk Kizny, i spend some time playing with parameters in de-pk-116. And i found "bug" when lightsourse(spotlight) too long from scene. In original kn2 there is no bud here. Can you fix it?

I have investigated the problem with and it looks like it's sitting in the main trace function, that simply breaks off the main loop. I think this is the matter of overshooting the surface.
I have no idea why it happens, but I can confirm it is also in the DE-Kn2 raytracer. Usually, it's possible to tweak everything using FudgeFactor.
t happens only in the center of the frame and against surfaces that are more perpendicular to the ray.

« Last Edit: November 05, 2015, 07:49:49 PM by Patryk Kizny » Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #39 on: November 05, 2015, 08:42:41 PM »

DE-Kn2 cleaner )
I repeated test with the same parameters of lightsource distance.
Logged

Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #40 on: November 06, 2015, 12:03:24 AM »

OK, probably these are 2 different issues then. Ill check with your test file.
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #41 on: April 06, 2016, 10:48:12 AM »

Played some time with glossy materials. Good work, Patryk!
Some parameters make lighting very similar to path-tracing renders. This is really cool! I'll try to combine material feature with latest changes in Knighty's DE. I hope that my video card does not burn  shocked
Logged

Patryk Kizny
Global Moderator
Fractal Fertilizer
******
Posts: 372



kizny
WWW
« Reply #42 on: April 06, 2016, 10:58:28 AM »

It's cool you're playing with it!
Logged

Visual Artist, Director & Cinematographer specialized in emerging imaging techniques.
Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #43 on: April 06, 2016, 10:45:42 PM »

I cut all code from DE-PK-1.1.9 besides materials. Just wanted to see how it works. This func makes reflections smooth
Code:
if (hitMat.glossiness>0.0){
vec3 jitter = hitMat.glossiness*(rand(curPos.xy*(float(subframe)+1.0))-0.5);
Ray = SRReflect(Ray, hitNormal + jitter, 0.*minDist);
}
So i have too much white dots, when glossiness = 0 and FudgeFactor=1, image has no artifacts when FudgeFactor decreased. Is any way to get smooth glossy material with FudgeFactor near 1?

Tests:
Raysteps=500,ReflNumer=1,FudgeFactor=1 / Raysteps=500,ReflNumer=1,FudgeFactor=0.4


Raysteps=500,ReflNumer=2,FudgeFactor=0.4 / Raysteps=1000,ReflNumer=1,FudgeFactor=0.14


Finally nice lighting  roll eyes
« Last Edit: April 07, 2016, 06:38:38 AM by Crist-JRoger » Logged

Crist-JRoger
Fractal Fertilizer
*****
Posts: 389



WWW
« Reply #44 on: April 09, 2016, 11:23:41 AM »

Glossiness is very nice material parameter and it makes lighting on scene more realistic. Maybe there is some way to repeat this parameter like GI but more faster?
I tried some different functions for jitter, they all works strange... Need help  embarrass
Original image


Patryk Kizny's
Code:
vec3 jitter = hitMat.glossiness*(rand(curPos.xy*(float(subframe)+1.0))-0.5);


from Knighty's volumetric light
Code:
vec3 jitter = hitMat.glossiness*(rand(viewCoord+vec2(1.6183+float(subframe+1))));


from Kali's volumetric light
Code:
vec3 jitter = hitMat.glossiness+rand(curPos.xy+vec2(subframe,subframe*1.12358))-.9;

Logged

Pages: 1 2 [3] 4 5   Go Down
  Print  
 
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Updates to Pages and New Images added Images Showcase (Rate My Fractal) Nahee_Enterprises 14 5254 Last post May 08, 2009, 01:44:39 PM
by Nahee_Enterprises
Mandelbulb 3D for mac ! (with updates !) Mandelbulb 3d « 1 2 » slock 24 16229 Last post October 08, 2015, 11:31:00 PM
by jered
Implosion Group, fractalfield.com projects updates/collaboration invited Let's collaborate on something! danwinter 2 1151 Last post December 01, 2012, 12:40:22 AM
by stereoman
Implosion Group, fractalfield.com projects updates/collaboration invited Philosophy danwinter 2 1318 Last post January 08, 2013, 12:59:21 PM
by jehovajah
Fractal Raytracer Fractal Programs « 1 2 3 » Hedanito 31 4732 Last post December 18, 2013, 10:27:11 PM
by Hedanito

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 0.147 seconds with 28 queries. (Pretty URLs adds 0.014s, 2q)