CGTalk > Techniques > Lighting and Shaders
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 01-27-2003, 08:00 PM   #1
EricCartman
Freelancer
 
EricCartman's Avatar
portfolio
Jure Zagoricnik
3D & Web
Freelancer
Slovenia
 
Join Date: Jul 2002
Posts: 936
Send a message via ICQ to EricCartman Send a message via MSN to EricCartman

Rendering Basics

Hey guys,

I am "new" to 3D stuff and would like to ask for some help.

I've done some modeling but I never really got into rendering and lighting.

My question is this:

What renderer was used here and how was this set created (see render picture below). I would really appriciate it if one could explain it to me or point me in the right direction.

Thanks a million.

 
Old 01-27-2003, 11:02 PM   #2
saturen3
Know-it-All
 
saturen3's Avatar
ali reza seifi
animator
Tehran, Iran
 
Join Date: Jan 2003
Posts: 376
Send a message via MSN to saturen3 Send a message via Yahoo to saturen3
hi dear eric

i can explain you somethings that i know .
first i must to say that this picture uses gi
( global ilumination ).
this system of lighting calculates the reflect of lights in the real world .
this part is new in the softwares such as 3dsmax .
and if you want to know that in max , i can tell you somethings ;
1.in the 3dsmax5 in the light psrsmeteres select skylight and place it above of yur object .
2.use a lightblue for inviroment background .
3.at rendering\advanced lighting check the light tracer part .
4.set the lighttracer acttive .
now render the scene .
if you cant mean it contact me .
bye now
 
Old 01-27-2003, 11:22 PM   #3
EricCartman
Freelancer
 
EricCartman's Avatar
portfolio
Jure Zagoricnik
3D & Web
Freelancer
Slovenia
 
Join Date: Jul 2002
Posts: 936
Send a message via ICQ to EricCartman Send a message via MSN to EricCartman

Wow!

That worked great. I used Brazil 1.0

Thanks a bunch.

Would you mind, if I contact you if I encounter any more problems?
 
Old 01-29-2003, 08:06 PM   #4
saturen3
Know-it-All
 
saturen3's Avatar
ali reza seifi
animator
Tehran, Iran
 
Join Date: Jan 2003
Posts: 376
Send a message via MSN to saturen3 Send a message via Yahoo to saturen3
hi dear eric
i hope that you used these commands properely
thank you
yes i get happy if i can to help to you.
contact me
bye
 
Old 01-30-2003, 12:45 PM   #5
Mauritius
"Expert"
 
Mauritius's Avatar
Moritz Múller
Chrome-Sphere Render-Pimp
/*jupiter jazz*/
Hamburg, Milano, Tokyo, Singapore, Hong Kong
 
Join Date: Dec 2001
Posts: 660
Send a message via ICQ to Mauritius Send a message via MSN to Mauritius
saturen3: your first assumption is wrong.
It uses ambient occlsuion.

Ao calculates the occlsuion of every point on the surface against a hemisphere who's axis of revolution is defined by the surface normal at that point or the average of the directions rays are reflected to.
It has nothing to do with global illumination though it requires a ray-tracing capable renderer.

If the image did use global illumination, the downside of the bike would be much brighter due to the light reflected from the ground plane.

Cheers,

.mm
 
Old 01-30-2003, 02:14 PM   #6
joconnell
Idiot
John O'Connell
tea maker / drinker
Dublin, Ireland
 
Join Date: May 2002
Posts: 1,037
That's brazil with a diffuse depth of 1 - no bounce light as mauritius said - It is using a skylight but not GI - It's definitely brazil, I know the look of the undersampling on the skylight anywhere
 
Old 01-30-2003, 02:42 PM   #7
Khepri
"simplicity is the key"
 
Khepri's Avatar
Roderick van der Steen
Netherlands
 
Join Date: Jul 2002
Posts: 272
GI isn't the same as radiosity. (allthough it can use radiosity)

and this looks like brazil indeed
__________________
www.rain3danimator.com
 
Old 01-30-2003, 05:39 PM   #8
saturen3
Know-it-All
 
saturen3's Avatar
ali reza seifi
animator
Tehran, Iran
 
Join Date: Jan 2003
Posts: 376
Send a message via MSN to saturen3 Send a message via Yahoo to saturen3
i think that i was wrong .
thank you friends for your replies .
i thought that its system is gi .
 
Old 01-30-2003, 08:25 PM   #9
Mauritius
"Expert"
 
Mauritius's Avatar
Moritz Múller
Chrome-Sphere Render-Pimp
/*jupiter jazz*/
Hamburg, Milano, Tokyo, Singapore, Hong Kong
 
Join Date: Dec 2001
Posts: 660
Send a message via ICQ to Mauritius Send a message via MSN to Mauritius
Quote:
It's definitely brazil, I know the look of the undersampling on the skylight anywhere


I doubt you could tell the look of monte carlo irradiance undersampling artifacts in PRMan 11, MRay 3, Brazil or 3Delight from each other. They all look the same.

.mm
 
Old 02-05-2003, 05:34 AM   #10
dflipb
Veteran
 
dflipb's Avatar
 
Join Date: Aug 2002
Posts: 69
Send a message via AIM to dflipb Send a message via MSN to dflipb
hemmm.... am I hearing a challenge? =D
 
Old 02-06-2003, 01:52 PM   #11
joconnell
Idiot
John O'Connell
tea maker / drinker
Dublin, Ireland
 
Join Date: May 2002
Posts: 1,037
Quote:
Originally posted by Mauritius
I doubt you could tell the look of monte carlo irradiance undersampling artifacts in PRMan 11, MRay 3, Brazil or 3Delight from each other. They all look the same.

.mm


Also it's the default skylight colour with brazil :P - I'll concede on the undersampling
 
Old 02-07-2003, 04:13 PM   #12
Gunnah
Veteran
 
Gunnah's Avatar
Chris Pember
lighting/fx dude
Prime Focus
Canada
 
Join Date: Jul 2002
Posts: 90
if *we* cant be sure of the undersampling aritfacts, how can *you* be so sure it's 'ambient occlusion'?(when in fact, it could also be a clever standard lighting trick .. Just because there's no bounce light, doesn't mean it's ambient occlusion

G


Quote:
Originally posted by Mauritius
saturen3: your first assumption is wrong.
It uses ambient occlsuion.

Ao calculates the occlsuion of every point on the surface against a hemisphere who's axis of revolution is defined by the surface normal at that point or the average of the directions rays are reflected to.
It has nothing to do with global illumination though it requires a ray-tracing capable renderer.

If the image did use global illumination, the downside of the bike would be much brighter due to the light reflected from the ground plane.

Cheers,

.mm
__________________

 
Old 02-07-2003, 04:51 PM   #13
joconnell
Idiot
John O'Connell
tea maker / drinker
Dublin, Ireland
 
Join Date: May 2002
Posts: 1,037
Let's have a dance off!!!
 
Old 02-12-2003, 01:36 AM   #14
playmesumch00ns
Lord of the posts
 
playmesumch00ns's Avatar
render monkey
pretty picture maker
United Kingdom
 
Join Date: Jul 2002
Posts: 3,420
My vote says it's GIJoe
__________________

You can have your characters photoreal, fast or cheap. Pick two.
 
Old 01-14-2006, 07:00 AM   #15
CGTalk Moderation
Lord of the posts
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,481
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright ©2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 11:06 AM.


Powered by vBulletin
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.