CGTalk > Techniques > Lighting and Shaders
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 10-23-2012, 01:43 PM   #1
Janderson87
Veteran
 
Janderson87's Avatar
portfolio
James Anderson
3D Creative Designer
United Kingdom
 
Join Date: Jan 2011
Posts: 31
Help needed with Vray Sun/Sky

Hi Guys,

So I'm (slowly) teaching myself how to use 3DS Max and Vray. I'm trying to get to grips with the Vray sun/sky feature but I think I'm fundamentally misunderstanding something as the results I'm getting aren't what I expected or am trying to achieve.

I'm trying to create a room lit by daylight only, but I can't get the light to disperse evenly around the room from the windows - instead I get a very bright/overexposed exterior and a dull, gloomy interior. I thought it was maybe a problem with my materials but I created a dummy scene to experiment with and couldn't do any better.

The WIP scene is image2.jpg, whereas the dummy scene is vraysun3.jpg. Maybe I'm just expecting unrealistic results but was wondering if anyone could shed some light (ha!) on the situation.

I'm by no means an expert on lighting or photography so it may be that I've made a silly mistake when setting up my camera. I've also attached the settings I've used for the camera and sun.

Cheers! J
 
Old 10-24-2012, 02:34 PM   #2
alienretro
Veteran
portfolio
Nicholas Amorim
Dublin, Ireland
 
Join Date: Apr 2011
Posts: 34
For the Vray sun/sky work properly, you must activate gamma. You will see a general increase in brightness.

Search for Linear workflow, although it and gamma aren't the same thing, linear worflow is a current workflow trend and it deals with gamma.

Some people would say you could also simply increase your ISO 'til you get the lighting you want, as you won't get grain as in traditional cameras.

Last edited by alienretro : 10-24-2012 at 02:37 PM.
 
Old 10-24-2012, 02:34 PM   #3
CGTalk Moderation
Lord of the posts
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,480
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 03:50 PM.


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