CGTalk > Software > Autodesk Maya
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 08-13-2013, 02:05 PM   #1
Kinematics
187
kinematics
CG Artist
USA
 
Join Date: Sep 2002
Posts: 827
Send a message via MSN to Kinematics
50% displacment not leaving geo alone - Vray

Hey guys,

I Used a 4092 texture map at 50% grey for base, 16bit & 8bit. Also checked & followed this tutorial and tried -0.5 for displacement shift which gave a worse off result. Thread about displacment

Can't seem to have 50% grey leave the geometry alone. Why? You'll notice the geometry ends up thicker regardless.

 
Old 08-13-2013, 03:25 PM   #2
cgbeige
Expert
 
cgbeige's Avatar
portfolio
Dave Girard
Opinions are mine. You can't have them.
San_Francisrococo, USA
 
Join Date: Jul 2005
Posts: 7,001
50% grey actually just means "displace my geometry by half the value of white" you have to either change the 50% grey to black or change the "water line" by lowering the alpha offset to negative one-half of your alpha gain value in the displacement image file's Color Balance option. so if your alpha gain is 1.8, your alpha offset should be -0.9
 
Old 08-13-2013, 03:30 PM   #3
terminvox
Veteran
 
terminvox's Avatar
Seb Gwyther
Visualiser/Modelmaker
WfT
Bristol, United Kingdom
 
Join Date: Mar 2005
Posts: 36
I think in the image you've posted the displacement shift would need to be -0.025
Thats 1/2 of your displacement amount (0.05) and negative.
If displacement was 1 the shift would be -0.5.
 
Old 08-13-2013, 03:30 PM   #4
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 10:15 AM.


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