are there any tutorials on understanding displacement?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

Thread Tools Search this Thread Display Modes
  03 March 2013
are there any tutorials on understanding displacement?

Especially in Renderman compliant engines. I'm using 3Delight to render and one of the things I'm running into is that I can't find the absolute neutral, which is supposed to be Gray127 or 128 on the Grayscale. I'm working with a very low poly mesh and I'd like to get a handle on using displacement mapping for folds and pleats...
  03 March 2013
for 8 bit images, usually the black stays still while the white extrude. You'll have to set the alpha offset to negative half of alpha gain in your texture node manually to have your grey become the mid point (1 and -0.5, etc)
  03 March 2013
that's true in a few engines. Pretty sure Renderman Compliant ones push black down and white up. I know 3Delight does.
  03 March 2013
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

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
Society of Digital Artists

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

All times are GMT. The time now is 03:16 AM.

Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.