How to change level in Alpha Channel ?

Become a member of the CGSociety

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

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
  04 April 2012
Question How to change level in Alpha Channel ?

Hello,

I am loading an .exr file which contains also alpha information.
In Photoshop it's easy to change the levels of an channel - I simple click the channels tab, go to my channel I want to change and make my color, levels adjustments.

But how can I make those edits on the alpha channel, or any other channel inside fusion ?

thx
 
  04 April 2012
thats very easy:
if you use a colorcorrector, go to the tab with the little nuklear sign on it. then untick R,G,B and only leave A active. this means all your changes just go onto the alphachannel and dont affect RGB.
the colorcorrector has also a levels tab, where you can adjust the levels like in PS.

if you use the Brigthness/Contrast node, its even easier. there are the controls on which channel you work on the main tab.

if you use the colorcurves node there you have a seperate curve for R,G,B and A

Last edited by pingking : 04 April 2012 at 07:06 PM.
 
  04 April 2012
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
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 12:36 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.