RetouchPRO

Go Back   RetouchPRO > Tools > Software
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Software Photoshop, Lightroom, Paintshop Pro, Painter, etc., and all their various plugins. Of course, you can also discuss all other programs, as well.

Opacity or Flow?

Reply
 
Thread Tools
  #1  
Old 01-24-2007, 09:42 PM
D Thompson's Avatar
D Thompson D Thompson is offline
Senior Member
 
Join Date: Jan 2005
Posts: 176
Opacity or Flow?

I use CS2 and have a question on using any type of brush. I usually have the brush opacity set to 100% and flow to anywhere from 2-10% for control. A lot of the tutorials I've read say use a low opacity, but never mention the flow. Would it be better to set the opacity to 2-10% and flow to 100% or does it matter?

Thanks in advance,
Dennis
Reply With Quote top
  #2  
Old 01-24-2007, 11:11 PM
Doug Nelson's Avatar
Doug Nelson Doug Nelson is offline
Janitor
 
Join Date: Aug 2001
Posts: 7,068
Blog Entries: 21
Re: Opacity or Flow?

Different strokes, of course, but opacity is much more predictable (for me) than flow. Flow will vary the opacity depending upon your stroke speed.

Try this experiment:

Pick a dark non-black color and a large hard round brush on a white document. Set opacity to 10% and flow to 100% and slowly draw a single line across the top, varying the speed a little but never letting up on the mouse button.

Now repeat on the bottom, only reverse the opacity and flow numbers. When I do this, I get a smooth line at the top and a lumpy mess at the bottom.

Of course, if you get better results using flow, more power to you. Whatever works for you is the best technique.
Reply With Quote top
  #3  
Old 01-25-2007, 12:38 AM
Syd Syd is offline
Senior Member
 
Join Date: Mar 2006
Posts: 275
Re: Opacity or Flow?

Doug's advice is spot on. Do the experiment and you will see for yourself the difference. I asked exactly the same question not so long ago and Murray gave the FOLLOWING excellent advice.

Sincerely syd
Reply With Quote top
  #4  
Old 01-25-2007, 11:10 AM
D Thompson's Avatar
D Thompson D Thompson is offline
Senior Member
 
Join Date: Jan 2005
Posts: 176
Re: Opacity or Flow?

Interesting experiment and I see what you mean, it almost looks like it was created by a spiralograph (if you remember one of these ). I also tried with a large soft brush, which is the one I use the most, and didn't notice the same type pattern. With a 10-flow/100-opacity I can keep the mouse button down and go back over to build the color up. With 100-flow/10-opacity you have to release the mouse button each time to build the color up.

It also looks like it starts out a lot lighter with the lower opacity. I guess it might depend on what brush you're using and the purpose as to which you'd use. Here is a small jpg with the results, tho don't know if you can tell much.

Thanks Doug & Syd for your replies.

Dennis
Attached Images
File Type: jpg brushtest.jpg (52.1 KB, 18 views)
Reply With Quote top
  #5  
Old 01-25-2007, 12:37 PM
BillFrey BillFrey is offline
Senior Member
 
Join Date: Feb 2006
Posts: 209
Re: Opacity or Flow?

The 'spiral' looking effect is because PS's default Spacing is 25%, I almost always use <5% for a smooth brush.

Try the test again again moving the spacing lower and you'll see the difference.
Reply With Quote top
Reply

  RetouchPRO > Tools > Software


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Opacity / Fill ps palms Software 2 01-26-2007 02:29 AM
Opacity VS Flow Syd Software 2 11-01-2006 11:15 AM
June 06 Contest Discussion T Paul Contests 138 07-11-2006 07:23 PM
photoshop7.0 fill and opacity denschneider Software 1 11-03-2002 09:20 PM
Gradient applied to opacity possible?? Jon Software 3 09-23-2002 11:32 AM


All times are GMT -6. The time now is 11:15 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved