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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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 Posted: Fri Nov 16, 2012 3:51 am Post subject: Why can't you apply noise on a blank layer? |
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I mean you need to have something on the layer for noise to work. Why? What's the logic behind it? |
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SCTRWD
Joined: 20 Jul 2011
Posts: 79
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| Posted: Fri Nov 16, 2012 5:00 am Post subject: |
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Because noise implies just that. Some random data added to the main signal  |
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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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| Posted: Fri Nov 16, 2012 2:47 pm Post subject: |
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Oh OK, so no main signal = no noise |
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SCTRWD
Joined: 20 Jul 2011
Posts: 79
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| Posted: Sat Nov 17, 2012 6:44 am Post subject: |
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In case you simply want to have noise on a separate layer, there is a simple way:
create new layer, fill it with 50% gray, set blend mode to Hard Light or Overlay and apply the Noise filter to that layer.
Using Levels, Curves, mask, etc on that layer lets you have enough versatility and options. |
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Netaddict
Joined: 16 Feb 2011
Posts: 332
Location: Earth
PS Version: CS6
OS: Windows 7 Professional
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| Posted: Sat Nov 17, 2012 10:50 pm Post subject: |
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Thanks for the tip.
One really stupid question coming up, how do I get 50% gray? |
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SCTRWD
Joined: 20 Jul 2011
Posts: 79
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| Posted: Sat Nov 17, 2012 11:30 pm Post subject: |
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There is the option in Fill dialog. |
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thehermit
Joined: 05 Mar 2003
Posts: 3987
Location: Cheltenham, UK
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| Posted: Sun Nov 18, 2012 3:27 am Post subject: |
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Shift+5
_________________
If life serves you lemons, make lemonade! |
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