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Stuart5C70
Participant
March 28, 2021
Question

Knockout using Threshold makes picture disappear?

  • March 28, 2021
  • 1 reply
  • 324 views

Hey

looking for some help when using the Knockout blending option with threshold.

I'm following a YouTube tutorial and stuck due to the below issue:

 

what I'm doing is;

Original picture layer at the bottom

adding a threshold adjustment layer

adding a second threshold adjustment layer

going to advanced blending options and changing the second threshold layer to "deep" at this point the picture then disappears.

 

If I use a greyscale document I can get it to work, I need it to be in colour as per the tutorial, so this is confusing me even more!


I can't find any answers to what the issue is!

any help is appreciated!

 

cheers

This topic has been closed for replies.

1 reply

davescm
Community Expert
davescmCommunity Expert
Community Expert
March 28, 2021

Deep knockout knocks through to a background layer, if the bottom layer is not a background layer then it knoocks through to transparency

So the question is this. Is your bottom layer a background layer or an ordinary layer (e.g. layer 0)? It sounds like the latter.

 

Dave

 

S
Stuart5C70Author
Participant
March 28, 2021

I've tried both,

originally is was my photo I was working on

at the bottom, then I tried with a coloured layer below my photo to see if It made a difference.

tried multiple versions of the photo piled on top of each other haha.

When I switch the deep knockout on it does go to transparency though.

 

what I'm confused by is if I greyscale the document it will work.

S
Stuart5C70Author
Participant
March 28, 2021

Sorry I should say I tried a background layer also 

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