Photoshop lens blur not working with depth map

Forum|Forum|6 years ago
January 16, 2020
3 replies
2432 views

I am trying to blur a picture gradually. As you see in the pictures I made a Gradient map, but at the end the lens blur effect does not work properly. Though there ist a different between the top and the buttom of the picure. But it is not like a real blur effect!

Problem or error

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Correct answer davescm

Try setting your layers and channels like this so the Alpha channel just contains greyscale gradient - nothing else

Dave

Chuck Uebele

Community Expert

As Dave mentioned. Just have your depth map channel as just the gradient. Look at your screen shot. You have the pattern of your main layers showing on the depth map. This is because you used a gradient with transparency. But you should just use the gradient tool directly on a new channel and not on a layer.

davescm

Correct answer

Community Expert

Try setting your layers and channels like this so the Alpha channel just contains greyscale gradient - nothing else

Dave

Chuck Uebele

Community Expert

You've got the pattern on your image in the depthmap channel, which is throwing things off, bluring some items and not others at the top of the image. Rather than create a gradient layer, make a new channel and apply the gradient just to it for your depthmap.

Ali TeshniziAuthor

Participating Frequently

I am quiet a beginner. So I did not understand what you mean. Could you explain a bit?

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