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displacement maps

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  #1  
Old 10-13-2005, 03:01 AM
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pjstaley pjstaley is offline
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displacement maps

Apologies if this is the wrong forum. I need a displacement map that will conform an image to look like drapes. Please advise.
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Old 10-13-2005, 05:22 AM
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philbach philbach is offline
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Displacement Maps

Well they are fun to fiddle with and there are a number of good references across the web: Click(1) , Click (2) , Click (3)

But I would also recommend you post the photo you want to be displaced on this site and let various people fiddle with it. All of us could look at the results of various renderings and learn from it.

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Old 10-13-2005, 11:05 AM
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You can get some nice "drape" effects with the Filter -> Render-> Fibers in PhotoShop. May require CS1 version.
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Old 10-13-2005, 11:27 AM
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Making Drapes

A quick way to start on drapes is to Make a new document. Use default b&w colors. Select the gradient tool. Select foreground to background gradient. Use difference for the blending mode on gradient options. Then with the gradient tool go part way across your picture and fiddle with it. You can use the skew command to shrink the top of the drapes some.

Its easy and a good way to start on drapes or make a displacement map.

You can colorize the drapes; place a pattern on a higher layer and use multiply blending mode to blend the pattern into the drapery.
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Old 10-13-2005, 03:16 PM
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Here's the pic

The problem I'm running into is that when I create the displacement map and apply it to the image, you can barely tell that it's there. Please advise.
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File Type: jpg rainbow.jpg (4.1 KB, 19 views)
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Old 10-13-2005, 03:37 PM
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Smile Rainbow Displacement

Well I displaced your rainbow. I opened your photo "rainbow" and selected the red channel first and ran a gradient foreground to background with default colors and difference mode and then did the same with the green channel. I then saved this file as displacement map.psd.

I then reopened the rainbow file and copied it to a new layer. To make room for the displacement I increased the canvas size. I then ran filter/distort/displace and used the settings enclosed in the screen dump.

If you don't have enough extra room to displace the image it won't displace.
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File Type: jpg Channels.jpg (27.6 KB, 34 views)
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Old 10-13-2005, 03:58 PM
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Ah, the good ol' days...

Technical Slop > Table of Contents
Curve It Skew
Curve It Squish

And don't forget lighting. Lighting is *very* important.
Intro: Theory I
Finishing Touches

Last edited by Stroker; 10-13-2005 at 04:05 PM.
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Old 10-13-2005, 04:19 PM
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Bill M Bill M is offline
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This image shows your rainbow thing displaced by Phil's curtain (curtain resized to be slightly larger than the rainbow). You can see the strange effect it has, an effect that doesn't really look like a curtain. But if you overlay it on the image that was used for the displacement map, it all makes sense.
Bill
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File Type: jpg Displace-drapes.jpg (47.1 KB, 32 views)
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Old 10-13-2005, 07:33 PM
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thank you

Thank you all so much for all your input. It was extremely helpful! B-T-W Bill, the overlay blending mode was a key factor in achieving the excellent results. I was able to create a custom displacement map by dragging multiple short gradients across my canvas in "difference" mode, then adding the rainbow jpeg as a layer in overlay mode. Perfect! Exactly what I was trying to achieve.

Last edited by pjstaley; 10-13-2005 at 08:57 PM.
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Old 10-13-2005, 08:23 PM
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Marthig Marthig is offline
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Well I ran into the same problem as Pjstaley the displacement map I prepared was a real curtain --a photo found with Yahoo! search-- converted to monochrome fixed it a bit to make it easier to adjust the levels to almost black and white, saved it as a displacement map then applied it to a copy of Pjstaley's image, modified the resolution to 150 dpi then, filter-distort-displace and all I got where some dark bluish stripes.
So I just copied and pasted on the image. Duplicated the curtain and the base image and made a sandwich. At the bottom placed the coloured image, next layer, the curtain, blend mode colour burn, opacity 75 fill 59%. Next layer coloured image, blend mode vivid light, opacity 100% and last layer the curtain again, blend mode pin light, opacity 75% fill 59%. I am posting below the result.
Hope it helps - Regards
Martha
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File Type: jpg rainbow-copy.jpg (99.4 KB, 23 views)
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