Cor'e =) Posted September 12, 2009 Share Posted September 12, 2009 I have a black&white image that looks all bumpy, and i have another image (color) that looks grainy. How do i use the black&white image to make the grainy one look bumpy and grainy? People seem to show this everywhere, but how's it done? Quote Link to comment Share on other sites More sharing options...
APShredder Posted September 12, 2009 Share Posted September 12, 2009 I'm not really sure what you mean, could you post an example? Quote BlendModes Plus | Dissolve | Extract Color Link to comment Share on other sites More sharing options...
Cor'e =) Posted September 12, 2009 Author Share Posted September 12, 2009 I don't have a before/after example, sorry... But, let's say i have a B&W picture of a ski slope that is all bumpy (lots of moguls), then i have this color picture of a wide rainbow, now i would like the rainbow to have the bumps from the ski slope. For example. =) Quote Link to comment Share on other sites More sharing options...
APShredder Posted September 12, 2009 Share Posted September 12, 2009 OK, I think I get what you want to do. Try using the Alpha-Displacement plugin. Quote BlendModes Plus | Dissolve | Extract Color Link to comment Share on other sites More sharing options...
Axle Posted September 12, 2009 Share Posted September 12, 2009 i agree with APShredder on this, alpha displacment would be the way to go Quote My Deviant Art | My Gallery Link to comment Share on other sites More sharing options...
Cor'e =) Posted September 12, 2009 Author Share Posted September 12, 2009 Well, i tried about 30 different Distortion Effects (including AD) and only two gave me the kind of effect i was looking for, Ripple & Drop Ripple, which gives a kind of "shadows" to the image, but all of them distorted the image edges a lot which is not desired. I'm looking for a way to maybe "emboss" the bumps without losing the rainbow's edge geometry, or at least not too much. Maybe this is a shadow thing (guessing from the Ripple Effects i saw)? Is this called 2D or 2.5D "Bump Mapping"? I found a picture of what i'd like to learn to do in PDN, seeing this can someone tell me the steps i need to take? Quote Link to comment Share on other sites More sharing options...
Curmudgeon Posted September 12, 2009 Share Posted September 12, 2009 Have you tried emboss, relief, or normal map? Looking at it, I'd try normal map, and use blend modes to get the effect you're looking for. Quote Link to comment Share on other sites More sharing options...
Crimson Posted September 12, 2009 Share Posted September 12, 2009 Try putting the "bumpy" image on a new layer above the other one, and play with the layer blend modes (I suggest trying Overlay, but other modes may yield better results.) Quote Create A Professional-Looking Product Advertisment Mockup flickr | Deviant Art Link to comment Share on other sites More sharing options...
LFC4EVER Posted September 12, 2009 Share Posted September 12, 2009 Run Height Field to Normal Map on the B&w image to your liking. Make it black and white again. Then put this layer above the image you want to apply the bumps to. Set the blend mode to overlay. Lower opacity and mess with the brightness and contrast of the B&W image to get a result you like. Quote ☆★☆★Merry Christmas★☆★☆ .::.My Gallery.::.Make Gold Text!.::. Link to comment Share on other sites More sharing options...
Cor'e =) Posted September 12, 2009 Author Share Posted September 12, 2009 All: LFC4ever that's it! Thank you very much, i see how to do the "bumps" and "dimples now (if inverted after making it B&W again) by using the Height Field to Normal Map Effect! BTW, how does it choose the direction of the light source?? Here's what i got from my example: Quote Link to comment Share on other sites More sharing options...
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