GIMP Version: 2.8.4
Operating System: Mac OS
OS Version: Mavericks 10.9.1
GIMP Experience: Beginner Level

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Hey guys,

So i've been wrecking my head all day trying to figure out how & where to modify my ''Underlying layers'' for an image I am working on.

The overall project/design is for a t-shirt mock-up template. The whole idea is to make it as realistic looking as possible (photorealistic)

I found a great tutorial (which unfortunately was made for photoshop... ) I was to follow it and pretty much apply the instruction to Gimp. However, there is part where the ''Underlying layers'' are being tweeked.

I'm stuck at this point and hoping someone can point me in the right direction from here.

Because i'm a new user I can't post URLS, but here's the video for the tutorial.

I am able to follow everything up to (4:32)

http://layersmagazine.com/designing-a-l ... oshop.html

By the way,this is my first post, so if it's not in the correct area of the forum mods please correct me and thanks in advance.

Happy Holidays!

As was seen in the video, make a selection of the graphic being used and the cut the selection from the desaturated t-shirt, place it over/on top of your graphic's and try out different layer modes.
Maybe trying overlay, with some opacity lowering. Or maybe even multiply.
You might also try a bump map of the desaturated t-shirt on to the graphic you're using.
This might get you the desired results. If not, then I did my best.

Hey thanks for the response.

Maybe i'll try that. Honestly though I'm just looking for a way to access the 'Underlying layers'

Hi otherwhirl,

Just wanted to let you know that you can't post links until you get 5 posts, but you can attach images and files. You might want attach a screenshot to better clarify the question and the problem you are having.

I've updated the link in your first post.

Sorry about that guys

That sucks because the quality of the video is not good at all, thus the screenshot will be terrible

Hopefully someone who's familiar with this will have a solid solution

Anybody?

At 4.32 in the video he starts manipulating the top layer. As Wallace suggested (select the top layer) play with layer modes and opacity.

While a PS tutorial can be a decent guide for ideas, gimp tends to throw you for a loop anytime you try to follow one of those step by step. What I saw him do in the video can be reproduced in gimp with layer modes, bump maps and displacement. There's really no way to give you solid numbers as to what to use and how much, etc, you kind of have to get a feel for it.

Gimp doesn't use "layer styles". Instead we use layer modes, bump-mapping and layer displacements.
What's being done in the video with the layer styles dialog is a combination of something akin to bump-mapping and layer modes.
Layer displacement as well as bump mapping can produce the same kind of results as what is being applied to the image using the layer style dialog and PS.

At that point, you should have an image similar to the attached .xcf file, comprising a background layer ("t-shirt.jpg"), a hidden displacement map layer ("disp map"), and the distorted graphic layer ("wilber"). It should appear like this:


GIMP does not have a direct equivalent to Photoshop's "layer styles", so you will need to first create a desaturated version of the t-shirt to correspond to selecting "gray" for the Photoshop Blend If option.

• Duplicate the background layer.
• Desaturate the duplicate layer (using luminosity).
• Activate the "wilber" layer and perform "Layer->Transparency->Alpha to Selection".
• Create a layermask on the duplicate layer, choosing "Layer's alpha channel" for the Initialize Layer Mask To option.

You next need to create a layermask on the "wilber" layer and place inside of it a copy of the "t-shirt.jpg" layer.

• Create a layermask on the duplicate layer, choosing "Selection" for the Initialize Layer Mask To option.
• Activate the background layer and perform an "Edit->Copy"
• Activate the "wilber" layermask and perform an "Edit->Paste Into".
• Perform a "Layer->Anchor Layer".

At this point your layer stack should look like this:

(You can download the XCF file for this from here.)

You can now use the "Colors->Levels" tool to adjust the tone and contrast of the shadows -- moving the triangles in the Levels tool roughly corresponds to the "underlying layers" controls of Photoshop's Layer Styles dialog.

I followed the same tutorial and this is what I came up with using "bump-mapping" and and overlay of the desaturated bump copy. I also used the bump copy for the displacement map.
The original skull layer mode was set to burn, and a copy of that layer with the mode set to normal, lowering the opacity a little.
The bump/displacement copy was put on top and set to overlay mode and also lowering its opacity some.

Very cool Wallace, nice job, so you didn't use displacement?

Yes I use displacement, just forgot to mention that. I did edit my post adding displacement. Sorry...

I wondered how you got all those nice wrinkles on the shirt someone forgot to iron.

very good explanation and images Saul.

The t-shirt was used as I found it, all wrinkly and stuff. Wrinkles are in anyway.

Yeah all that is pretty much what I was trying to say only I was being lazy. My apologies. I would have done it exactly like Wallace did it if I had the oompf to do anything worthwhile these days.

It only took me about 5 minutes to do. It took me longer to find the t-shirt I used for the image.

You clearly underestimate my ability to remain absolutely useless and motionless for the duration of winter.