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+--- Thread: Gimp Layer Mask (/Thread-Gimp-Layer-Mask)
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Gimp Layer Mask - iconwilly - 02-14-2023
When I made an image in GIMP I overlayed a paper texture onto my photo making the image look like it's made of paper.
But when I transfered the image to VTF or made it my computer background, the paper texture I added seems to be missing, is there a way to add this texture to the image so it looks like this no matter what, when I put it in VTF or any other software.
Thanks.
RE: Gimp Layer Mask - rich2005 - 02-14-2023
What image format are you exporting ?
Try flattening the image before the export. Image -> Flatten Image.
RE: Gimp Layer Mask - iconwilly - 02-14-2023
(02-14-2023, 09:36 AM)rich2005 Wrote: What image format are you exporting ?
Try flattening the image before the export. Image -> Flatten Image.
I am exporting in tga (targa)
RE: Gimp Layer Mask - rich2005 - 02-14-2023
It should be: what you see is what you get.
Instead of flattening the image I made a Layer -> New from Visible before exporting to a TGA file. Just used the default setting. RLE compression on.
That displays correctly outside Gimp.
[attachment=9368]
Maybe it is your workflow, can you give details. Layer mask ?
RE: Gimp Layer Mask - iconwilly - 02-14-2023
(02-14-2023, 09:55 AM)rich2005 Wrote: It should be: what you see is what you get.
Instead of flattening the image I made a Layer -> New from Visible before exporting to a TGA file. Just used the default setting. RLE compression on.
That displays correctly outside Gimp.
Maybe it is your workflow, can you give details. Layer mask ?
Let me try an go through my process.
1. I create a 1024x1024 image with a transparent background.
2. I open another image with the same parameters. (Paper)
3. I then add an alpha channel to my first image then add a layer mask.
4. I click on the layer mask and paste the second image from 2 onto the image.
5. The Image shows transparent areas on the original image and when I download it, it looks like how I want it.
6. I try and make it my background on my computer or put in vtfedit but the layer mask isnt applied to the image at all, even though I see it when I look in my folder or look at it in my image viewer.
RE: Gimp Layer Mask - rich2005 - 02-14-2023
There are a couple of things there but really should not make any difference.
(3) add an alpha channel and then a layer mask. The layer mask adds the alpha, adding an alpha channel is redundant.
I suppose, I am getting the same as you, views ok in a file viewer but since I have no knowledge of valve or vtfedit all I can suggest is either apply the layer mask or a new from visible.
FWIW that as an animation. https://i.imgur.com/f2UcdH6.mp4
Probably an issue with the TGA format. The vtfedit page says png is also a valid format.
Maybe someone else has other advice.
RE: Gimp Layer Mask - PixLab - 02-14-2023
Quote:3. I then add an alpha channel to my first image then add a layer mask.
4. I click on the layer mask and paste the second image from 2 onto the image.
The Targa file format doesn't store transparency in the same way as formats such as png so it needs to have an alpha channel which is a component of an image which describes how transparent each pixel is... > https://graphicdesign.stackexchange.com/questions/53644/handle-a-transparent-layer-in-targa-file (yeah that's not from me, just clicking on google first link)
Here also is a good read about targa > https://community.adobe.com/t5/photoshop-ecosystem-discussions/saving-an-image-as-tga-with-transparency/m-p/3588469
Roughly, your mask needs to be an alpha channel, thus copy your mask and paste it on the alpha channel or create a new one called "Transparency" and copy your mask on it, as it is said in that post in the last link.
On GIMP it would be something like: In the layer's dialog CtrL+Alt+Click on the mask to make it visible on the canvas, then in the Channel tab/dialog drag down any channel, then go back to the layer's stack and do a Ctrl+Alt+Click on the mask to remove its visibility as a "working layer" (Ctrl+Alt+Click on the mask is a toggle)... roughly.. (maybe you need to delete your mask after that, I did not try)
a 20-second video https://imgur.com/Q4SgxpS
RE: Gimp Layer Mask - iconwilly - 02-14-2023
(02-14-2023, 11:14 AM)PixLab Wrote:Quote:3. I then add an alpha channel to my first image then add a layer mask.
4. I click on the layer mask and paste the second image from 2 onto the image.
The Targa file format doesn't store transparency in the same way as formats such as png so it needs to have an alpha channel which is a component of an image which describes how transparent each pixel is... > https://graphicdesign.stackexchange.com/questions/53644/handle-a-transparent-layer-in-targa-file (yeah that's not from me, just clicking on google first link)
Here also is a good read about targa > https://community.adobe.com/t5/photoshop-ecosystem-discussions/saving-an-image-as-tga-with-transparency/m-p/3588469
Roughly, your mask needs to be an alpha channel, thus copy your mask and paste it on the alpha channel or create a new one called "Transparency" and copy your mask on it, as it is said in that post in the last link.
On GIMP it would be something like: In the layer's dialog CtrL+Alt+Click on the mask to make it visible on the canvas, then in the Channel tab/dialog drag down any channel, then go back to the layer's stack and do a Ctrl+Alt+Click on the mask to remove its visibility as a "working layer" (Ctrl+Alt+Click on the mask is a toggle)... roughly.. (maybe you need to delete your mask after that, I did not try)
a 20-second video https://imgur.com/Q4SgxpS
When I add the transparency image it goes onto the image as a new layer like this. When I ctrl alt click on it nothing comes up so I can't get through this part. I don't know why it makes a new layer above my own image.
The Image.
RE: Gimp Layer Mask - PixLab - 02-14-2023
(02-14-2023, 09:27 PM)iconwilly Wrote:(02-14-2023, 11:14 AM)PixLab Wrote:Quote:3. I then add an alpha channel to my first image then add a layer mask.
4. I click on the layer mask and paste the second image from 2 onto the image.
The Targa file format doesn't store transparency in the same way as formats such as png so it needs to have an alpha channel which is a component of an image which describes how transparent each pixel is... > https://graphicdesign.stackexchange.com/questions/53644/handle-a-transparent-layer-in-targa-file (yeah that's not from me, just clicking on google first link)
Here also is a good read about targa > https://community.adobe.com/t5/photoshop-ecosystem-discussions/saving-an-image-as-tga-with-transparency/m-p/3588469
Roughly, your mask needs to be an alpha channel, thus copy your mask and paste it on the alpha channel or create a new one called "Transparency" and copy your mask on it, as it is said in that post in the last link.
On GIMP it would be something like: In the layer's dialog CtrL+Alt+Click on the mask to make it visible on the canvas, then in the Channel tab/dialog drag down any channel, then go back to the layer's stack and do a Ctrl+Alt+Click on the mask to remove its visibility as a "working layer" (Ctrl+Alt+Click on the mask is a toggle)... roughly.. (maybe you need to delete your mask after that, I did not try)
a 20-second video https://imgur.com/Q4SgxpS
When I add the transparency image it goes onto the image as a new layer like this. When I ctrl alt click on it nothing comes up so I can't get through this part. I don't know why it makes a new layer above my own image.
The Image.
Click on that button to anchor it (Before "Paste" ot "Ctrl+V" you have selected the mask...)
![[Image: vREWLWw.png]](https://i.imgur.com/vREWLWw.png)
RE: Gimp Layer Mask - iconwilly - 02-15-2023
(02-14-2023, 09:27 PM)iconwilly Wrote:(02-14-2023, 11:14 AM)PixLab Wrote:Quote:3. I then add an alpha channel to my first image then add a layer mask.
4. I click on the layer mask and paste the second image from 2 onto the image.
The Targa file format doesn't store transparency in the same way as formats such as png so it needs to have an alpha channel which is a component of an image which describes how transparent each pixel is... > https://graphicdesign.stackexchange.com/questions/53644/handle-a-transparent-layer-in-targa-file (yeah that's not from me, just clicking on google first link)
Here also is a good read about targa > https://community.adobe.com/t5/photoshop-ecosystem-discussions/saving-an-image-as-tga-with-transparency/m-p/3588469
Roughly, your mask needs to be an alpha channel, thus copy your mask and paste it on the alpha channel or create a new one called "Transparency" and copy your mask on it, as it is said in that post in the last link.
On GIMP it would be something like: In the layer's dialog CtrL+Alt+Click on the mask to make it visible on the canvas, then in the Channel tab/dialog drag down any channel, then go back to the layer's stack and do a Ctrl+Alt+Click on the mask to remove its visibility as a "working layer" (Ctrl+Alt+Click on the mask is a toggle)... roughly.. (maybe you need to delete your mask after that, I did not try)
a 20-second video https://imgur.com/Q4SgxpS
When I add the transparency image it goes onto the image as a new layer like this. When I ctrl alt click on it nothing comes up so I can't get through this part. I don't know why it makes a new layer above my own image.
The Image.
I did the ctrl+alt+click method stated here after I was able to anchor the image but I am still running into the problem even after deleting the mask aswell.