Newbie Notes: Clipping Mask in GIMP
Lilcajunett asked me about using masks in GIMP. There are quite a few YouTube tutorials on various aspects of using masks in GIMP, from making a Vignette to using a Gradient mask. Just go to YT and type in “GIMP mask” and find one you might like to master. What I couldn’t find – and would use the most myself – is a tutorial on how to use a clipping mask. Eventually I came up with this “work-around”. There may be a better way to do this. If you know of one, do please let me know!
You can use a clipping mask to attach a scrapbooking paper, a photograph or any other image to a frame or a shape, or to fill text. It’s a very useful technique, and allows you to make your own matching elements for LOs. I have packaged up the screenshots below into a folder which you can download. It might make the tutorial easier to follow. I’m hoping the following will be helpful, Lilcajunett 🙂
1: Fire up the GIMP and open the shape you want to use as a clipping mask.
2: Open the paper/photograph/image you want to attach.
Here I have used one of the papers from my latest kit, “Panache”.
3: Bring your shape above the paper so you can see what you are doing.
Choose the Fuzzy Select tool but make sure you have all the correct boxes ticked.
If these boxes are not visible, you may have your Brushes Dialog tab selected.
If so, click on the Tool Options tab. (in the centre of the toolbox panel)
Click the Fuzzy Select tool on the outside of the shape.
This is the part you want to remove.
I redid this a few times to check the details…
If you tick the box “Sample merged”, make sure you turn off the visibility of the paper layer,
which is what I did the first time around.
4: With the marching ants active, select your paper layer.
NB: Now is the time to make sure you are happy with the positioning.
Move paper/photo/image around until the best part is within the shape.
5: As in the picture above, choose Layer-Transparency-Add Alpha Channel.
You need to do this step because if you just press Delete at this stage,
you will end up with a white border around your new element.
6: With your paper layer selected, and the marching ants still marching, press delete now.
7: Select-None to turn off the ants. Turn off the shape layer.
Save your new element as a png.