Bricks in Motion
We are a friendly filmmaking community devoted to the art of stop-motion animation using LEGO® and similar construction toys. Here, you can share your work, join our community of other brickfilmers, and participate in periodic animation contests!
A place to discuss, share, and create stop motion films.
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I followed the directions in Rsteenoven's tutorial, and instead of the background image, I'm getting white nothingness. Please help.
Oh! Oh! I know how to do this! Open up GIMP, go into File>>Open as Layers>>(whatever SAME CAMERA ANGLE image you load), then do the same thing and this time, choose the image you want to mask something out of. Then go into Mask>>Add Layer Mask, and then go into Mask>>Apply layer mask. Then SWITCH TO YOUR ERASER!!!!! Then erase out what you don't want, the save it, and tada! You have your masking done.
I have a video tutorial
go check it out
That was weird, I had to add the Alpha Channel like what Mutuceba said, yet I'm running Windows. Thanks so much Mutuceba! 
Can't help you there 
I used your advice, BGanimations
Thanks
I used your advice, BGanimations
Thanks
Anytime. 
how do you erase in gimp when you are trying to mask and the eraser will not erase:/
Bumping old topics unnecessarily doesn't make anyone happy. 
Especially over 3 years later. If you have a question you can't find the answer too go on and treat yourself to a new topic next time!
If you add the mask, you don't use the eraser to remove stuff. You use the pen tool with the color set to black.
I always just add an alpha channel.
If you add the mask, you don't use the eraser to remove stuff. You use the pen tool with the color set to black.
What? How do you mask?
If the eraser tool isn't working, he's probably just highlighting the wrong layer.
IDK what I am doing but when I first started masking the eraser tool would not work for me. So what I did was add a layer mask, so when you draw on the mask the black pixels will actually be transparent. I thought that's how everybody does it. Huh. Wonder where I learned that, because I had never used gimp before.
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