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How to use one shape to subtract from another?

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I zoomed in because I can't show the entire thing, but basically, the design will be printed on a black t-shirt. The only part of the design that will be saved is the white part. To make it easier for me to see when designing it, I made the background black, which I will remove before exporting the file to send to the printer. Because I only want the file/image to contain white (but forgot that I would be removing the background before exporting the file), in order to create a 'hole' in the white section, I used the pen tool to create the shape that I want to remove from the white part and filled it with black. Again, I forgot I would be removing the black background, so now I have a white layer with a black layer on top of it, but really I just want the white layer with an empty space where the little black shape is. The problem is, I have so many of these little black shapes that need to be 'subtracted' from the white layer, so I need to somehow do just that, subtract it, or use it as a mask I guess, rather than using the eraser.
Any help, please?

Thanks!
 

bbr.png

wbr.png

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When you create a SHAPE you want to REMOVE from the White ( so the black shirt shows through after printing... at the top right of AD you will see (or should see) a group of images in a box titled

OPERATIONS. Ensure you SELECT the WHITE image that is to be printed TOGETHER with the Shape you want to REMOVE from the white. Then with these Selected go to the OPERATIONS Box and SELECT the second image to the right. It has a light blue square with a grey circle  by it.The grey circle has the  mathematical MINUS sign  ( - ) on it. Click on that icon and Voila! there is now a Transparent area on the white image to be printed, where the black shirt will show through.

59a1131ee99d6_Screenshot1.jpg.1c9de92e9c13749f18623a47e1128724.jpg59a1131fb8f7f_Screenshot2.jpg.040d6b77ce3705c8d025a8568842e532.jpg59a11321a1e3c_Screenshot3.jpg.8e7d4dc42e4ac26f16a7e5e6f6602a17.jpg

 

 

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@LyricsGirl I'm having a bit of a problem now :/ It was working up until just now. It still is working intermittently, but now I'm trying to subtract one shape (black, in front) from another (white, in back) using the same method, and it's instead deleting the white shape altogether, and turning the black shape's fill to white. Any ideas? Thanks again! I really appreciate it.

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Okay, so, I figured it out by clicking buttons lol... What I essentially had was, from back to front, white, black, white, black. So I selected the whites, and the black sandwiched between them, and hit combine. That did exactly what I wanted. Then I took the front-most black and selecting both it and the rest of the white, hit subtract, and it did what it should (basically burn a hole through the white).

Thanks again for the help! And yes, I'll share a pic when it's all done and printed :)

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1 hour ago, afinally said:

Okay, so, I figured it out by clicking buttons lol... What I essentially had was, from back to front, white, black, white, black. So I selected the whites, and the black sandwiched between them, and hit combine. That did exactly what I wanted. Then I took the front-most black and selecting both it and the rest of the white, hit subtract, and it did what it should (basically burn a hole through the white).

 

If you have a white object at the bottom of the stack, the result of the 'Combine' operation will be white. It doesn't matter what the other colours are.

 


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9 hours ago, afinally said:

...... and it did what it should (basically burn a hole through the white).

 

 

An alternative:

You can also just set the black bits to the Erase blend mode. That'll burn a hole right through multiple layers of any type (if you want it to ;)).

(this assumes you don't mind a rasterized final output)

 

As far as the Boolean Subtract method goes.... a little tip.

Select all (or a lot) of the black "to erase" bits at once, Boolean Add them together and do just one (or at least fewer) Subtract(s).

(rather than subtracting one at a time)

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On 8/26/2017 at 9:22 AM, LyricsGirl said:

When you create a SHAPE you want to REMOVE from the White ( so the black shirt shows through after printing... at the top right of AD you will see (or should see) a group of images in a box titled

OPERATIONS. Ensure you SELECT the WHITE image that is to be printed TOGETHER with the Shape you want to REMOVE from the white. Then with these Selected go to the OPERATIONS Box and SELECT the second image to the right. It has a light blue square with a grey circle  by it.The grey circle has the  mathematical MINUS sign  ( - ) on it. Click on that icon and Voila! there is now a Transparent area on the white image to be printed, where the black shirt will show through.

59a1131ee99d6_Screenshot1.jpg.1c9de92e9c13749f18623a47e1128724.jpg59a1131fb8f7f_Screenshot2.jpg.040d6b77ce3705c8d025a8568842e532.jpg59a11321a1e3c_Screenshot3.jpg.8e7d4dc42e4ac26f16a7e5e6f6602a17.jpg

 

 

 

Hi! How can I make it in Affinity Photo? I can't see operation box. Thanks.

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@andrewio select both and go to layer geometry.

you can allso drag the toolbox in, view costumize toolbar.


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32 minutes ago, andrewio said:

Thx, Why option is not available?

Screenshot 2019-11-08 at 18.00.52.png

It won't work with pixel objects only with vector objects, like the basic shapes.


intel core i5,  16GB 128Gb ssd win10 Pro Huion new 1060plus.

philips 272p 2560x1440px on intel HD2500 onboard graphics

Razer Tartarus Chroma

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