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Is there a way to turn off antialiasing on brushes?


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Apologies if this has been answered before; I did a quick search and checked the FAQ but didn't find what I was looking for.

I've got an image I need to clean up the edges of and just carve off some stray pixels, but I'm not sure how to do it. The eraser tool is antialiased, but I need a sharp edge so I don't affect the color of the parts I'm trying to keep. I found a thread detailing the addition of antialiasing options in the layer blend ranges settings, but as far as I can tell that doesn't affect brushes like this. I'm not sure if I'm looking for a different feature or if I just set it up wrong, but in the end I haven't figured out how to get the effect I need. Any help would be appreciated!

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E.g. the Lasso or Marquee tool, Feather 0, Antialias off?

Or create a mask and paint with the Pixel tool?

MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2

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20 minutes ago, anon2 said:

cmd key makes it behave as an eraser

I knew there was something special about the Pixel tool that I may have noticed before but forgot about it!

MacBookAir 15": MacOS Ventura > Affinity v1, v2, v2 beta // MacBookPro 15" mid-2012: MacOS El Capitan > Affinity v1 / MacOS Catalina > Affinity v1, v2, v2 beta // iPad 8th: iPadOS 16 > Affinity v2

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33 minutes ago, anon2 said:

Pixel Tool is not antialiased, and (on a Mac) cmd key makes it behave as an eraser.

There are three "Alternate" modes for this tool selectable from the context toolbar, so if using the CMD key with it does not erase check that. It is the rightmost item on the context toolbar so if the window is not wide enough to show it, you may need to chick on the >> to see it.

alternate.jpg.9b81138944f835ea8efb254b033568ff.jpg

All 3 1.10.8, & all 3 V2.4.1 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
Affinity Photo 
1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7

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