Can you post some example?

I use PS too and resize sometimes, I've never noticed that. I guess you're careful to make the final size exactly 4x the size in pixels?

weirdly enough, if i MOVE the selection before clicking ok (resizing using control+T, typing in 400% in the height/width box), sometimes it fixes.

i just dont want to have to move and check everything when i scale it up

anoniguy, how do i go about doing that?

I'm baffled. It does it to me too, even weirder! (moves some corner pixels around)
Never noticed before, I don't usually resize this way, I thought you meant resizing the whole piece.

You might always do that: select, copy to new layer, duplicate layer to new file, resize new file, re-duplicate layer to 1st file. A bit cumbersome, but I've found myself doing it at times.

bah, i've been talking in PC speak without realising!
its command+t on my keyboard (mac) but its in the same place as control on a pc keyboard

Blueberry: no, not specifically on the edges.

There's probably the answer to that hidden somewhere in PS prefs or help. I'll check later.

Edit / Preferences / General / Interpolation > nearest neighbor.
(translated from French, hope I'm not too far off)

This should be the setting for PA anyway; I didn't do it before because I also work on other stuff, and don't/rarely resize PA.

With this setting, I can't replicate my weird 1st try, and it works fine if I don't move the selection before applying transform. If I do move it, I can get the same thing as you.

Too bad I missed this thread. Actually, to scale your image pixel-perfect, you should have resampling turned off. Nearest neighbour will not add more colors to your image, but will attempt to antialias by using colors from surrounding pixels. That's why there's a stray pixel here and there. Here's the dialog box so show that option.



I'm on CS4, but this option should be in the older PS builds as well. Hope this helps.

I apologize to everyone for a gross error. I forgot that disabling resampling will only alter the DPI of the image, still retaining the pixel dimensions.
I've scanned through several forums about that issue. It seems like it's a random bug in Photoshop where it trims off some pixels off your image.

Best bet would be resizing the whole image. Image>Image Size... Set width and height to a % multiple value (200,300,etc.). Have Resample Image checked with Nearest Neighbor turned on.
I'd recommend that you don't use the transform tool when working with pixel art. A misclick and you could accidentally nudge the scaling or rotation without you noticing.

I still recommend trying out Graphics Gale for pixel art. http://www.humanbalance.net/gale/us/download.html
You might have to customize the layout and shorcuts, but after that you'll really speed up your workflow. The free version doesn't save .gifs, but it's more efficient to export them and save in either AfterEffects or Photoshop.
It's so annoying that Adobe merged Fireworks with Photoshop. Now all the features that would have been useful to pixel artists have been mixed with standard digital painting tools.

Again, I apologize for my initial posting... I should've double-checked it on my system before I mentioned it.


Edited by rustEdge - 12 January 2010 at 11:30pm