atlas maker, masking size

spexel

I was trying to create an atlas using atlas maker in substance designer but I have an issue with the masking sizes. 


Maybe I don't understand how that works but I thought I was supposed to get a mask that would be 256 pixels offset to the right and with a size of 256x256. What happens though is when I open the uv snapshot in photoshop, the sizes don't match, this is what i get:



What am I doing wrong here?

Thanks

cptSwing

Yeah, the math is off somehow. I hacked together an Atlasmaker (adding padding and the like) using this and a few other similar substances a while back and also had to manually test values to get the exact pixel values I needed. I think it's mentioned in one of the (two?) Atlas Maker threads on Allegorithmics forum as well. Without further features it's fairly useless for now, though as mentioned, it did give me something to work off.

cgvinny

Hey, I guess you are using functions underneath: can we see them?