Atlas corruption when adding 1024 texture

[nopecio]

Hi,
I couldn't find anything related, but sorry if already reported.
I have an atlas 1024x1024, and when i add a large texture (1024x1024) instead of expanding the atlas size if completely destroys it, removing all the atlas info, forcing me to re create it.

I found the only solution was recreate the atlas, and manually (and painfully) re assign every texture again to each UI element.
I would be great if this could be fixed.

All the best

[nopecio]

Ok seriously, this is terrible, this is the 5th time i have to re do my all GUI!!!
it happens randomly, not only with 1024 textures (in size)

[yuewah]

you are using the texture packer come with the NGUI ?

[ArenMook]

1024 +1024 requires a 4096 texture, which is not supported on mobile, so it gets shrunk by Unity.

In case you're wondering why, it's because there is 1 pixel of padding, so 1024+1024 means you need 2049 pixels, which requires the next power-of-two dimension, so 4096.

[nopecio]

Thank you for your answers, all good
Having this in mind will easy my UI pains.
It could be great if some mechanism could warn the user (i know this might be out of NGUI's control)

BTW, is the new Packer better thank unity's built in one?

[ArenMook]

I have no idea. It's just an alternate algorithm requested by people here.

[nah0y]

+1 for warning that the atlas is going to be destroyed (and prevent this from happening). I know that ex2D does that, sending you an error : "the sprite can't fit in the atlas". So that might be possible ?

@nopecio : If you want to use a huge sprite that is 1024x1024, do not put it in an atlas, instead, use a "Simple Texture" to display it.