White border around sprite

[Hapistorique]

Hey,

I have a problem when importing a sprite in Unity and TK2d : there is a small border of 1px around some part of the sprite, like this :



It happens only when the background of the imported image is white in the inspector, but I don't see the reason of this, I'm importing all the images in .png made with photoshop

Do you have any idea on how to fix this ? :/


EDIT : by using the "point" filter I'm getting better result but I'm still getting white points on it :


EDIT 2 : Tried the tk2d camera, but I don't know if it's worth it ? The problem disapear but it's still not perfect, the black pixels are off

[unikronsoftware]

This is an issue with your source artwork (or rather, the application saving it out) - the easiest way is to work around this is to use premultipled alpha. Turn it on in the sprite collection editor, and then switch your atlas material to
PremulVertexColor.

[Hapistorique]

How should the files be exported ?

I am just saving sprites as .png with a transparent background

[unikronsoftware]

Here is an explanation of why it happens:
http://unikronsoftware.com/2dtoolkit/forum/index.php/topic,189.msg693.html#msg693

Hope it gives you a lot more insight into this. It is a common issue with textures with alpha where filtering is used, and the texture is scaled up.

[Hapistorique]

I can't access the link you gave

An Error Has Occurred!
The topic or board you are looking for appears to be either missing or off limits to you.

[unikronsoftware]

Ah. Its in the private support forum. You'll need to register as shown here to get access:
http://unikronsoftware.com/2dtoolkit/forum/index.php/topic,34.0.html