Slight UV Nudging

[apocriva]

In some situations when scaling up a UI (to make "fat pixels"), I've found that the triangles rendered by NGUI are resulting in ever-so-slightly-off textures. This manifests as funny-looking jaggies along the edge of what should be straight lines.


This is remedied by putting in a very small nudge when calculating texture UVs.


I've posted the small changes I made within NGUIText.cs and NGUIMath.cs for this. Thought it might be useful for others.
http://pastebin.com/C7cBW2d1

[ArenMook]

That's a strange hack, I must admit.

[apocriva]

Little tiny precision errors make things round off incorrectly sometimes... bit this I've found to be unpredictable -- if I scale things up one way it works, another way it doesn't! iunno.

Oh wait now, it has become clearer once I started having something at the edge of the screen. There is a half-pixel offset being applied to the widget meshes that I wasn't expecting. Anyway, these are self-inflicted issues due to the fact that I'm forcing NGUI into pseudo-pixel-perfection and not really letting it be pixel perfect.

[rain]

This fix messes up the new anchoring system for me.

[raomuqi]

I have similar problem :
a strange line appear when i scale down a sprite equiped with a triangle image