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Shader for halo effect on 2D logo?

Started by Machaira Oct 7, 2010 at 8:21 AM 4 replies 3k views

Original Post

Oct 7, 2010 at 8:21 AM

I'm looking to create a shader to apply a glowing halo around a logo, something similar to the post corona shader in the nVidia FX Composer library. Can anyone point me to something that does this?

Thanks!

Hodgman

Oct 7, 2010 at 9:07 AM

Valve's "Improved Alpha-Tested Magnification for Vector Textures and Special Effects" paper gives a good technique for doing a glow effect on 2D objects (and outlines, drop shadows, etc). It does require writing a tool to pre-process your 2D shape though.

remigius

Oct 7, 2010 at 9:21 AM

Is this their Distance Field thing? Because if so, you can get that over here (in XNA 3.1, feel free to update [smile])

Machaira

Oct 7, 2010 at 11:45 AM

A drop in solution would be nice, since I have to deliver Saturday, but thanks for the link. Looks like interesting reading if nothing else.

remigius

Oct 8, 2010 at 3:06 AM

I have to ask, what's not drop-in about the XNA project I linked to? It seemed fairly complete and selfcontained to me? [smile]

Machaira

Oct 8, 2010 at 1:45 PM

I didn't see your sample when I posted. It's not quite what I'm looking for though. I'm looking for something more like this

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