Shader that blurs out the edges of object independent of texture?

Hello,

Don't know much about shaders, have never written one, but I can't seem to find how to do something that would seem relatively popular.

Looking to do something like this, whereas the beige area would be the alpha:



The edges need to blur/feather/fade out, while the center would be completely opaque — a radial blur.



Thank you for reading.

 

There is a post process effect called vignette and also chromatic Aberration that gives a similar effect. Unity pro only.

http://docs.unity3d.com/Documentation/Components/script-Vignetting.html

 

There is also my PostProcess Effects Pack with slightly more optimised vignette and couple more suitable effects together with 60 more.

The pack will be in the 24 Hour Deals on November 01, 2013 with 50% off price.

 

You might be able to do this using tex2DLOD and a mask texture?

Might not look very pretty, but it wouldn't need Pro.

 

How will you blur(EDIT: Efficiently) the background without render texture?

 

Ah, right. Yeah, you couldn't use tex2DLOD.

I read the post as being for just that texture (or similar ones) rather than being applied to multiple objects.

 

@Brianasu: These will affect all objects in the scene, I believe, I'm looking to blur out just a single one.

@Aubergine: Does your shader provide a radial blur per object, not per scene?

I think I might use this shader script for now, which simply allows for the alpha channel to be an independent texture.

 

You could render the object you want to apply an image effect to with a separate camera that doesn't clear the screen (ClearFlags.Nothing), after rendering the rest of the scene regularly..

 

The above comment saved my life. Thank you