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Camera Glow Shader

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#1 mauro78   Members   

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Posted 06 November 2012 - 02:49 PM

Hi All,

I really want to add an effect like this to our 3D Engine:

Posted Image


This is the so-called Mental Ray "Camera Glow Shader". We want it to apply such effects to some objects we have in the level.
Any idea/guideline about implement this?

Regards

Mauro
Ion6

#2 gfxgangsta   Members   

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Posted 06 November 2012 - 04:25 PM

Depending on a number of things, like which objects you want the effect on, and how close you can get to those objects, you might be able to get away with a simple hack like using a quad with alpha that represents the glow. If you can't get away with a simple trick like that, you can search for "Bloom" or "Bloom Shader".

http://en.wikipedia.org/wiki/Bloom_(shader_effect)

Edited by gfxgangsta, 06 November 2012 - 04:26 PM.


#3 Ashaman73   Members   

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Posted 07 November 2012 - 06:42 AM

If you want excatly this effect, a simple bloom will not do it. A bloom filter would have a more equal distribution of the light bleeding. In your example the vertical effect is much larger than the horizontal effect. It is hard to beat mental ray with a real time shader, but if just want some light bleeding, then bloom is the way to go.

Ashaman

 

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#4 mauro78   Members   

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Posted 07 November 2012 - 12:54 PM

Thx guys I'll try this way......just an early test

Posted Image


I'll test different shape and blur parameters...

Edited by mauro78, 07 November 2012 - 04:18 PM.





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