Volumetric Image Effect Shader

Converted this old godrays shader ( http://unitycoder.com/blog/2012/10/02/fake-godrays-shader/ ) into image effect – interesting results! (see video below)

Source codes below (Attach script to main camera)

Scene has just few spotlights, particles, and 3d objects..

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References:

Image effects tutorial – http://www.alanzucconi.com/2015/07/08/screen-shaders-and-postprocessing-effects-in-unity3d/