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I know this may be a "short" question, but still here it goes.

I would like to know how to achieve a post rendering effect, that looks like the following image from walking dead series:

enter image description here

I will make the art already fitting the style, but what if I want to make the colors more coherent by adding a color filter such as the one in the picture?


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For starters, it looks to me like a lot of the blue has been removed from that image. – stephelton Mar 15 '12 at 4:53
Check this – msell Mar 15 '12 at 7:44
That looks like sepia or exaggerated technicolor: there are a bunch of glsl shaders out there that do this ( for example). – Jonathan Dickinson Mar 15 '12 at 15:11

What you could do to match this scene:

  • Grunge. Multiply dirt textures into the meshes' textures to make it look rustic.
  • Fog and clouds. If you notice, the brown clouds and dusty fog really pull this scene together.
  • Sepia. As Johnathan Dickinson mentioned, you could use a sepia shader to finish it off.
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Easiest approach to sepia would be to mix every resulting pixel with sepia color at specified proportion. Pseudocode: Result.rgb = lerp(Color.rgb, Sepia.rgb, Factor); Where Sepia tone may need some tweaking as well (check these variants for example:

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