Adding blur to Unity's 'Skybox' shader?

I have a textured skybox, but I would like to add blur dynamically. Is this possible with unity's 'Skybox/6 Sided' shader?

I see the shader has parameters for 'Exposure' and 'Rotation' but is there any way I could add a 'Blur' to it?

How would (Gaussian) blurring be implemented?

Would it affect the Environmental Lighting or Reflections?

Cheers!

 

Not really, no. With a cube map shader, maybe, but it’d be expensive. The easiest solution would be to import your sky in as a cube map and select the “Glossy Reflections” checkbox which blurs the texture in the mip maps. Then write a custom shader to select the mip level to increase the blur. That’s be the cheapest solution.

This could plausibly affect the reflections if you used a real time reflection probe. Environment lighting won’t be affected much since it’s already based off of a blurred version of the skybox.

Otherwise the next easiest solution would be to use a depth of field post process.

 

here's the poor-man's method on how to do it :

Add DepthOfField and set the distance as far as you can so your scene objects won't be affected.

Cheers!