Atmospheric Perspective

[stevel]

I'm a newbie, but trying to learn! From looking at various renderings out there, I've noticed that some artists are able to use atmosperhic perspective on buildings (so, for example, a brick wall nearest the viewer has more detail and color and then fades out and becomes lighter as the wall recedes in the distance), or background trees are bluer, etc.

 

How is this done?

 

Thanks in advance!

[Tommy L]

You can use a z-depth pass (a render that gives a grey-scale of your sceneindicating distance for the camera) as a mask in photoshop. You can then clone your image, tint it, then use the mask to fade it onto your original.

OR

you could do a distance blend on all your materials and over-ride the farther materials with a slightly more blue tone. I havnt tried this, it just occurred to me whilst typing the first answer....

Best done in post with the z-depth pass I think.