> "jhu" <nomail@nomail> wrote:
>> Here's a the same image with some post-processing:
> 
> That's a really excellent before-and-after example-- and it shows how
> 'real-world' defects can make a render look natural rather than 'unnaturally'
> pristine.
> 
> Old movies have a particular 'look'-- much of which comes from the film grain:
> sort of like a small bit of random noise (with 24 or 25 such images flashing by
> in one second.)
> 

That's a case where crand and jitter can be used in an animation.
I wonder, given that crand darken random pixels, what if one use 
something like "crand -0.1" on a dark area. Will it lighten random 
pixels instead?

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