Spread noise

Support Compositing and Post Processing
1

I’m looking for a way to recreate the ‘spread noise’ effect from Gimp in Blender.
It basically moves pixels around randomly, so only edges get noise.

Can anyone help me get started?

Here is an example:

Without spread noise

BEFORE
BEFORE1025×1080 13.9 KB

With spread noise

after
after1025×1080 36.7 KB

2

I am looking for something similar. For when i create masks procedural-ly based on object data. I need a way to add noise just at the high contrast edge to add variation.

This would be of huge help.

3

fssf
fssf1774×876 249 KB

There is a way to use noise (not perfect)

2 Likes
4

Nice… i wonder why yours has this “edge” at the bottom right … (me using 3.6.10) …??

SpreadTheNoise
SpreadTheNoise1200×800 85.8 KB

5

fsa
fsa834×769 208 KB

This is a false effect.
The effect looks similar to Motion blur. :sweat_smile: (blender 4.1.1)

fsfwetr
fsfwetr1695×858 293 KB

This configuration shows the desired results.