I’m a new user of Acorn. I’ve just started learning and experimenting with the editor’s filters.
There’s one in particular, the Simple Film Grain, which has two parameters: Blend and Seed.
Unfortunately there’s no explanation of what altering these values actually does, although it is possible to have an intuition by just playing with the sliders. Does anybody have an idea?
OK, after some testing I have probably understood what Seed is. My guess is that it’s just a parameter used to reshuffle the distribution of the grains, while leaving their density intact. Essentially like the seed of a random generator.
Blend is more about the size of the grains, am I right?
You’re correct on what seed does. It’s the seed for the random generator (you want that to be the same between file openings, so that the random distribution doesn’t change every time you open your image).
Blend isn’t about the size of the grains, rather it’s how the generated image is blended on top of the image being passed to the filter. It’s exactly the same as the Blending: option for layers.