Almost no noise with higher resolution

[RVRS]

Hi, 

I've been looking for a similar topic, but weren't able to find one. 
So, I have this problem. My arts main feature is noise, and I also work in high resolutions. All my noise is cranked up to 11 but when exporting it, to get it ready for printing e.g., the noise is super fine and almost nonexistent. I tried to rasterize it before export, but that somehow messes up gradients. If I export it in a smaller resolution like "800x800" the noise is just right. 

Is there any trick to keep the noise as coarse as possible with higher resolutions? I'm working with Affinity Suit 2 and this is in Designer.

Thanks and greetings

RVRS

Edited February 8, 2023 by RVRS

[NotMyFault]

You need to use zoom level 100% when inspecting noise. Otherwise, when zoomed out, the effect looks far stronger.

[RVRS]

Thank you, for your reply. 

You are right. But is there any way to increase the grain? Because even if I add multiple layers, there's no change in the graining.
Or I'm maybe missing something. 

[Old Bruce]

4 minutes ago, RVRS said:

even if I add multiple layers, there's no change in the graining.
Or I'm maybe missing something. 

Try using different blend modes (on a white rectangle), multiply for example.

[loukash]

41 minutes ago, RVRS said:

is there any way to increase the grain?

For example something like this?

 

[NotMyFault]

58 minutes ago, RVRS said:

Thank you, for your reply. 

You are right. But is there any way to increase the grain? Because even if I add multiple layers, there's no change in the graining.
Or I'm maybe missing something. 

The standard Noise filter in Affinity produces 1px sized noise. It seems you are looking for larger noise like grainy analog slides.

If you need more prominent noise, you can use several other methods e.g. like @loukash explained, or use procedural texture filter which has other types of noise.

e.g.

1. create rectangle of 1/10 document size,
2. fill with gray and add color noise
3. rasterize
4. increase size 10x with move tool. The noise is larger and more visible.
5. experiment with blend modes, e.g. overlay.