Keep color noise effect while exporting

[cybertheye]

How can I export the document with color noise still existing? It seems exporting will lost most of the noise effect.

steps to reproduce the behavior:

1. new artboard/ or any other new document like A3, whatever

2. change the background color to a more obvious one. 

3. Noise to 100%

4. export the png. here I am using the default setting, which means I didn't do any change to the export options

 

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You must see the difference.

 

My question is how can I keep the effect shown on Affinity?

 

 

 

Edited April 26 by cybertheye
add more detail

[GarryP]

Welcome to the forums @cybertheye

Can you show us an example where the noise hasn’t been exported? (We would need to see both the ‘before’ and ‘after’. An example document would be useful so we can try it for ourselves.)

It’s worth noting that the noise is applied as a ‘document pixel level’ so if you have a large image the noise might not be particularly visible when viewing the exported image ‘zoomed out’ where you can’t see the image at it’s ‘real’ size, image pixel for screen pixel.

[cybertheye]

@GarryP I've just add some detail to my origin post. Thx for notice me! 

Edited April 26 by cybertheye
@helper

[GarryP]

I think you are seeing an example of what I explained in my earlier post but I can’t be totally sure from the information given.

Can you share the document?

If you don’t want to (or can’t) share the whole document, can you share a version which only contains the Artboard3 layer (and its contents, if any)?

Note 1: Full-screen (whole application UI) screenshots are usually more useful than limited-size screen-grabs. (There could be useful information that isn't contained in a limited screen-grab.)

Note 2: It’s better to provide further information by adding a new post, rather than editing a previous post, so that the discussion follows in a logical order which often helps to avoid confusion.

[thomaso]

This Colour Noise is very subtle ('by design') and varies with the effective resolution (DPI) while a lower resolution increases the visual noise. Apart from the mentioned requirement to judge/compare the effect in 100% zoom level, you can increase the noise for instance by reducing the size of the object(s) with noise -> rasterize them -> upscale them back to their initial size. (or by copying the layers into a document with lower resolution -> rasterize them -> copy them back to your actual layout.)

The smaller versions show in 100% view, the larger in 200%:

[cybertheye]

1 hour ago, GarryP said:

I think you are seeing an example of what I explained in my earlier post but I can’t be totally sure from the information given.

Can you share the document?

If you don’t want to (or can’t) share the whole document, can you share a version which only contains the Artboard3 layer (and its contents, if any)?

Note 1: Full-screen (whole application UI) screenshots are usually more useful than limited-size screen-grabs. (There could be useful information that isn't contained in a limited screen-grab.)

Note 2: It’s better to provide further information by adding a new post, rather than editing a previous post, so that the discussion follows in a logical order which often helps to avoid confusion.

It's very simple. I thought it was unnecessary lol.

And mine is Affinity V2. Sorry to forget mention that.

noise-demo.afdesign

Edited April 26 by cybertheye

[cybertheye]

1 hour ago, thomaso said:

This Colour Noise is very subtle ('by design') and varies with the effective resolution (DPI) while a lower resolution increases the visual noise. Apart from the mentioned requirement to judge/compare the effect in 100% zoom level, you can increase the noise for instance by reducing the size of the object(s) with noise -> rasterize them -> upscale them back to their initial size. (or by copying the layers into a document with lower resolution -> rasterize them -> copy them back to your actual layout.)

The smaller versions show in 100% view, the larger in 200%:

Thank you for your solution. It works to some extent. But still feel some difference. What's the term called? grainy texture? graininess? 

[thomaso]

@cybertheye, what do you want to show with your screenshot? What are the conditions for the creation of the two rectangles?

To me, the graininess (or granularity) in the two rectangles looks pretty similar, but colours and contrast are different, reducing the meaningfulness of a comparison. Actually I am not sure what exactly you want to achieve.

Alternatively, you can try Procedural Texture which offers more options than the Colour panel's Noise slider/value. Or use APhoto's Live Add Noise Filter – or a raster image with the desired grain texture as a separate overlay layer.

[walt.farrell]

4 hours ago, cybertheye said:

You must see the difference.

It's important to understand that you need to view the images at the same zoom level, and we can't tell from your screenshots if that's what you're showing. It's also important to view them in Designer (or Photo) at 100% Zoom when evaluating whether the noise is at the level you want. If you're viewing at a smaller Zoom level (< 100%) you may see misleading results. (This may also apply at Zoom levels > 100%, but I'm not sure exactly how that works.)

So I would suggest viewing at 100% Zoom in Affinity when first checking how much noise is applied. Then open the exported file in Affinity and again view it at 100% Zoom to compare how it looks.

[thomaso]

@cybertheye, in AD you can reduce the visual impact of zoom level on this grain by switching to 'Pixel view mode' to get a rasterized display of Colour Noise in AD.

Or by rasterizing the object(s) in AD.