JPG exporting error/bug?

[Tyves]

please have a look at my attachment?
It's just a screenshot directly from export window in publisher.
in the background you can see the original design...
the final exported jpg looks like the preview of the export preview window. 🤷🏻‍♂️

there's any kind of extra noise, or brightness where shouldn't be any.

 

[walt.farrell]

If you are on Windows, and you have Hardware Acceleration (OpenCL) enabled in the application Settings, Performance, you might try disabling it to see if that resolves the problem.

[NotMyFault]

Der zoomlevel ist 17%

Bedingt durch die mipmaps Methode zur Anzeige werden feine Details wie Rauschen und Schärfe nur bei 100% zoom korrekt angezeigt.

Jede verkleinerte Darstellung liefert nur eine ungefähre Vorschau. Benutze 100% für akkurate Darstellung von Details.

[walt.farrell]

15 minutes ago, NotMyFault said:

Der zoomlevel ist 17%

I'm curious how we can tell that.

Thanks.

[v_kyr]

19 minutes ago, walt.farrell said:

I'm curious how we can tell that.

Quote

Export as graphic

...

The dialog displays a preview of what will be exported, which you can zoom and pan to inspect the effect of your choices. Resize the dialog to preview a larger area of your document at once.

...

Modifier keys

When previewing your export, the following modifier keys can be used to zoom in to areas of interest and view the results of different settings applied in the dialog:

• Hold the while scrolling (using a scroll wheel, if available) to zoom in and out of the preview.
• Hold the while scrolling (using a scroll wheel, if available) to scroll left or right.
• Press + to zoom in.
• Press - to zoom out.
• Press +1 to zoom to 100%.
• Press +0 to zoom to fit.

 

[Tyves]

it's not about the zoom level folks... as I wrote above the exported image looks the same as in the preview.
and I'm on Mac @walt.farrell @NotMyFault

[NotMyFault]

We have only one screenshot in your first post. To check what is going on we need the actual files (.afphoto and jpg).

Can you explain a bit more what you actually think is wrong. An exported file looking like the preview is what sounds correct in the first place, so I do don’t get it.

If you can’t upload here for privacy you can request a private Dropbox link from moderators.

 

[Tyves]

@NotMyFault I meant actually the preview I already uploaded... in the background you can see the "original" and in front of the pic the "preview" of how the jpg would look like before / or on the way to - exporting it... and when I export it (it doesn't matter if 17% or whatever is written there) it exactly looks like the preview. Not correct. looks like the grain or noise or whatever is overdone exported instead of slightly like in the original... hope that's more precise 😬

[Callum]

Typically what not my fault has suggested is the case with issues like this and viewing the image at 100% zoom will show the noise at the same level as the exported image. If possible could you provide the affinity project file in question so I can look into this further?

Thanks
C

[Tyves]

I attached here a zoom 100% jpg-export-preview + the normal design in the background... the same corner... both in 100% view...

to me it looks a bit as would there an internal sharpener go in action before exporting...

[NotMyFault]

There are multiple possible causes for this behavior. Again, without the actual file it is impossible to analyze.

• If you choose any resample method for export except bilinear it is expected (more general, if resample method in performance settings differs from export settings)
• using layers with deviating DPI or fractional positions
• using view quality other than „best / slowest“

The rendering in Photo can differ from export preview and export. Export preview and exported file must match (when inspected at 100%).

Try to merge visible and check if this differs from export.