Eraser looks bad (edges not smooth enough)

[stranded]

Hey guys, how can I make eraser look better in this kind of example?

https://i.imgur.com/CLj9bqd.mp4

The edge always looks messed up, doesn't matter if I change Opacity, Flow or Hardness.

Any tips on how to make it work just like in Photoshop?

[MEB]

Hi stranded,
Welcome to Affinity Forums
Are you referring to the "posterise" effect (banding) on the brush edges? Photoshop applies dithering while we don't. There's already an improvement request filled for this but i have no idea when or if it will be implemented. Meanwhile, changing the document colour format to 16 bit may help a little (menu Document > Convert Format / ICC Profile, first dropdown).

[stranded]

Ohh that's a shame. For now I just brused that part over with the same tone of blue and it looks OK but during the export it actually does not:

In software:

After JPG export 96% quality:

[stranded]

Is there any other alternative method on how to erase backgrounds like that in Affinity Photo? @MEB

[firstdefence]

It would be easier to select the woman, refine the selection and then copy and paste her to a new layer and then add whatever background you wanted.

[stranded]

Yeah that's time consuming to make it right, how about fading out between two layers? How can I do that?

Here's how it works in Photoshop, just with one easy move:

https://imgur.com/aJ0Gl7h