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How do I avoid these fades on the edges when transforming using the move tool and handles?


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I get what looks like these white fades on the edge when transforming after selecting using the marquee tool. The fades are wider the further I drag the transform.

I'm on Affinity Photo 1.10.8 on a MacBook Air M2 Sonoma 14.4.1

Thanks!

 

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Welcome to the forums @justmull

If it’s what I think it is, as far as I know, you can’t, not without duplicating the selected pixels or doing other manual work.

It happens because the selected pixels are stretched when you resize them to ‘fill’ a larger area – the transparency increases the more the pixels are stretched, like when you stretch a rubber band and it becomes a lighter colour because there’s less material where it’s been stretched.

This has come up in the forums before but I believe this is expected behaviour.

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11 hours ago, GarryP said:

Welcome to the forums @justmull

If it’s what I think it is, as far as I know, you can’t, not without duplicating the selected pixels or doing other manual work.

It happens because the selected pixels are stretched when you resize them to ‘fill’ a larger area – the transparency increases the more the pixels are stretched, like when you stretch a rubber band and it becomes a lighter colour because there’s less material where it’s been stretched.

This has come up in the forums before but I believe this is expected behaviour.

Thanks for the welcome! I don't think this is what is happening as it only occurs at the edges of the transform - to stay with the analogy of the rubber band, the rubber band stretches and becomes a lighter colour uniformly. In this case it seems to be just applying a fade at the edges.

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5 hours ago, justmull said:

Wow thankyou @lepr! This worked perfectly - I'll have to dig in and see what it actually does.

You're welcome!

It temporarily disables editing of R, G and B, so only alpha is affected when it applies an opaque colour fill.

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I’ve attached a short video which shows the issue a little bit more easily.

As far as I’m aware it’s not possible to rectify this without extra work done after the stretch.

But I’d be happy to be proved wrong if someone can share a workflow which ‘fixes’ this at the time of stretching rather than afterwards, especially if it worked on pixel selections which weren’t solid fills.

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