Gradient to halftone

[Jkdaw]

I am coming to affinity from Corel , where you can do a gradient fill and convert it to halftone. In Affinity I can't replicate this. I create a greyscale gradient , add the halftone effect and nothing happens! Can someone help?

[GarryP]

Seems to work okay for me, see attached image and document, but I’m not entirely sure what you want.
Can you explain more about what you are trying to achieve?

halftone-on-gradient.afphoto

[Jkdaw]

That is what I am trying to achieve ! What steps did you take? I must be doing it wrong. Also, if you paint a gradient, with an airbrush for instance, does that work for you too? I'm not at my computer atm but will look at the doc later.

[GarryP]

All I did was – in Photo – draw a Rectangle, add a gradient fill to the rectangle using the Gradient Tool, and then add a Live Halftone Filter.
I’m not sure what you mean by “paint a gradient, with an airbrush” but the Halftone Filter should work on pretty much anything as long as it’s applied properly (it’s at the correct place on the layer stack and it’s not been ‘messed about with’ in some way).

[Jkdaw]

Thanks for your reply , I will try again.

[GarryP]

You’re welcome.
If you can’t get it to work then uploading an example document usually helps.

[Jkdaw]

Okay, so if I create a rectangle , fill it with a gradient and and a halftone fx it works. But if I paint a gradient and add the halftone fx , nothing happens.

halftone problem.afphoto

[Old Bruce]

You have black on transparent for your "painted gradient".  Pretty much nothing happens with Black and White, they are full tones, not half tones. Make a pixel layer and use something like grey then use the Halftone.

[lepr]

2 hours ago, Jkdaw said:

Okay, so if I create a rectangle , fill it with a gradient and and a halftone fx it works. But if I paint a gradient and add the halftone fx , nothing happens.

halftone problem.afphoto 711.59 kB · 4 downloads

 

Group your semi-transparent black painted layer with a white background object (a vector Rectangle, for example) and then nest the halftone filter in the Group instead of nesting it in the painted layer.

[loukash]

2 hours ago, Jkdaw said:

But if I paint a gradient and add the halftone fx , nothing happens.

It needs a solid fill background.
For example, group the painting with a white Fill layer and apply the filter to the group:

[Jkdaw]

Great, thanks for all the help. I have other issues with the HT fx as well , such as not being able to set arbitrary angles of the dots and the way it generates a kind of outline of dots around the edge of the object even if the edge is pure white. But I don't expect there is a workaround for these things.

[lacerto]

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[Jkdaw]

Great, many thanks for the info! Hopefully they fix that bug soon, and add mono as an option too!