New to Affinity -Two color halftone effect

[jrocker1967]

Hello All,

  I'm a former Freehand user (very proficient),..then Illustrator (never proficient!), and a bit of Photoshop as well (basic stuff, really),..and I'm hoping someone here can help me. So far,..I really love the Affinity software, but there are some things I cannot figure out or find the info on how to do what it is I'm trying to do. I want to do retro/psychedelic designs,..and I can't figure out for the life of me how I can do a two color halftone effect like the pic enclosed. I want to be able to pick the two colors like the orange and the pink as seen in the attached example, and be able to change them to find the two colors that work best for a particular design. I can't seem to be able to change the color of the positive part of the halftone from black -and also have it's negative portion be transparent to show the second color underneath -am I making any sense? Almost like a duotone -but where I can have two colors that are not from the same hue. The example I've attached should give you an idea of what I want to do. It's a Victor Moscoso poster, and he used two opposite colors on halftones like this a lot. Can anyone recommend how I would go about this? I would appreciate it very much. JH

[lacerto]

Obsolete.

[Fixx]

Halftone filter can do this. It results though greyscale (or b&w) image so you have to colorize white and black to orange and red. Takes some fiddling with fill layers and blend modes. Surely there are other means for colorizing too. 

Text/glasses have to be separate layer as it is not halftoned.

[lacerto]

Obsolete.

[Komatös]

Have a look here:

 

 

[GarryP]

Here’s a very quick attempt at what I think you want to do for the background – image and video attached.
The settings used in each filter/adjustment will need to be decided upon as necessary for your original image.

[Komatös]

With brushes you can achieve the half-tone effect more variably.

[jrocker1967]

Wow! Thanks everyone,..I will see which option works for me..I'm still in the beginning stages of learning Affinity,..but I appreciate the replies -thank you again! JH

[Komatös]

You are welcome!

[lacerto]

Obsolete.

[jrocker1967]

Hey Everyone 

I'd like to thank you all for taking the time to help me. It turns out that I found a plug-in that can really help with what I'm trying to accomplish,..so I went ahead and purchased it. It's called "Halftone Processor" from The Vector lab,..and it seems like an easier way to do this type of effect. The link is below for anyone who's interested. Thank You again! JH

https://thevectorlab.com/products/halftone-processor?variant=40048092151893

and here's a video link showing what it can do:

 

Edited July 28, 2022 by jrocker1967
Addition

[TrentL]

I think the fastest way is to add a Gradient Map (unless I am missing some subtle point of the question):