White halftone doesn't work

[Pamplemuss]

Hi there,

I don't really understand what I'm doing wrong with the Color Halftone effect, but there questions, maybe you might help:

1) I cannot noway make a WHITE haltone -- it never appears even though it is there in the Appearance window.

2) Any other colors are visible, but arent's right -- I made an orange color, but I get then this red with black points inside and also the white background (the gradient is from orange to transparent). 

I guess this is RGB, since on the CMYK the color is right, but the WHITE issue is always there, both on RGB and CMYK.

Is it a bug or I just have to adjust something?

Illustrator CC 2018, windows 10, graphic card 3320M. Thanks!

[Monika Gause · Accepted solution]

The halftone filer won't do that with white. Producing a white halftone in print would mean to use spot color, but the halftone effect doesn't do spot colors.

What you can do:

- make a halftone in Photoshop. Convert to bitmap with halftone raster. Place in Illustrator and apply white.

- use the plugin Phantasm

[Pamplemuss]

Thank you, I'll try !

[Ton Frederiks]

Another way, without Photoshop and editable:

Apply Rasterize  effect on the gradient as grayscale and at a high resolution.

Apply the Color Halftone effect.

Put the result above a white rectangle.

Select both and use Make Mask from the Transparency panel.

[Pamplemuss]

Merci beaucoup!! That's easy and quick

[Ton Frederiks]

Good to hear that worked for you.