Can I get help?

[사가29604110l116]

I tried to imitate a halftone effect like the eye on the left, but it ended up with black spots like the result on the right and ended up in a very different shape. Is there a way?

[Ton Frederiks]

Photoshop creates those rasterdots.

[사가29604110l116]

Thank you for your response! But I'm worried that it's not a vector when I work in Photoshop..

[Ton Frederiks]

Yes, I misunderstood and thought you were talking about the way rhe rasterdots were different in your example.

Autotrace can do a good job when the image has sufficient resolution.

Here is the difference between Illustrator dots (left) and Photoshop dots:

[Mike_Gondek · Accepted solution]

First lets confirm am understanding your question correctly.

Looks to me like you are desiring to fil the dots group with a gradient from light purple to dark purple, but instead are getting all the dots filed with dark purple. That does not match the example on left where the dot size varies more to give the idea of a gradient getting darker at the top right.

I would remove all groups and fiulss adn mask. Then make a group of teh dots filed with none. Add a gradient at the group level. Wil be much quicker as your computer having a gradietn annotator for each dot will slow your computer.

[사가29604110l116]

It could have been cumbersome
but thank you so much for explaining it in such detail..

thank you so much
I salute you
thank you for your kindness.

[Monika Gause · Accepted solution]

Make two rows of dots.

Group each of them

Object > Blend > Make

Double click the blend tool

Make a clipping mask

Like this?

https://youtu.be/B2so6LSDO_w 

[사가29604110l116]

OMG! 
Did you make the video yourself?
I'm sorry to bother you because of me
what you told me was a great help
thank you for your kindness.

[Monika Gause]

You're welcome and I'm glad I could help you. If you want to further experiment with this you can apply different colors to the circles and see if this is useful for you.

[jdanek]

That is actually a radial gradient.  Not sure what size you are working at, but my approach is a little old school.  In Illustrator, create a circle, say 2.5" in diameter.  For your fill, use the radial gradient using black & white.  Set the black for approximately 80-85%, the white to around 20%.  Use the gradient tool to adjust the fill to go the way it appears in your sample ( sorry, offline so cannot show you screenshots ).  Open the gradient in Photoshop at 150ppi grayscale.  Use image > convert > 1-bit > halftone > shape = round > frequency around 25 LPi ( lines per inch ) > save as .tif > place in Illustrator and paint it purple over a light purple circle 2.5".  

[Bobby Henderson]

The easiest and most clean way to create vector halftone effects like that in Adobe Illustrator is by using Astute Graphics' Phantasm plugin.

[사가29604110l116]

thank you! When I looked into it, I found that it had a variety of functions.

[Bobby Henderson]

It's a pretty cool plugin.

[jdanek]

Illustrator used to create vector halftones, it would be a great tool if the geniuses brought it back.  Otherwise, it will require a third-party plug-in to achieve.  The gradient is set to "radial" to add to the illusion of roundness.  My 1-bit halftone is something that possibly could be traced, thereby converting it ( the file ) back to vector.

[사가29604110l116]

Thanks for the advice. It helped me a lot.