Thursday, August 2, 2007

Tutorial: Making halftone dots

posted by Liz

Dots are very simple shapes, but it's not obvious how to easily create a pattern or repetition of them in Photoshop. So here's one easy way to use dots as texture without drawing them each by hand.

1. Create a new document and select the Gradient tool. Switch the document to Quick Mask mode. (See circled tools.) Drag the Gradient tool across the document in whatever direction you'd like the dots to flow. Should look something like this:



2. In the Filter menu, go to Pixelate > Color Halftone to open a dialogue box. You can choose the max. radius of the dots by changing the pixel number at the top. A smaller number will make lots of little dots and vice versa. My example uses 15.





3. Click the Quick Mask tool again to switch back to standard mode. Now you can fill in the selection with a foreground color of your choice either by pressing Option+Delete or by going to Edit > Fill.





4. Before deselecting, if you would like to fill the white space with a second color, select the inverse either from the Select menu or with Command+Shift+I.



Here's an example. This is a thumbnail from one of the elixir desktops. I cut circles out of the halftone dot pattern instead of leaving it to fill the background, but you can see how they add to the illustration.



There are other ways to implement the color halftone filter, but I just thought I'd share one easy way to make a halftone pattern.

11 comments:

Adam Merrifield said...

Nice tutorial Liz! Thanks a bunch

2Clicks said...

great tutorial! muchas gracias! :)

Anonymous said...

I always wondered how to do that! Awsome tutorial Liz! Please, keep 'em coming... :-)

Anonymous said...

Hey, i just wanted ask, i'm doing it all the same but my dots are all really coloury, how do i make them just in wo colors. Last i've used just whote background and blask brush and it turned into loots of colours. Is it with settings or what> PLS HELP i really need to know how to do this...Thx

Liz said...

To anyonymous:

Make sure you are in Quick Mask mode before you apply the color halftone filter or you will end up with many-colored dots.

I circled two tools in the step 1 picture, so you might have missed the second one. The top one is the gradient tool and the bottom one is the button that will let you edit the document in Quick Mask mode. Make sure you click both before starting.

Happy Happy Joy Joy said...

Agreed nice tutorial Liz,

Question:
I ran across and purchased a few vectors from
http://vectorstock.com/gallery/1078/
because they're clean opposed to a couple other stock sites i've purchased from. Any idea how this is being accomplished? Im getting the same results like the norm with irregular shapes? So far a couple of these vectors helped us out with a few customers wanting halftone dots on their cars. Lol, yes it sells quite well.

Thanks and I look forward to anyones reply.

Ted

Mosscow said...

Hi Liz,

Thanks for the cool tutorial; I'm doing exactly as you're doing, with the same dimensions of canvas, size of dot, etc. (and using 72 dpi - I'm assuming your's is similar?) and I can't seem to make my dots bunch up at the bottom like yours...

My dots always have space between them, never to meet in infinity no matter how many times I try it, but yours do this cool thing where they huddle together with little gaps here and there, like the space between clenched teeth... Any suggestions on how I can replicate that?

Thanks

Liz said...

Mosscow,

I am using a file set at 72 dpi, approximately 400x350px.

It's a little hard to figure out why yours is coming out differently without seeing it, but maybe some of these ideas will help.

First, make sure you follow all the steps (I know that's kind of a no-brainer, but it's best to start by double-checking): enter quick mask mode, draw gradient, set halftone filter, return to standard mode, fill color.

Beyond that, try playing with the two steps that are adjustable: the gradient and the filter.

Make sure you're dragging the gradient tool all the way from one edge to another.

And if your document is bigger than mine, you may want to increase the radius of the halftone filter.

I hope that helps.

Mosscow said...

Ok -

Thanks for the reply Liz; could you do me a favor and describe your mask settings?

Mode:
Opacity:

and if you have these boxes checked:

Reverse
Dither
Transparency

Thanks!

Bramick said...

TED,

Follow the same technique using masks to create the shape you want. Then you'll have crisp circle selections. From there you have to save the selection as working path, then save path. (from the paths tab).
The file/export paths to illustrator.

That's the best I've come up with so far.

To make the shapes different sizes and seem to flow in and out like fabric I'd suggest playing with mask idea above then do an advanced section transformation. Hopefully that'll work. Then again file/export paths to illustrator.

Ravi said...

THIS IS REALLY AMAZING THANKS A TON FOR POST AWESOME PHOTOSHOP TRICKS IT HELPED ME A LOT, LOOKING FORWARD FOR MORE GREAT TRICKS ON PHOTOSHOP AND ILLUSTRATOR

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