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View Full Version : What is the Slickest PS Brush Possible?

jfrancis
June 6th, 2009, 01:34 AM
I'm wondering how far you can push the PS brushes - especially with a dual brush and the right blend mode.

I'm trying to see if I can rig up a brush that has more bristles the harder you push. Not bigger ones in a bigger footprint. The same footprint. but more bristles in contact with the canvas.

I'm thinking a random scattering of dots getting dimmer as they get away from the brush center - combined with a dual brush, maybe consisting of a radial grad - combined with an overlay blend mode in the dual brush that drives the different grays to white or to black in different quantities depending on pressure.

Does that make any sense?

I don't need this brush, so I don't need a workaround or solution to a problem. I just want to see what the slickest brush possible is to make.

Any ideas? Any such brushes already in existence?
jfrancis
June 13th, 2009, 03:16 AM
Something with this sort of behavior changing mechanism - but in a pressure sensitive brush...

http://www.digitalartform.com/archives/2009/06/custom_halftone.html
jfrancis
June 21st, 2009, 04:10 PM
http://www.digitalartform.com/assets/Hard-Mix-Dual-Brush.jpg

Here's my stab at it. The dual brush uses the hard mix blend mode to put more bristles down when subjected to more pressure.

http://www.digitalartform.com/archives/2009/06/photoshop_dual.html
Elwell
June 21st, 2009, 04:15 PM
On a related note, is it possible to have brush size vary inversely with pressure? What I'm imagining is a brush that gets smaller and darker the harder you push.
jfrancis
June 21st, 2009, 04:33 PM
On a related note, is it possible to have brush size vary inversely with pressure? What I'm imagining is a brush that gets smaller and darker the harder you push.

An interesting question. I will play with it.

I imagine it will involve radial grads from black to white in some form, combined with hard mix.

-- although hard mix forces hi contrast, so it may do the 'smaller' part, but not the 'darker' part.
jfrancis
June 21st, 2009, 05:03 PM
http://img.photobucket.com/albums/v228/jfrancis/junk4/junk001.jpg

Not having much luck capturing those inverse behaviors in PS.