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brush step value controlled by pressure

Posted: 12 Jun 2012, 10:24
by schwarzgrau
I played a bit with the brush settings and thought it would be great If I could control the step value by pressure, rotation etc. of my stylus.

Re: brush step value controlled by pressure

Posted: 12 Jun 2012, 11:46
by Fabrice
ok, it makes sense. But I'm not sure we can do it easily.

Re: brush step value controlled by pressure

Posted: 12 Jun 2012, 12:03
by schwarzgrau
ya, if I think about how to "tell" the brush IN the line how much space he must leave empty it gets complicated. I'm happy if you considerate it, cause it seems really handy sometimes.

Re: brush step value controlled by pressure

Posted: 13 Jun 2012, 09:14
by Fabrice
schwarzgrau wrote:ya, if I think about how to "tell" the brush IN the line how much space he must leave empty it gets complicated. I'm happy if you considerate it, cause it seems really handy sometimes.
Can you post a screenshot or give an exemple ? I'm interested.

Re: brush step value controlled by pressure

Posted: 13 Jun 2012, 18:01
by schwarzgrau
Of course. I try to create a ball-pen brush. Therefore I drew some lines, with varying pressure, on rough paper.
ball-pen lines on rough paper
ball-pen lines on rough paper
If you look closely on the lines with low pressure you can see, there are no more lines, just dots.
Till now my brush is just a rough test. Just the HB Pencil by Peter Wassink, with some values slightly changed.
A rough test of a ball pen
A rough test of a ball pen

Re: brush step value controlled by pressure

Posted: 13 Jun 2012, 18:31
by Fabrice
this is very interesting.
Maybe can we do something with the animbrushes to imitate the first image results, but yes, your request make sense for the future tools improvements.

Re: brush step value controlled by pressure

Posted: 13 Jun 2012, 18:46
by schwarzgrau
ah of course. I could make an animbrush with some empty spaces at the end and link it to the pressure. Nice tip, thank you.

Re: brush step value controlled by pressure

Posted: 14 Jun 2012, 16:46
by Fabrice
feel free to share your tool in the content-sharing section, if you think it's a nice one. :)

Re: brush step value controlled by pressure

Posted: 14 Jun 2012, 22:17
by schwarzgrau
Of course I will!

Re: brush step value controlled by pressure

Posted: 31 Aug 2012, 00:00
by schwarzgrau
Recently I played around with the dotted line. I used no AntiAliasing to give it a "pixelish" look. I'm already happy, what you can achieve with that, but again it would be great to have more control over it, by controlling the steps of the dotted line.
punktlinien2.jpg
pixellinien5.gif
pixellinien5.gif (11.89 KiB) Viewed 30730 times

Re: brush step value controlled by pressure

Posted: 31 Aug 2012, 06:40
by Eric Scholl
You can use a custom brush for this.
Just make a dot with your tool and cut it to make a custom brush, then you can play with any parameters you want, even the step.

Re: brush step value controlled by pressure

Posted: 31 Aug 2012, 09:00
by Peter Wassink
brainwave!...

(i have no time now to test it but i think this could work... at least have some interesting results)

if you make a custom brush consisting of a animated dot

and the animation consists of the dot moving away from its handle
then when you set angle to direction you could control step while drawing by connecting animation to pressure
so for instance when you press harder the dot moves closer to the cursor and when you press light the dot trails behind increasing the step.

you could also make a variation in which more dots will be appearing from the handle, thus increasing the dot density for that part of the pressure range

Re: brush step value controlled by pressure

Posted: 31 Aug 2012, 10:39
by schwarzgrau
Eric Scholl wrote:You can use a custom brush for this.
Just make a dot with your tool and cut it to make a custom brush, then you can play with any parameters you want, even the step.
But unfortunately I can't control the step value. If you use the dotted line it seems to be controlled by the speed.


Peter Wassink wrote:if you make a custom brush consisting of a animated dot
and the animation consists of the dot moving away from its handle
then when you set angle to direction you could control step while drawing by connecting animation to pressure
so for instance when you press harder the dot moves closer to the cursor and when you press light the dot trails behind increasing the step.
I'll try that. If I get some interesting results I'll post them here.

Re: brush step value controlled by pressure

Posted: 03 Sep 2012, 18:15
by schwarzgrau
Unfortunately Erics idea doesn't seem to work like I and maybe him, expected. The spacing between the points doesn't change. It's a "normal" line, just a few pixels behind the cursor.

Re: brush step value controlled by pressure

Posted: 03 Sep 2012, 18:26
by slowtiger
Just tested this:
Create an animation with a simple dot which is at the same position, one frame a dot, next frame empty, repeat. Make the instances successively longer so you get something like this:
dot dot 1 dot 2 dot 3 dot 4 dot 5 dot 6 ... (the number indicates empty frames).
Transform the instances into empty frames. Make this an AnimBrush. Set Animation to Pressure and Invert. Draw.