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Thread: Photoshop brush randomizer

  1. #1
    Guild Member Meridius's Avatar
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    Question Photoshop brush randomizer

    Ok, so I was wondering about something. With Photoshop having a very nice brush-engine and all, this would be ideal to scatter buildings. Now my main problem is that if I use a brush with high spacing, I end up drawing countless copies of the same building.

    Pretty good start, but not entirely what I want. It would be ridiculously awesome to be able to select more than one brush (building), and have photoshop automatically randomize them.

    For example: I have a round brush, a triangle brush and a square brush. I select all three of them, and when I draw a line, photoshop acts as though I'm switching brushes while drawing. So I end up with a line consisting of randomly ordered triangles, squares and circles, or in our case, different kind of houses, mountains, trees or whatever. All this while acting as a single brush.

    Now I realize this is something very few painters would use, but us cartographers would love this. I've been googling myself to near exhaustion, but I cannot find any way of doing it, and I do conclude that it isn't possible. But wouldn't it be possible for a Photoshop plugin to do this? And if so, do we have people technical enough to make it happen?

    People with thoughts about how to do this here? Or people with the technical knowledge to make an awesome brush-randomizer?

  2. #2
    Professional Artist Facebook Connected Coyotemax's Avatar
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    Near as i can recall, this is part of the holy grail of city making Closest anyone's come up with so far is for PSP and Gimp which use "pipes" or "hoses" of different patterns one after the other.

    My finished maps
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    Guild Member Meridius's Avatar
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    Holy grail indeed... I would set out on a quest for it had I some programming knowledge, but unfortunately, there's none of that in my head. Perhaps I could look into GIMP for a combined use .

    It would be awesome to have in Photoshop though

  4. #4

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    It seems like what you want is this.... http://graphicssoft.about.com/librar...y/aa032999.htm
    More specifically this is the page with the plugin http://www.humansoftware.com/pages12...y/HSpsp11.html

    Looking at the price it's a bit expensive for casual use. You can make your own sprays though, so you could get it to spray buildings trees and everything else.
    Last edited by DevinNight; 03-14-2010 at 12:54 PM.

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    Guild Member Meridius's Avatar
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    Holy cow... 80 euro's O.o

    It's very expensive, but I might just buy that :S
    If only they'd have an evaluation version.

    edit: I won't buy it, enthusiasm spoke before the price truly hit . I don't have the slightest clue to if it will do what I want in a simple way.
    Last edited by Meridius; 03-14-2010 at 05:05 PM.

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    Community Leader Facebook Connected Ascension's Avatar
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    Take a look at my brushes in the Elements section. The closest thing that I've ever come up with is in there called the house brush and the thatch brush but you need some paths for it to work (that part is in my town tutorial). It basically takes a square brush tip and sets a size jitter, rotation jitter, roundness jitter, and increased spacing. The roundness jitter makes the square into random rectangles, the rotation jitter makes them all slightly differently aligned to a path, and size (of course) makes em various sizes. For convenience, the brushes and tuts are in my sig.
    If the radiance of a thousand suns was to burst at once into the sky, that would be like the splendor of the Mighty One...I am become Death, the Shatterer of worlds.
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    Guild Member Meridius's Avatar
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    Ascension, I think I know what you're getting at without even reading your tut Problem is that my next project is gong to have somewhat unusual house-shapes. Meaning, custom brush... And custom brushes don't respond well to the settings you mentioned. But thanks anyway.

    I'm currently trying GIMP, and while it's awesome that people distribute something like this for free, and I know I shouldn't complain about something like this, but coming from Photoshop, I honestly find GIMP to be highly annoying. I know it's some getting used to. Anyway, after a bit of fiddling, yes, I think I found the holy aperitif-cup... not quite a grail yet, since I can't figure out how to make brushes (image pipes) directional (if at all possible in GIMP). I do have it switching randomly from one building to another, it just paints all of them on the same axis...

    I think I'm starting to figure out why Coyotemax calls this a 'holy grail'. I'll keep you all posted on my 'quest for the Holy Grail of map-making'. Tips will be welcomed of course, but I suspect I might need to look further than GIMP and Photoshop.

  8. #8
    Community Leader Gracious Donor mearrin69's Avatar
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    Painter has or used to have an image hose as well and I think maybe Dogwaffle has something similar? I'm not sure how useful they are because, in addition to dropping randomly sized/positioned/rotated items it seems you'd also want the brush to be "smart" and not overlay the items, have them align in some fashion (along roads or something), etc. and I'm not sure either of those products can manage that bit.

    Never messed with macros/scripting in Photoshop but is something possible using that?
    M

  9. #9
    Professional Artist Carnifex's Avatar
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    Here's a test with a custom brush I did in another post:
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  10. #10
    Guild Member Meridius's Avatar
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    To be honest, this kind of result is what I'm more or less looking for, and actually something I already managed. However, I'm working on a city/town with each house consisting of several towers, connected by (rope-)bridges. So each 'house' is a tight arrangement of 3 or more separate buildings. Which makes it a wee bit harder

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