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RIVERS, argh! How to question

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I want believable rivers on a map I am making in PDN. I don't know of a way to get good, squiggly, tapering rivers in the right places that don't look like they were plunked down by a chimpanzee. Your suggestions or, heaven forfend, a tutorial, would be deeply appreciated. Virtual cookies, or beer, or whatever. I make a mean virtual Brandy Alexander... :P

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one thing that does come to mind is possibly using the lightning plugin - to create the squiggly lines , recolouring the bolts to blue and using layer/rotate-zoom or perspective to add a "taper"



SARCASM- Just one of the many services I offer free to the public.

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This thread at the Cartographer's Guild is where I'm posting the work in progress.

Mountnman, I did fiddle with the lightning plugin somewhat last night, but it isn't *quite* right. It's really close, but the shapes are off no matter how I adjust the settings. And then I tried quad/reshape or whatever it's called, and got some interesting distortions with *some* taper, but again, not really what I was looking for.

Sarkut, if we keep this up the holiday police will come after us. International Talk Like A Pirate Day isn't until September. Matey. :D

Anyway, if you follow the thread over yonder, the most recent image I have was done by flattening my basic "land" layers into a .png, loading that into a terrain thingy called Wilbur, and using it to calculate where water *would* flow, hence where the valleys and rivers would form. But I still run into a problem: even though I can bring that back over into PDN, and I know how to bring it in as a layer in my current map, I can't figure out a decent way to get those rivers in place on my land without hand-tracing them all (in which case they still look, well, painted on) - and I'd prefer to be able to do the whole thing in PDN anyway, rather than rely on some other program to draw them in for me. It's kind of a thing with me, being over on a forum dominated by GIMP-users - no matter how friendly and helpful they've all been. ;) I don't mind having Wilbur do the calculations if I have to, but I'd rather be able to make PDN do the drawing rather than borrowing Wilbur's picture, if that makes sense.

Anyway, I really appreciate you both taking a look at this for me. I'll try just about any suggestion you offer, and let you know how it goes.



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Yellowman, two things:

1. You. Are. A. GENIUS. Oh my goodness, this looks freaking *perfect*! I will try it as soon as my kid is asleep and let you know how it goes. It looks like you need to start with something roughly half the eventual length of the system, is that about right?

2. If you're Yellowman, why is your avatar red? :D

Thank you, thank you, thank you!

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The problem with Smudge tool is that you can't see the background in it, so yes you can trace the major path of river and taper the ends with Smudge, you can add some tiny branches as with same way.

To trace the path of the river: add a new layer,fill it with white color, set the blend mode to Multiply and use the paintbrush to trace the lines from the map then complete it in Smudge, use medium brush for best result.

EDIT, and about the avatar, I am celebrating the Valentine's season :D

Edited by yellowman
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