monks   
Guild Adept
Gracious Donor

Hi Monks! I just got your message on my 1978 map. Yup, I was heavily-influenced by Tolkein's map of Middle Earth. I drew things pretty much the way he did, only less skillfully. I'm still using this map today, although the locus of my current campaign is one map south as well as the map west of the one south, if you can follow my tortured explanation. :-D

thanks for the vote!

Heh, cheers fellas- just noticed the notifications. ...almost dead now haha

I'll add my happy b-day wishes as well, man.

Happy Birthday

Happy Birthday!

Volume 3. Ah, yes. I noticed the basin fill was crucial to it, because the results are wildly different without it.
It produces great results but it doesn't play nice with my model because I have river beds defined, and they get filled in automatically it seems - with the default settings you used in the tut anyway. Having said that, it does bare a good resemblance to what the rivers should be, so maybe it can't be filling in all of the river beds.
Maybe it prefers to flow across the filled basins, rather than unfilled areas?
One thing I noticed is that it insisted on flowing in a certain direction, even after I put small hills in it's way to guide it. It actually went through the hills. Maybe the noise was instrumental in that. I did keep it to a minimum- 0.3%. Maybe if the hills were bigger that would change.
Wilbur never ceases to surprise me though. It's as good as most of the software I use, and better than lots of commercial stuff on the net.

Did you mean Fun With Wilbur Volume 3 or Fun With Wilbur Volume 5?

The river finding thingy in Wilbur does a flow computation across the surface and then thresholds that flow to get the "rivers". The resulting images should be pixel-exact. However, any pits in the surface (even single-pixels ones) will result in in correct flow computation because Wilbur doesn't try to run a fluid over the surface (which would fill in the pits and still give rivers), but just calculates the flow field.

The Basin Fill operation in Wilbur is important for the overall appearance of the surface because it fills in all the little pits, typically before users run the flow computation.