A tool to make dry streams?

gnoop

Something like that.  I mean in a depth map .   Is there a cool modern solution? Kind of stream simulation or something?

Obscura

Substance Designer

gnoop

Obscura said:

Substance Designer

Do you have any examples?  I have a feeling it's never going to be quite realistic there without  complex particle simulation

Eric Chadwick

I would use World Machine, hydraulic erosion.

Obscura

Eric Chadwick said:

I would use World Machine, hydraulic erosion.

I would love to see how would that look like. 

gnoop

I tried World Machine . Maybe haven't dug it deep enough but what I get is rather smooth blurry something working only on steep mountain sides and looking nothing like a river or a stream.    

I actually did it years ago with now defunct soft Geocontrol.  Couldn't now run it even with winXP compatibility mode.    It had a special "river" tool that could make it pretty nicely without much of a user input.   Couldn't find anything close to it in World machine.

On youtube I saw a few realtime simulation  done on

GPU as a research projects . Sometimes they does look promising. 

Eric Chadwick

Been awhile since I used it, but I would change the hardness of the landmass, and decrease elevation. Look for the Grand Canyon examples.

sacboi

There's also World Creator for Unity:

https://www.youtube.com/watch?v=tL8V7wzGoVM

...looks fairly straightforward generating roads/rivers and reading documentation for recent feature updates which seems to support hydraulic erosion:

https://bitethebytes.freshdesk.com/support/solutions/articles/44001676329-world-creator-2-2-0f1-2019-05-16-

EDIT:

Known Issues:

"Memory issues for resolutions above 4096 x 4096 when using the Adv. Erosion filters and those utilizing the new Simulation Filters including the new Flow map system."

gnoop

Eric Chadwick said:

Been awhile since I used it, but I would change the hardness of the landmass, and decrease elevation. Look for the Grand Canyon examples.

Thanks for the advice Eric,    I think I need to dig WM a bit extra.

As of World Creator I bought it couple years ago just because it's what Geocontrol evolved into.  Surprisingly it has nothing like old Geocontrol river tool.    And this one in the video lets you make a kind of water river with banks  but nothing like old dried out  stream  through sand/clay type of soil .   They have a water simulation tab but it also working noting like that, rather  like a in game low res  water simulation.

Eric Chadwick

For example
https://www.world-machine.com/blog/?p=567

poopipe

I've had good feedback on gaea from our terrain artists,  mainly around speed and ease of use over worldmachine. 


I'd use designer tbh.  Given a flow map you could produce some pretty plausible results

gnoop

Thanks Eric for the picture and link.   Looks nice indeed but I want the main river stream separating into to multiple smaller streams in turns   and  intertwining each other  with a bit of real physics hint .    Like a real stream changing its course sometimes  through  its sandy bed.    

gnoop

poopipe said:

I've had good feedback on gaea from our terrain artists,  mainly around speed and ease of use over worldmachine. 


I'd use designer tbh.  Given a flow map you could produce some pretty plausible results

Thanks poopipe.   The soft looks really promising  in many regards.  I have a question.   Why when I try to output in higher resolution it seems  like doing kind of irregular tiling  instead of doing really more hires image?   Is it supposed that way?