River

[mhaze]

Great!  The colours are so much better - the road now looks as though it belongs!

[TheBadger]

Sun set one is striking!

[Dune]

I abandoned the previous setup for a new one (having learned one or two things), where I tried to get the river to 'erode' and 'deposit' in a more natural way. Base needs some work, as the far river is drained by too large X to scalar northern hemisphere morenes.

[AP]

That is a good more realistic river concerning the shore morphology.

[AndyWelder]

I wonder how you manage to fit the water object into the bed over such a large distance; if I try this the river disappears and leaves a dry bed or it spills over the bed and floods the land. But I figure from the

far river is drained by too large X to scalar

part there are blue nodes  involved.

[KyL]

This last update looks really nice Dune!

Very natural behavior, looking forward to it...

[Dune]

You have to use simple shapes that overlap eachother, the river area (banks and such) being a wider SSS than the river itself. Then warp both, and if needed transform each warped SSS (move or stretch, or whatever) or warp again to make a difference between the total river area and the river itself. The blue nodes I mention were for the high northern land, but I dropped that and used a huge oval SSS as well, worked better.

River area is claylike, so no bright yellow-white dunes any longer. High ground on right is poor heath, and grass. Southern part, beyond river is wet and boggy.

[DocCharly65]

I like this new river bed very much!

It's very interesting to follow the project growing or changing.

It would be interesting to see somthing complicated like the river bed as a "SSS tutorial"... untill now I just tried easy and really simple shape shaders like rectangular and combinations of rectengulars in my "SilentHill street" . did I miss an interesting post somewhere?

[mhaze]

Nice work - look forward to the finished work.

[Kadri]

This will be nice too i am sure but curious why you abandoned the other one Ulco?

[Dune]

@Kadri; I learned from a few archeaologists that river areas and beyond were different in terms of soil and layout, and vegetation. So it wasn't really correct in that sense.

[Kadri]

I see.Thanks

[masonspappy]

I like this, the topography is much more what I envision around a slow waterway.

[Dune]

@Nils: probably; I've posted a basic river setup a year ago or something, but basically it's simple; use a warp shader with the SSS as input and a vector displacement as function and feed a PF into the function input of the vdisp shader. For warp in X direction, set the scale of X a bit bigger for more even width of the river, I usually set Y scale at 1000, just to be sure the fractal doesn't change over height (especially for roads). Vdisp shader X at 1, rest at 0, offset of X at -0.5, so the basic line stays centered. And then you can play with PF settings, and add all sorts of variations (extra PF+vdisp). You can even (don't tell anyone  ) use this as a mask for a surface shader, give a nice white color and use the breakup for some nice effects (breaking op the [grey] sides of the warped soft SSS). It's a huge playground 

[Dune]

It's kind of done, just have to check with the experts. Reduced for posting, though. Second image is the area it's based upon.