water and rocks

Started by Dune, January 18, 2021, 01:57:18 AM

Previous topic - Next topic

Dune

As the title says, a study of water and rocks. The water is a bit course, as I didn't raise the subdiv settings. Rocks are not good enough yet, though. Some nasty bits.

WAS

Wow, so this setup really does make a difference in a real scene. The contrast between water and the wet rocks is nice. Looking forward to seeing where this goes.

Dune

I saw that you had a similar setup as I had made for the reflection mask. It's pretty simple, actually, but the tricky thing is indeed the fact that white displaces a wave out of it's own white space, so to speak. So you have to stretch Y and adapt animation variables. I stretched by 5x only, which was sufficient. But it does work nicely indeed.
I also warped the foam a bit by the rocks.

WAS

Yeah it seemed really straight forward with my initial thought and was puzzled by results for a while. I tried some function approaches but without being able to target an asset like the water plane, its hopeless as those key functions will always derive from the planet id anything is linking to it

DocCharly65

That's a nice study!

I don't have the eyes for the details you criticize yourself. The only thing I could mention is that the foam on the water could have a more detailed structure. Or you want the water look like a long exposure image then I guess  the waves would be extremely smoothed and stretched in the direction of flow and overall quite blurry.

Dune

Yes, the foam is just simply white. I have some foam setups with half translucent, displaced bubbles and all, but they take an awful long time to render, so I don't use them for studies. This was just meant a test to make a wave dependent altitude mask to rule out underwater reflection of rocks.

Hannes

Amazing!!!! Nevertheless I have the impression, that the wet areas of the stones should be a little darker?

Dune

I darkened to 0.75, but maybe a little more can do no harm. Here's another test, still without water (13mins). You can clearly see the mask working.

Hannes

Great!! Of course the reflection brightens up the rocks again from this angle, so I guess it's OK.

Dune

And with water, render time 2 hours longer, with subdiv set at 0.5. Which btw isn't much different from 0.25. At least 0.75 would be better.

N-drju

I think the (under)water color was better in the first example. Sort of a soft, dark sandy surface.
"This year - a factory of semiconductors. Next year - a factory of whole conductors!"

Dune


RichTwo

It's far better than anything I could do like this.  But I also like the original better even if not perfect.
They're all wasted!

DocCharly65

Quote from: RichTwo on January 19, 2021, 03:03:23 PMIt's far better than anything I could do like this.
I absolutely echo this.

I like the stony ground :)