Arctic terrain - glittering snow shader

Started by Shigawire, December 20, 2015, 05:07:43 PM

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bobbystahr

Quote from: Tangled-Universe on December 21, 2015, 08:40:27 AM
Ha ok, seems you know me better than the other way around ;)

a Dune the novel fan for sure....
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist


WAS

Quote from: bobbystahr on December 21, 2015, 09:22:20 AM
Quote from: Tangled-Universe on December 21, 2015, 08:40:27 AM
Ha ok, seems you know me better than the other way around ;)

a Dune the novel fan for sure....

We all know us fans tried to create Arrakis at some point...

Shigawire

Quote from: WASasquatch on December 21, 2015, 02:52:19 PM
Quote from: bobbystahr on December 21, 2015, 09:22:20 AM
Quote from: Tangled-Universe on December 21, 2015, 08:40:27 AM
Ha ok, seems you know me better than the other way around ;)

a Dune the novel fan for sure....

We all know us fans tried to create Arrakis at some point...

Yeah, alas only Wiwine got close to that. I did manage to make a decent desert scene in World Machine, but only the geometry, and nothing beats a full planet that you can zoom a camera from orbit to surface seamlessly. So I haven't given up on it. :)
Just need to learn a lot more stuff first!

WAS

My only attempt. Friend rendered it for me without a BG so I could edit in PS.


Shigawire

#20
That's awesome. Though the real trouble begins once you want to do the dunes close up. :) Parabolic dunes, star dunes, etc. And they need to have a maximum slope on the leeward and windward side. Wiwine really came pretty damn far with his stuff. I think I can learn more from his methods. But it's way above my head... (currently) - need to brush up and get some more in depth trigonometry understanding.

WAS

Quote from: Shigawire on December 21, 2015, 03:47:17 PM
That's awesome. Though the real trouble begins once you want to do the dunes close up. :) Parabolic dunes, star dunes, etc. And they need to have a maximum slope on the leeward and windward side. Wiwine really came pretty damn far with his stuff. I think I can learn more from his methods. But it's way above my head... (currently) - need to brush up and get some more in depth trigonometry understanding.

Yep, I can't get dunes, or snow drifts to look that great for both my sand shaders and snow shaders.

Shigawire

#22
Is there a way to tell a specific reflection shader to only reflect the sunlight, but to ignore the bluesky environment?
Or, say, a falloff controller for the reflectivity, based on direct lighting. So that reflection would only be happening in surfaces hit by the direct light (sun-light or other).
I just need a simple answer.

TheBadger

nice snow :)
kinda rather like the large image of the first post better though. I like how you can scroll/zoom into it. Like that on cgsociety too. meh, just jabbering, cool image anyway.
It has been eaten.

Oshyan

No, you can't control reflection in those more complex ways.

- Oshyan

Dune

Unless you render out a mask from a hard-lit landscape, and project through render camera.

Shigawire