Cracking Up

Started by fleetwood, June 04, 2015, 03:53:10 PM

Previous topic - Next topic

fleetwood

I saw some recent photos from NASA's Mars exploration that showed an interesting type of cracked rock terrain.
Have tried to render it fully procedurally.
Here is the NASA reference photo and my render.

(auto parts standing in for space debris are  from Artec Scans)



Clay


bobbystahr

mind blowingly similar, well done.
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

Dune

Pretty good. I only think you gotta take the color out of the fake stones, so they take on the ground colors.

archonforest

Dell T5500 with Dual Hexa Xeon CPU 3Ghz, 32Gb ram, GTX 1080
Amiga 1200 8Mb ram, 8Gb ssd

Hannes

Fantastic! I'd leave a bit of the grey in the stones shader. They seem to be grey and covered partially by some red mars dust.

fleetwood

Thanks all.
To my eye it looks like there are a few grey stones somewhat covered in dust in the photo and in many other Mars photos. I think the predominant red ground tends to make grey stones appear more blue to the eye (my eye anyway) than they really are because of contrasting effects of opposite colors.

In any case I chose to make some of my stones have a bit of blue cast. Maybe just a neutral grey is needed.

bobbystahr

To me, as a Martian(Scorpio ruled by Mars)coulorblind artist/tone deaf musician it still rocks(pun intended)...no slag on Ulco's observation as he has colour sense, hee hee hee
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

TheBadger

It has been eaten.

Oshyan

Very nice result, quite close to the reference. Is there specular/reflection used on any of your shaders? The primary, large-area reddish-brown looks a bit shiny or plastic somehow. In the reference it is indeed quite smooth, but also very matte, dusty basically. I think addressing that would take this right into photoreal.

- Oshyan

fleetwood

Update
There never was any specular reflection in any of the stones or surface but the crusty layer may have been too smooth. Made many small changes like tiny crust layer displacement, additional sands, modified the stones many times. I think I'm done with this approach for now- this is iteration 45 (the original post was iteration 30 :-X.

Dune


bobbystahr

Still like it so not over tweaked. This is amongst the best stone work I've seen here...especially as it's a re creation of a "real life" situation....
something borrowed,
something Blue.
Ring out the Old.
Bring in the New
Bobby Stahr, Paracosmologist

j meyer

That's it ,well done!