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General => Image Sharing => Topic started by: fleetwood on June 04, 2015, 03:53:10 PM

Title: Cracking Up
Post by: fleetwood on June 04, 2015, 03:53:10 PM
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)

Title: Re: Cracking Up
Post by: Kadri on June 04, 2015, 05:00:56 PM

I like the ground.
Title: Re: Cracking Up
Post by: Clay on June 04, 2015, 07:58:23 PM
That's pretty cool!
Title: Re: Cracking Up
Post by: bobbystahr on June 04, 2015, 10:54:42 PM
mind blowingly similar, well done.
Title: Re: Cracking Up
Post by: Dune on June 05, 2015, 01:40:15 AM
Pretty good. I only think you gotta take the color out of the fake stones, so they take on the ground colors.
Title: Re: Cracking Up
Post by: archonforest on June 05, 2015, 05:57:03 AM
That is a well done! ;)
Title: Re: Cracking Up
Post by: Hannes on June 05, 2015, 06:04:27 AM
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.
Title: Re: Cracking Up
Post by: fleetwood on June 05, 2015, 06:54:41 AM
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.
Title: Re: Cracking Up
Post by: bobbystahr on June 05, 2015, 09:39:49 AM
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
Title: Re: Cracking Up
Post by: TheBadger on June 05, 2015, 09:36:30 PM
 8)
Title: Re: Cracking Up
Post by: Oshyan on June 06, 2015, 06:01:29 PM
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
Title: Re: Cracking Up
Post by: fleetwood on June 10, 2015, 06:28:15 AM
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.
Title: Re: Cracking Up
Post by: Dune on June 10, 2015, 07:36:19 AM
Top!
Title: Re: Cracking Up
Post by: bobbystahr on June 10, 2015, 09:24:00 AM
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....
Title: Re: Cracking Up
Post by: j meyer on June 10, 2015, 12:25:57 PM
That's it ,well done!
Title: Re: Cracking Up
Post by: Hannes on June 10, 2015, 05:20:02 PM
Wow!!!
Title: Re: Cracking Up
Post by: TheBadger on June 10, 2015, 06:42:23 PM
^^ Agreed!
Title: Re: Cracking Up
Post by: Oshyan on June 11, 2015, 01:40:43 PM
Nailed it! Ironically it's the shiny object that is bringing down the realism a little now. The environment is photoreal IMO.

- Oshyan
Title: Re: Cracking Up
Post by: RArcher on June 12, 2015, 01:12:17 PM
Love the ground textures, you really nailed the combination of smooth areas and rocky sections.
Title: Re: Cracking Up
Post by: TheBadger on July 04, 2015, 10:03:02 PM
@fleetwood

Hey man,
Wanted to ask if you would try something for me. Would you mind making a cube from another 3D soft and opening it in TG, then apply your file from this thread to it as a texture and as displacement. perhaps just the top of it.

I know there will be issues, but I am very curious how it will look. I am trying to decide  between two workflows to texture a building, and I thought your image here would make a good example. I feel like if you can make it work at all, then that would be better than trying to do something of the same detail level as your image, but by sculpting or image maps. Since your image is of some really fine detail work.

I am not asking for your file, that would not help me. I am trying to do something a bit different, but the same idea.

The object I am working with is simple shapes. Cubes and rectangular, as you would expect from a simple building. You can sub-devide as much as needed.

If not, no worries :)

I will post thread in image sharing called "architecture" so you can see what I am toying with.

Cheers.
Title: Re: Cracking Up
Post by: fleetwood on July 05, 2015, 10:28:32 AM
Would you mind making a cube from another 3D soft and opening it in TG, then apply your file from this thread to it as a texture and as displacement. perhaps just the top of it.

I'll give it a try and see what happens.