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General => Image Sharing => Topic started by: nvseal on April 13, 2008, 08:52:00 AM

Title: Cracked Mud
Post by: nvseal on April 13, 2008, 08:52:00 AM
Another canyon render. I think I may try to redo this one with a better sun angle (its kind of hard to get sun done there ;)).
Title: Re: Cracked Mud
Post by: child@play on April 13, 2008, 09:04:30 AM
sweet, great job
Title: Re: Cracked Mud
Post by: rcallicotte on April 13, 2008, 09:14:57 AM
Pretty decent.  To be picky, you might need some randomness to the cracks...as far as big and small chunks of dried mud.  I'm only being picky, since it's obvious this is very very good work.  If you can make the chunks of mud more random, then it would look utterly real.
Title: Re: Cracked Mud
Post by: Tangled-Universe on April 13, 2008, 09:27:12 AM
Neat image, like the overhangs and tunnel-like appearance :)
The cracks look very nice, but I do agree with Calico a little.
Good lighting too.

Martin
Title: Re: Cracked Mud
Post by: Seth on April 13, 2008, 10:39:50 AM
nice. i like the great distance view.
Title: Re: Cracked Mud
Post by: PG on April 13, 2008, 10:45:43 AM
Quote from: calico on April 13, 2008, 09:14:57 AM
Pretty decent.  To be picky, you might need some randomness to the cracks...as far as big and small chunks of dried mud.  I'm only being picky, since it's obvious this is very very good work.  If you can make the chunks of mud more random, then it would look utterly real.

Yeah I agree there, maybe a second texture that's just a little darker to blend in with this one, this is the voronoi technique right? As far as the variation goes, you could do another voronoi function and blend it with the current one using merge shader.

Edit: oh yeah and a fractal breakup to add some variety to the distribution of variety, if you see what I mean. :D
Title: Re: Cracked Mud
Post by: Will on April 13, 2008, 01:53:27 PM
Great job, I really like the mud.
Title: Re: Cracked Mud
Post by: Mr_Lamppost on April 13, 2008, 04:14:21 PM
Remember that you can feed a function or a manipulated power fractal into the scale input of the Voronoi, which could add variety to the size of the chunks while keeping the system of cracks continuous.

Nice displacements, the broken tunnel is excellent.  I am not sure about the mist/haze; shouldn't it be showing beams where the sun is shining through the holes in the roof rather than an even glow?
Title: Re: Cracked Mud
Post by: nvseal on April 13, 2008, 04:22:50 PM
Quote from: Mr_Lamppost on April 13, 2008, 04:14:21 PM
Remember that you can feed a function or a manipulated power fractal into the scale input of the Voronoi, which could add variety to the size of the chunks while keeping the system of cracks continuous.

Nice displacements, the broken tunnel is excellent.  I am not sure about the mist/haze; shouldn't it be showing beams where the sun is shining through the holes in the roof rather than an even glow?


Hehe, I tried to get some nice beams yesterday. I actually made some that looked pretty good (in my opinion) but it only works with raytracing -- and I just couldn't stomach the idea of raytracing at the time.  ;) I'm working on some variety right now. I hadn't thought of that though so thanks. I'll go try that.
Title: Re: Cracked Mud
Post by: PG on April 13, 2008, 04:26:48 PM
Quote from: Mr_Lamppost on April 13, 2008, 04:14:21 PM
Remember that you can feed a function or a manipulated power fractal into the scale input of the Voronoi, which could add variety to the size of the chunks while keeping the system of cracks continuous.

Functions are really difficult, the tutorials aren't the best at explaining how they can be used. Any chance you could explain some? Obviously in another topic, not here.
Title: Re: Cracked Mud
Post by: Mr_Lamppost on April 13, 2008, 06:25:11 PM
Quote from: nvseal on April 13, 2008, 04:22:50 PM
Hehe, I tried to get some nice beams yesterday. I actually made some that looked pretty good (in my opinion) but it only works with raytracing -- and I just couldn't stomach the idea of raytracing at the time.  ;) I'm working on some variety right now. I hadn't thought of that though so thanks. I'll go try that.

Go on you know you want to.  ;)

A high quality version of that would be well worth the time.

Quote from: PG on April 13, 2008, 04:26:48 PM
Functions are really difficult, the tutorials aren't the best at explaining how they can be used. Any chance you could explain some? Obviously in another topic, not here.

I used to think of them as those "Scary blue boxes"; now if you look around you will see that I throw functions at almost everything.

There is a set of four tutorials by David Burnett that got me started:

http://forums.planetside.co.uk/index.php?topic=1166

http://forums.planetside.co.uk/index.php?topic=1167

http://forums.planetside.co.uk/index.php?topic=1168

http://forums.planetside.co.uk/index.php?topic=1169

Title: Re: Cracked Mud
Post by: Mr_Lamppost on April 13, 2008, 06:47:17 PM
Oooops!  :-[

Nvseal: Forget the idea of introducing variation by manipulating the scale of the Voronoi.  It works close to the origin but becomes highly distorted mush quite quickly as you move away.
Title: Re: Cracked Mud
Post by: nvseal on April 14, 2008, 08:46:42 AM
Version two. I don't really like that variety in the mud yet (mainly because there isn' really very much).
Title: Re: Cracked Mud
Post by: rcallicotte on April 14, 2008, 08:50:20 AM
Much better!!  Keep working on this.  It's an excellent image and almost (with some more nvseal tuning) ultimately real looking.
Title: Re: Cracked Mud
Post by: Cyber-Angel on April 14, 2008, 08:52:55 AM
Can one of you please enlighten me as to the use of Voronoi noise, when I add a Voronoi node to my network nothing shows up what else do I need to add to make the cells show up?

Regards to you.

Cyber-Angel  ;D 
Title: Re: Cracked Mud
Post by: Seth on April 14, 2008, 10:38:48 AM
very good !
Title: Re: Cracked Mud
Post by: inkydigit on April 14, 2008, 10:50:41 AM
Quote from: Cyber-Angel on April 14, 2008, 08:52:55 AM
Can one of you please enlighten me as to the use of Voronoi noise, when I add a Voronoi node to my network nothing shows up what else do I need to add to make the cells show up?

Regards to you.

Cyber-Angel  ;D 

hi Cyber-Angel....try this tutorial by Martin Huisman(Tangled-Universe)
http://www.ashundar.com/index.php?action=tpmod;dl=item342 (http://www.ashundar.com/index.php?action=tpmod;dl=item342)
also there are 4 more tutorials posted above this post which may help!

Title: Re: Cracked Mud
Post by: inkydigit on April 14, 2008, 10:52:06 AM
great canyon...look forward to seeing this evolve!
Title: Re: Cracked Mud
Post by: nvseal on April 14, 2008, 11:59:19 AM
Quote from: Cyber-Angel on April 14, 2008, 08:52:55 AM
Can one of you please enlighten me as to the use of Voronoi noise, when I add a Voronoi node to my network nothing shows up what else do I need to add to make the cells show up?

Regards to you.

Cyber-Angel  ;D 

Thanks all. Cyber-Angel, here is the tutorial I used. http://en.tgblog.de/?p=27#more-27
Title: Re: Cracked Mud
Post by: Cyber-Angel on April 14, 2008, 12:37:17 PM
Thank for your help I shall look at these when I have some time (And Ashundar is working again) if I have questions I may ask in another post to save this one been cluttered.

Regards to you.

Cyber-Angel  ;D
Title: Re: Cracked Mud
Post by: moodflow on April 14, 2008, 02:02:36 PM
NVseal, this is looking fantastic!  Very nice lighting and the surfaces look nearly perfect.   :o
Title: Re: Cracked Mud
Post by: nvseal on April 15, 2008, 10:01:42 AM
I think I'm going to call this the final. I may do one more little thing with but I've got some other stuff I need to work on to. So here it is. Not much different, just anothere color added to the ground.
Title: Re: Cracked Mud
Post by: rcallicotte on April 15, 2008, 10:45:22 AM
Very nice, nvseal.
Title: Re: Cracked Mud
Post by: Seth on April 15, 2008, 10:46:57 AM
the light on the left wall is most impressive
Title: Re: Cracked Mud
Post by: mr-miley on April 15, 2008, 11:15:23 AM
Outstanding. The last one is definately the best. The lighting is superb  ;D

Miles
Title: Re: Cracked Mud
Post by: inkydigit on April 16, 2008, 11:03:29 AM
fantabulous!!...I want to explore here!
Title: Re: Cracked Mud
Post by: efflux on April 18, 2008, 05:27:22 AM
Saw this at renderosity. The tunnel effect is excellent.
Title: Re: Cracked Mud
Post by: RedSquare on May 03, 2008, 08:30:56 PM
Bloody marvellous, a real beaut' of a render.
Title: Re: Cracked Mud
Post by: choronr on May 04, 2008, 11:44:40 PM
I like it. Maybe the addition of a fill light would yield more details of the canyon wall.