Mars Impact Crater

Started by Inscrutable, October 06, 2007, 05:10:02 AM

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Inscrutable

Hi All,

It's been a while since I've posted anything, mainly because it's been a while since I've been happy with any of my renders (don't know why but I seem to have been through a bit of a trough as far as quality is concerned!).

Anyway, I've just finished reading Red Mars by Kim Stanley Robinson and have just started Green Mars - absolutely fantastic books if you're into detailed and believable sci-fi with deep characterisation. Then, when this image was Wikipedia's image of the day a couple of days ago, I was inspired.  http://en.wikipedia.org/wiki/Image:MarsEndurance.jpg

So here's my attempt at a martian landscape.  I wasn't trying to match the colours (I did try, but somehow the more orange colour didn't look very realistic in my initial renders) so I resorted to a more brown/orange colour.

Let me know what you think, but please note that I wan't trying to recreate the image, merely to create a martian-style environment.

Inscrutable

cyphyr

#1
Works for me, this is very believable. Remember the images we see from the Mars probes are all false colour so theres no reason why your colours should be wrong.  The detail you've achieved is very good. Just a personal preference, maybe I'd add a lighter/brighter hue to the near vertical exposed strata layers. I also notice very small parallel lines in the bottom left corner, I think this is caused by "very" small fractal repetition, not sure though and the corresponding shadow area is also effected. I generally mess about in photoshop with a clone brush to fix this, not ideal but particularly with broken shadows I don't know of another solution. These are nit picky points as this is a damn fine render.
Richard
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Mahnmut

#2
I love those books and I love your render!
As far as I know in most regions mars´ surface consists of dark rock coverded by reddish dust, so I wouldn´t brighten the steeper parts.
I am still working on my blue mars and I´d be glad if could achieve a surface like this on top of my mars-bumpmap!
I find it quite hard to make a believable crater out of a low-res "real" crater.
Best regards,
Jan

rcallicotte

So this is Disney World.  Can we live here?

dhavalmistry

how come you get to go to mats and take pictures and I dont...:(


lol...this is really good render....
"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Seth


old_blaggard

Nicely done!  On Mars there isn't nearly as much erosion as on Earth, so the stones could be a little sharper/spikier, but other than that it looks quite good.
http://www.terragen.org - A great Terragen resource with models, contests, galleries, and forums.

Inscrutable

Thanks for all your comments!  I'm just rendering another version at the moment which I have "red-ified".  I know none of you mentioned the browness as a problem but I just wasn't quite happy with it in the end.

As for the patterning in the bottom left, I couln't agree more.  I tried photoshopping it out but it became too fiddly a job.  Strange thing is that when I move the camera closer to that area, the patterning isn't there, so I don't know what's causing it.

In the new render, I've moved the sun which serves the dual purpose of removing this patterning (in the test render at 640x480, at least) and also, I think, making thr foreground a little more interesting.

I'll post it in the morning.

sjefen

I like it very much. Great work.
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Inscrutable

Okay, second render finished earlier than I'd expected, so I can post it now before I head off to bed (hooray!).

I'm quite happy with this one, I think the forground looks a little better because the lighting coming from the left gives the stones shadows.  I take what Old Blaggard says about the stones, but to be honst, I'm not really confident about messing around with the fake stones settings other than size and density, as I'm uncertain as to the effect.

Anyway, thanks again for you comments, and grateful if you could give me your thoughts on this version.

dhavalmistry

not bad at all....just a suggestion tho....it would be better if you could put "rover" or something...just to imply the scale.....
"His blood-terragen level is 99.99%...he is definitely drunk on Terragen!"

Mahnmut

As already said, marvelous!
But as you ask for comments, you could add some contrast and realism by making the pebbles more grayish, perhaps with red dust on top.

like in this pic:

http://users.med.auth.gr/~tsikaras/astra/mars5.jpg

Ann Clayborne would love your pic!

Will

The world is round... so you have to use spherical projection.

Cyber-Angel

Have a look at this site if you haven't already it has imagery taken by the HIRISE  (High Resolution Imaging Science Experiment) camera on the Mars Reconnaissance Orbiter (MRO) http://hirise.lpl.arizona.edu/index.php

There is a lot here.

You may also wish to look at the Jet Propulsion Labs: Mars Exploration Rover Mission Page http://marsrovers.nasa.gov/home/ this also has great imagery of Mars and may help a lot in future.

Regards to you.

Cyber-Angel     

Seth