Well, the only thing I really don't like about this one is the polar cap. It just doesn't seem natural, too white (or perhaps, too sharp). I'll keep working on it and probably come up with some kind if scene composition. C & C welcome.
Wow.
If I were you, I'd put a copyright on your images. <-- Me being serious.
I like the ice cap actually. Looks more realistic than the real Martian ice caps ;)
amazingly WOW!!
Nice job, all i would add is some craters, possible? and some huge canyons and peaks. A low density mirky white cloud layer for sand storms. Overall it looks great.
Sethern, could you even see all of that from this "distance"? I'm not sure how high up we're supposed to be, but my greatest challenge with these shots is how much would actually be visible.
This is as about as realistic as I've seen, which begs what I know. Never been at this distance before. So...
Quote from: Sethren on December 19, 2007, 02:15:22 PM
Nice job, all i would add is some craters, possible? and some huge canyons and peaks. A low density mirky white cloud layer for sand storms. Overall it looks great.
Yep, I'm already planning on trying to add just those things after I finish a current render. And calico, check out this image I'm using as a reference. http://www.windows.ucar.edu/mars/images/mars1.gif If I could, I would like to get something like this.
Pretty flippin' close.
There's very little impression of atmosphere here in terms of its effect on the perception of terrain details. I know a Mars-like planet would not have much atmosphere anyway, but things do seem a bit too sharp and clear, especially around the polar cap, but also in many of the other rough areas of the planet. I'm not sure whether softening the actual texturing, or just increasing atmosphere would be the preferable approach. Otherwise it looks very good though.
Btw your Mars reference image has a lot of artificial noise due to dithering because it's in a 256 color GIF format. This is probably a better reference: http://www.urania.be/sterrenkunde/images/mars-groot.jpg Notice how there are a few sharp details, but for the most part everything is a bit softer. And this is what Hubble sees: http://www.esa.int/images/2003_hubble_mars_l.jpg
Another good one: http://wanderingspace.net/wp-content/uploads/2007/03/mars-portrait.jpg
Note the subtle effect of the atmosphere here: http://www.astro.uio.no/ita/nyheter/rosetta_0204/images/MarsNACTwoColor_H,0.JPG
And finally, the real polar cap: http://wanderingspace.net/wp-content/uploads/2007/08/mars-polar.jpg (Matt is right ;D)
- Oshyan
Nice mate, I agree with what Oshyan said above.
Nice!
I love the details in this planet (Whether others think otherwise or not.)
I wish i could do planets like this, but I dont understand Image Mapping well:/
I don't think this was image mapping. Was it?
Quote from: zionner on December 19, 2007, 03:47:28 PM
I wish i could do planets like this, but I dont understand Image Mapping well:/
Ah..lol
Nope, no image mapping. ;)
And Oshyan, yes, I have some of those images. I will admit that I'm taking some liberty away from the real thing but hey, I'm not done yet. ;D
Although it's not image mapping, and it's looking great, here are high res 5.7k textures of Mars which could be useful for reference, including an elevation map: http://www.buining.com/ (http://www.buining.com/)
You got the colours spot on, I agree this could do bit a bit of softening (surfaces/atmo) for perception of depth. Looks very promising.
Next version. Yes, that is a huge canyon I know ;D.
you ain't kidding!
Oh, I like it. I want another. ;D
Oo'
+
very cool !
woah....thats HUGE!!!....
how high is the canyon to see it from this far??....the colors are spot on....
The canyon has a displacement of 5000 meters.
holy cow!....
QuoteWell, the only thing I really don't like about this one is the polar cap. It just doesn't seem natural, too white (or perhaps, too sharp).
It's not too sharp, just too...I'm not sure how to say it. It's not too sharp, because if it were fuzzier it would end up blending too much with the other terrain. The problem is that its features aren't big enough, so it ends up looking like granulated sugar. The real martian ice caps have much larger features:
http://nmp.nasa.gov/ds2/mission/images/southpole.jpg
http://ai.jpl.nasa.gov/public/home/chien/spring-agu-images/MLS/Mars_Ice_Cap.jpg
The rest of your terrain is excellent, though. Like you say it's the ice cap that needs tweaking.
QuoteNext version.
This version is better, but I still think it needs to have larger features.
QuoteThe canyon has a displacement of 5000 meters.
^^
Quote from: green_meklar on December 20, 2007, 11:04:18 AM
QuoteWell, the only thing I really don't like about this one is the polar cap. It just doesn't seem natural, too white (or perhaps, too sharp).
It's not too sharp, just too...I'm not sure how to say it. It's not too sharp, because if it were fuzzier it would end up blending too much with the other terrain. The problem is that its features aren't big enough, so it ends up looking like granulated sugar. The real martian ice caps have much larger features:
http://nmp.nasa.gov/ds2/mission/images/southpole.jpg
http://ai.jpl.nasa.gov/public/home/chien/spring-agu-images/MLS/Mars_Ice_Cap.jpg
That's a good idea. For some reason I didn't even think of doing that. I'll see what I can do.
Woah!
Thats one nice render!
Good work!
I've been trying to get a good looking ice cap for my ice planet care to share your secret?
There isn't really any secret. In this image, the ice cap is made by using two surface layers. The first surface layer is slope restricted to 40 degrees. I turned the coverage down and changed the fractal feature scale to something like 500000 or so, played with the roughness and contrast, and changed the noise type to billows. In the first surface layer I turned the fuzzy zone softness down to about 0.5 and the fractal breakup to 0.9 or 1. The color of the first surface layer was a light grey (not quite white because you don't want to reflect too much light). The second surface layer is similar to the first layer except the factal is larger, perlin, and the color is a darker grey with low roughness and a contrast high enough to make the color show well. Just to add some interest instead of pure white. I can upload the tgc later if doesn't help at all ;D.
First off, beautiful, wonderful picture. Looks really believable. Second, that is a damn huge canyon.
Whoa! Whoa!
Only possible problem i see is that the rest of the terain continues inside the valey. It would be a bit more realistic if the terain would change adruptly.
Here is the ice cap I forgot to post. ;D
Wow, that canyon is enormous. I like it though. The ice cap looks good too very nicely done.
sweet thanks man.
Fantasic nvseal.
Wow is right! I like the hint of atmo on the horizion. I can see what green_meklar means about the feature size... they need to be more defined, on a planetary scale that means huge! :o Great work so far!