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General => Image Sharing => Topic started by: Henry Blewer on December 15, 2009, 02:38:38 PM

Title: Clouds
Post by: Henry Blewer on December 15, 2009, 02:38:38 PM
This one took a long time to render. It was fun watching it. Each pass and block revealed more details. Enjoy!

http://farm3.static.flickr.com/2769/4188488826_7c6cf347ec_o.png   :)
Title: Re: Clouds
Post by: Kadri on December 15, 2009, 02:49:42 PM
Njeneb , i like this render. This is maybe one of your best renders in my opinion  :)

Kadri.
Title: Re: Clouds
Post by: Henry Blewer on December 15, 2009, 02:52:38 PM
Thanks Kadri! I agree. I used Marc Genhart's Pines, Honey Locusts, and Beech. They really are the stars in this one.
Title: Re: Clouds
Post by: Seth on December 15, 2009, 02:58:26 PM
definitely one your best !
good job :)
Title: Re: Clouds
Post by: inkydigit on December 15, 2009, 03:47:43 PM
I agree, your best and my favorite!
Title: Re: Clouds
Post by: choronr on December 15, 2009, 04:02:56 PM
I agree, one of your best. It looks like you have a bit of luminosity on the vertical elevations layer which is strikingly good.
Title: Re: Clouds
Post by: BTilson on December 15, 2009, 04:12:51 PM
Wow, this is impressive, and darn near photo realistic!! I'm curious about your process of surface layering. Especially in the foreground you can see what looks sort of like a small pasture with some sparse trees in it. The surface looks very natural and real. I have a hard time so far getting any sort of realistic looking surface for anything besides rock. Care to share any pointers?

Thanks!
Title: Re: Clouds
Post by: Linda McCarthy on December 15, 2009, 04:18:24 PM
Beautiful render, njeneb, and excellent, too.  Linda
Title: Re: Clouds
Post by: BTilson on December 15, 2009, 04:25:54 PM
...and that must be one INSANE tree population!  :D
Title: Re: Clouds
Post by: schmeerlap on December 15, 2009, 04:26:10 PM
Excellent render, Henry; and echo others who have said this is one of your best. I particularly like the tree deployment.

John
Title: Re: Clouds
Post by: MacGyver on December 15, 2009, 05:15:37 PM
Peter Jackson-esque ;D Very good! :)
Title: Re: Clouds
Post by: domdib on December 15, 2009, 05:16:53 PM
Joining the chorus - excellent job! The light is beautifully soft.
Title: Re: Clouds
Post by: Henry Blewer on December 15, 2009, 05:43:28 PM
Tree distribution:
It is really quite easy to get this effect. I start by making the population and pasting the coordinates. Now I go to an overhead projection of the preview window. I adjust the population size so it will cover everything which needs covering. This makes a population which is in the millions on this type of render.

Now I add a distribution shader in the Blend By Shader input. Make Fractal Breakup selected. By using the measure tool, you can get the 'width' across the preview image. Divide this by 1/3 or 1/4. (It can be rounded up) This will give you the Scale of the Fractal Breakup. The Lead-In Scale is the full measurement. Set your altitude and slope constraints how you think they will work.

The last things to do are to reduce the coverage on the distribution shader and set the population density of the object. Preview B-box can show how the objects are placed in the landscape. If you are not happy, change the seed and /or the density of the population. If you leave the distribution shader open, it is easy to adjust these settings also.

This method can take a population down from millions of instances to a manageable couple of hundred thousand. I have not had much luck using this method for grass objects. Happy rendering!
Title: Re: Clouds
Post by: Gannaingh on December 15, 2009, 06:50:42 PM
Awesome mood! Even though the clouds are very well done IMO the landscape is the highlight of the image and looks like a photograph.
Title: Re: Clouds
Post by: Malcolm79 on December 16, 2009, 02:03:38 AM
Njeneb, really cool artwork!The feeling of huge space referred to excellent!
5+!
Title: Re: Clouds
Post by: FrankB on December 16, 2009, 02:27:59 AM
Henry! You're definitely getting up to speed now :)
Title: Re: Clouds
Post by: Dune on December 16, 2009, 02:51:06 AM
Great image. Nothing to add. Thanks for showing!
Title: Re: Clouds
Post by: Tangled-Universe on December 16, 2009, 05:24:42 AM
Definitely best work so far Henry!

Besides the clouds you also have a nice terrain and populations.
I use almost the exact same technique for setting up my populations and breakup, it works very well for trees indeed.
For grasses I barely use breakup, only slope/height restrictions.

Anyhow, I think this render could be even nicer when you would have more white-ish clouds and with less coverage of the sky to get more direct lighting.

If you ever intend to do these type of images again, and you will! lol , then use the new raytrace function for objects together with at least AA6. AA8 even better.
In case you don't know, the quality of raytraced objects is determined by the AA-setting. The higher the better, but you'll soon find out that AA6 gives very nice results and AA8 probably most bang for buck.

Speaking about bang for buck: to get rid of odd lighting conditions on your objects in shadow areas you might try rendering this with GI 2/4.

Keep up the improvements and good work :)


Cheers,
Martin
Title: Re: Clouds
Post by: Henry Blewer on December 16, 2009, 08:49:37 AM
I have been playing with the new release. There are some real changes to get to know. But the speedier render time is huge on my machine!
When I was ready to do the render, I thought about the GI settings in the render section. I decided that they did not really add much, except render time. I did think of using ambient occlusion when I saw the shadow areas. That was 20+ hours into the render.

The new render settings will take some experiments to get the 'how' of them. I am playing with clouds now.
Title: Re: Clouds
Post by: Tangled-Universe on December 16, 2009, 09:00:15 AM
Of course upping GI adds rendertime, but it are these type of situations where using higher GI settings is justified/required when aiming for more realistic lighting.
Title: Re: Clouds
Post by: Henry Blewer on December 16, 2009, 09:04:32 AM
There is an issue I have with GI in the lighting settings. I am never sure how much to add to the surface. I have been experimenting, but the settings I have tried wash out the image, even when very small increases are used.
Title: Re: Clouds
Post by: Tangled-Universe on December 16, 2009, 09:09:42 AM
Quote from: njeneb on December 16, 2009, 09:04:32 AM
There is an issue I have with GI in the lighting settings. I am never sure how much to add to the surface. I have been experimenting, but the settings I have tried wash out the image, even when very small increases are used.

I made many mistakes too with the strength on surface settings, but I learned that in the majority of cases you don't need to increase it and if so I never had to go beyond 1.5.
In some cases, with very bright direct lighting you might even reduce the strength on surface < 1 in order to avoid washed out colors/contrasts.

I'd make 2 enviro lights, one GI (untouched settings) and one with AO and set colours and strength in atmosphere < 0.5 and colours and strength on surfaces around 0.5 for starters.
Most of the times this gives me very good results, however, if I use this technique I render with higher GI quality/sampling ;)
Title: Re: Clouds
Post by: Zairyn Arsyn on December 16, 2009, 10:01:38 AM
I agree with all of the above,
this is the best render i have seen from you, njeneb; very good work.

the trees really caught my eye  :)
definitely worth the time to render.
Title: Re: Clouds
Post by: Henry Blewer on December 16, 2009, 10:06:54 AM
Thanks for the tips, I am trying them out now.

It's really all Marc's fault. They are his trees....
Title: Re: Clouds
Post by: Gforce on December 16, 2009, 05:30:53 PM
I can't say anything that people haven't said but it's an excellent render.
Title: Re: Clouds
Post by: Henry Blewer on December 16, 2009, 11:20:09 PM
Thanks for all the replies and encouragement. This is my first 'hot' topic.
Title: Re: Clouds
Post by: MGebhart on December 17, 2009, 12:04:09 AM
Very nice Henry.

Oh, the rocky surfaces are really sweet.

Marc
Title: Re: Clouds
Post by: tempaccount on December 17, 2009, 04:15:50 AM
Great colors on the clouds. I would've cropped about ~20-25% off from the bottom of the image, then it would be perfect!
Title: Re: Clouds
Post by: Zairyn Arsyn on December 17, 2009, 08:17:24 AM
Quote from: MacGyver on December 15, 2009, 05:15:37 PM
Peter Jackson-esque ;D Very good! :)

if the tree cover was really dense it could be mirkwood like.....
Title: Re: Clouds
Post by: aymenk2003 on December 17, 2009, 08:27:39 AM
...How did I missed this one njeneb ?? may be I was too busy...
Great work you've done here njeneb...
I have saved this one on my machine credited to you and use it as a wallpaper...

N.KAID
Title: Re: Clouds
Post by: ra on December 17, 2009, 01:49:32 PM
I like that one. Very nice clouds!
Title: Re: Clouds
Post by: dandelO on December 18, 2009, 07:51:50 PM
Man, I'm sorry I missed this, too! I just spotted it over at DA and thought... 'Eh? I haven't noticed this posted at PS forums, why?'

Turns out I just really missed it and it was a bit lower down the new posts chain for me to notice.

Henry, you have excelled yourself, this is just great. Give it the ray tracer and make it a bitty bigger, 1200px would look amazing.

EDIT: I thought this one would be the same size as the one you posted at DA. Actually, it is bigger. Still, give it the ray tracer... ;)
Title: Re: Clouds
Post by: Henry Blewer on December 18, 2009, 08:24:01 PM
I may do a different POV for this one with the new version.
Title: Re: Clouds
Post by: littlecannon on December 19, 2009, 06:33:16 PM
Wow... definitely your best.
Simon.
Title: Re: Clouds
Post by: EoinArmstrong on December 20, 2009, 02:00:09 PM
Holy yes!  That's just pure win - awesome shot.  *jealous*!