Planetside Software Forums

General => Image Sharing => Topic started by: Saurav on March 11, 2008, 12:20:06 AM

Title: Flight Level 250
Post by: Saurav on March 11, 2008, 12:20:06 AM
Descending to flight level 250. A composite using Terragen 2 and a photo inside a Boeing 777-200.

Terragen 2: clouds and atmosphere.

Photo/composite: Window of plane, dust and scratches on the window, blur on the edges of the window.

Rendertime: 15hours per half using 2 cores on a 3Ghz Quad.

2048 cloud samples, 16 atmosphere samples, render quality 1, AA 5, GI 2,2.  A big thanks to 'gastar' for sharing his cloud file as this is where I got the inspiration from. It's tweaked quite a bit from the original posted file.
Title: Re: Flight Level 250
Post by: gastar on March 11, 2008, 01:31:44 AM
That is a nice idea.... good work...

thanks for using my "big cloud" ....  :)

Gastar

Title: Re: Flight Level 250
Post by: Phylloxera on March 11, 2008, 05:50:42 AM
Good idea !
Title: Re: Flight Level 250
Post by: FrankB on March 11, 2008, 06:00:11 AM
Ah, I was unaware of the fact that you've been up to a similar challenge as I :-)

The cloud is just beautiful, and the composition makes it interesting even more.
I'm wondering why you need more that 2000 samples for the cloud. That seems a bit much. I found I can go with a density of 0.2 and get away with ~400-500 samples for the cloud.
In turn, I had to up the atmo samples.

So why have you required so many cloud samples, I'm curious!

Cheers,
Frank
Title: Re: Flight Level 250
Post by: Saurav on March 11, 2008, 07:11:05 AM
Frank that was part due to my laziness. ;D

While setting up this scene, I was happily experimenting with the clouds samples and I had forgotten to set it back to 1000 for final render. Usually for thick clouds I set somewhere between 500 -1000 samples for final render, I find that gives good details for the clouds.

I'll be sure to try out your render settings next time I decide to do a big cloud render. :D
Title: Re: Flight Level 250
Post by: dhavalmistry on March 11, 2008, 09:32:38 AM
nice clouds Saurav!
Title: Re: Flight Level 250
Post by: nvseal on March 11, 2008, 09:33:43 AM
Nice one. How did you get that great cloud shape?
Title: Re: Flight Level 250
Post by: rcallicotte on March 11, 2008, 10:14:35 AM
Fantismo cloud.  I'm believing this one.   ;D
Title: Re: Flight Level 250
Post by: Tangled-Universe on March 11, 2008, 12:07:00 PM
This looks really nice Saurav!
Great clouds, impressive scales :)

Like NVseal asked: how did you get those (billowy) shapes?
Title: Re: Flight Level 250
Post by: moodflow on March 11, 2008, 12:17:05 PM
The shape and quality are really nice.   8)

Do you have any tips on settings? 
Title: Re: Flight Level 250
Post by: gastar on March 11, 2008, 02:10:32 PM
the cloud depth = 20000 in my file which you can find in the share area.... this is why the cloud are going so high.... but this need so many samples, if you use lower then 500 cloud samples, there is to much noise....

here a little example from my share file..... with 1800 samples, AA10, detail 0.85

rendertime: 5 hours

Currently I render this in 1600x1200 and I am waiting.... :)

Gastar
Title: Re: Flight Level 250
Post by: rcallicotte on March 11, 2008, 03:08:42 PM
Thanks for sharing.  This is cool and has been a long time desire of many of us here.
Title: Re: Flight Level 250
Post by: moodflow on March 11, 2008, 04:19:06 PM
Yes, this is really nice.  The scale of the billows is nearly perfect.  Many thanks for this.

I personally spent a few months solid working on a billowy cloud format, but it always had strange artifacts (bad with good).  I'm glad someone else got it right.
Title: Re: Flight Level 250
Post by: Saurav on March 11, 2008, 06:31:14 PM
Take a look at gastar's 'big cloud file for a good start,

Here were my settings for this cloud.

Cloud depth: 15k
Edge sharpness: 3
Cloud density 3:
Coverage adjust: -.05
Base wispiness: 1
Base softness: 1
Coverage gamma: -3

Feature scale: 40k
Lead-in: 20k
Smallest scale: 20
Contrast: 1.5
Coverage adjust:-.25
Roughness: 1.5

Noise: Perlin Billows
Noise Variation: .9
Buoyancy: .75
Clumping variation: .4
Lead in warp: .5




Title: Re: Flight Level 250
Post by: rcallicotte on March 12, 2008, 12:31:20 PM
@Saurav -

Contrast: 1.5
Density:1.1

Which is which?  There is no Density textbox.
Title: Re: Flight Level 250
Post by: Saurav on March 12, 2008, 06:01:20 PM
Hi Calico

That was a typo it shouldn't be there.

Title: Re: Flight Level 250
Post by: Costaud on March 12, 2008, 10:32:02 PM
You really make high quality image each time.
Title: Re: Flight Level 250
Post by: rcallicotte on March 12, 2008, 10:48:57 PM
Brilliant. Thanks for sharing.  I'm having fun with this file and settings...all over the place.   ;D

Quote from: Saurav on March 12, 2008, 06:01:20 PM
Hi Calico

That was a typo it shouldn't be there.