Experiments..

General questions about Indigo, the scene format, rendering etc...
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OnoSendai
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Experiments..

Post by OnoSendai » Tue Jun 12, 2007 1:34 am

Some procedural skies rendered in Indigo.
Top one uses an atmospheric scattering simulation, bottom one is just a cloud scattering model in front of the usual physical sky background approximation.
Clouds are constructed using procedural Perlin noise of several frequencies.

Will post more info in a blog post soon.

On the topic of non-uniform scattering, is there anything in particular people want to see? (Volume emitters should be doable as well.)
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clouds1.png
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clouds2.png
clouds2.png (475.7 KiB) Viewed 12794 times

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Phoenix
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Post by Phoenix » Tue Jun 12, 2007 1:46 am

Wow looks very interesting!

I'm greatly anxious to see more about it!

And I hope it'll find its way in one of the next releases soon. :wink:

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SmartDen
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Post by SmartDen » Tue Jun 12, 2007 1:46 am

:shock: Wow, it looks beautiful, gorgeous, wonderful, awesome!!!

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psor
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Post by psor » Tue Jun 12, 2007 1:57 am

Erm, ... :arrow: :shock: :shock: :shock: 8)
"The sleeper must awaken"

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Post by StompinTom » Tue Jun 12, 2007 2:29 am

looks awesome! i definitely like the top one. very surreal. be nice to see it completely smooth.

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Post by Zom-B » Tue Jun 12, 2007 2:34 am

thats totally awesome dude!!!!!
The implementation of both modes would be nice too 8)

How about render times / Muts per pixel compared to an cloud free sky?

Would love to see the atmospheric clouds rendering longer :wink:

now I have to stay drunk till first 0.9t1 release, to avoid getting lost in total hysteric impatience :lol:
polygonmanufaktur.de

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OnoSendai
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Post by OnoSendai » Tue Jun 12, 2007 2:40 am

Top image is ~ 6 hours, 2 threads, Core ~1.6 Ghz
Bottom image is a few hours on same.

There's a lot of work to do on making the sampling more efficient tho.

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Post by SimonLarsen » Tue Jun 12, 2007 2:47 am

now I have to stay drunk till first 0.9t1 release, to avoid getting lost in total hysteric impatience
Great idea!
But almost out of beer. :(

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Post by Kram1032 » Tue Jun 12, 2007 2:56 am

:shock: :shock: :shock: :shock: :shock: :shock:
They're GREAT!!!
(I prefere the upper one)

"a few hour on same" = more or less than 6 hours?

(btw: FINALLY :mrgreen: :D :) :D :mrgreen:)
Last edited by Kram1032 on Tue Jun 12, 2007 3:01 am, edited 1 time in total.

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OnoSendai
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Post by OnoSendai » Tue Jun 12, 2007 3:00 am

a few hours = i can't remember how many exactly, i think 2 or 3 :)

finally... heh :)
I have more free time now, so I finally got round to doing the sky thing :)

Another thing... This is still in the very early stages. I have no idea if my sky scattering coefficient constant is correct; it may be off by several orders of magnitude.

And another cool thing.. in the top image, the camera is two meters above a 6300km radius sphere - the whole earth is modeled, and shots from space should be possible :)

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Post by SimonLarsen » Tue Jun 12, 2007 3:03 am

And another cool thing.. in the top image, the camera is two meters above a 6300km radius sphere - the whole earth is modeled, and shots from space should be possible :)
Damn, that would be so cool! :D

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Post by Kram1032 » Tue Jun 12, 2007 3:04 am

O.o!!
With day and NIGHT?
And:
There automatically is an "infinite plane", which is a huge (earth)-sphere[oid]?

OMG!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! INCREDIBLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

(Now, a huge texture is missing xD)
[ok, and different settings, like "Venus" "Mars".... and CUSTOM!!!!!]

You really do incredibly great work!

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OnoSendai
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Post by OnoSendai » Tue Jun 12, 2007 3:06 am

Well.. i guess if you position the camera on the other side of the sphere from the sun, it will be night :)
I guess i need to add some stars....
Also.. .to get a little crazy, and if the precision of the floating point numbers holds up, I could model the moon as a big sphere :)

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Kram1032
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Post by Kram1032 » Tue Jun 12, 2007 3:09 am

O.o Moon!
:shock:
*turning into a werewolf*
*hoooooooooooooooooooooowwwwwwwwwwwwwwwl*

That's crazy! Don't forget the craters!

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Post by SmartDen » Tue Jun 12, 2007 3:13 am

OMG! If you realize all this stuff, Terragen will be not longer needed

*very exited*

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