Cirrus clouds behind second planet

Started by Astaroth, January 07, 2008, 11:26:57 AM

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Astaroth

Hello everybody
first question of mine ;)

Is there any way to get the cirrus clouds BEHIND a second planet so they look like they're in the outer space like a nebula or so?
I've tried to raise the altitude of the clouds, but they're still in front of the planet and looked very crazy.

Thanks for your help, didnt find anything in the forum.

Astaroth

dhavalmistry

if you are trying to get nebula in the background, then you can do so by putting a nebula "image map shader" in the background or you can check this out...

http://forums.planetside.co.uk/index.php?topic=2017.msg28072#msg28072
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Astaroth

Thank you for helping, but actually I have a nebula/starfield image in the background with this method, but now I want to add some additional cirrus clouds, who don't hide the second planet.
Is there a possibility without image mapping?


mrwho

well, you could try an illusion of sorts by making the planet small, and bringing it up close, and then put a cloud layer behind it.

Astaroth

#4
I now have the planet at a distance of 15'000 meters and the cloud altitude is set to 100'000 meters, but they will be rendered still in front of the planet.
Seems not logic to me.

When I set the distance of the planet, from where will that be measured? From the center of the main planet or from the zero point?

rcallicotte

Measured from the center of the Main Planet.
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moodflow

I don't think what you are after is possible, or atleast not tested.

I've wanted to test a similar method to where 2 background are created with different diameters, and the smaller diameter background has an image map with an opacity mask attached.  If this works, it would be just like the "inner" background having a billboard image posted to it.  If this works in TGTP, then you could likely pull this off.
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Sethren

Could you try like 400,000 kilometers or more? See what that looks like.

Mr_Lamppost

Interesting idea.  The short answer is YES  ;D


I had no idea if it could be done or not so had a try.  I don't know if this is the effect you are after but here is a quick test render and the tgd.

The planet/moon is behind the normal clouds and the pink cirrus nebula is behind the planet.  Sorry about the colours.

The moon has a radius of 3000 Km and is pushed back 10000 Km.  The cirrus layer is at a height of 100000 Km; I did find that I needed to push back the background by an order of magnitude to keep everything visible. 

Smoke me a kipper I'll be back for breakfast.

Sethren

Now there is a lot of potential there. Clouds for nebulas and i bet we can push them out even farther and increase the large-scale details some more. I smell hubble-like renders with what we have seen done with the aurora effects. I bet if we can push lighting shader sources out into the clouds then we can have nebulas lit from the inside and all around. This could get interesting.

j meyer

That looks very promising!Thank you Mr.L.

Mr_Lamppost

I had no idea what if anything was possible with this idea so very quickly put that scene together to find out.  The result looks similar to adding a power fractal shader to the background but as mentioned the ability to use depth should open up possibilities.

Just another thought to play with; How about passing a vector to the cloud density input of the "Nebula"?  Remember those psychedelic experiments from a while back  ;D

http://forums.planetside.co.uk/index.php?topic=2648.15
Smoke me a kipper I'll be back for breakfast.

Sethren

Quote from: Mr_Lamppost on January 08, 2008, 07:33:29 PM
Just another thought to play with; How about passing a vector to the cloud density input of the "Nebula"?  Remember those psychedelic experiments from a while back  ;D

http://forums.planetside.co.uk/index.php?topic=2648.15


Yes, thanks Mr. Lamppost, those are the aurora effects i was referring to. I forgot what sub-forum it was exactly.

Mr_Lamppost

Sorry I didn't connect the two. The feeding vector experiments sort of faded away after "Stoned Glass"

http://forums.planetside.co.uk/index.php?topic=2648.msg27624;topicseen#msg27624

Yes that is near the end of the same thread

Here is a HUGE task for someone.  There is a vast store of ideas and ways to achieve then stashed away in here; anybody want to trawl through and sort the wheat from the chaff?
Smoke me a kipper I'll be back for breakfast.

j meyer

Maybe this(the above posted file of yours) can help to set forth
the other thread after the creative break,let's see. ;) ;D