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Off-Topic Discussion => General Discussion => Topic started by: Warlock on May 11, 2001, 06:00:00 am

Title: Idea for a background effect
Post by: Warlock on May 11, 2001, 06:00:00 am
Why not render out a distant supernova to be usde as an in game background effect to simulate the Capella Nova from other systems?

Just a thought  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)

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Title: Idea for a background effect
Post by: Setekh on May 11, 2001, 06:21:00 am
I wonder exactly how long a supernova would last.
Title: Idea for a background effect
Post by: Warlock on May 11, 2001, 06:28:00 am
Depends on the distance. To be honest I'm not sure scientists really know,..being all we can study are Novas from a few million years ago.

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Title: Idea for a background effect
Post by: JarC on May 11, 2001, 07:32:00 am
 
Quote
Originally posted by Warlock:
a few million years

there's yer answer then....long enough for FS plot purposes...

Title: Idea for a background effect
Post by: Warlock on May 11, 2001, 07:42:00 am
Yes but that's also because the light has traveled billions if not trillions of lightyears before we view it. And even then we need a hell-a-kickass telescope,..what'd be the point of that in game  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/tongue.gif)

But the going theory is the flash point should still be viewable several systems away for at least a few months if not years.

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Title: Idea for a background effect
Post by: Styxx on May 11, 2001, 08:57:00 am
It would probably take a few years for the light to reach the closest system, but it would be some really bright light...  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/biggrin.gif)
Title: Idea for a background effect
Post by: morris13 on May 11, 2001, 10:35:00 am
 
Quote
Originally posted by Styxx:
It would probably take a few years for the light to reach the closest system, but it would be some really bright light...   (http://dynamic.gamespy.com/~freespace/ubb/noncgi/biggrin.gif)

There are reports from china in the 6th century(I think?) of the light from the supernova that created the horsehead nebula reaching earth. For almost a year it was like having two full moons in the sky every night and it was even visible during the day, and that was at a fairly large distance, galactically speaking. A recent supernova in close proximity (4-10LY) to a system would make a very big, very bright light. If you wanted to make it a lil older it would be a lil less bright, but much larger since what you would be seeing was the supernoval nebula forming, and still mostly on fire. Very spectatular.
Wow.. that'd be an interesting mission... you come through an uncharted node into a recently formed nebula that still has a star collapsing in the middle. That'd give someone the chance to really show off backgroundwise. =)
Title: Idea for a background effect
Post by: Nico on May 11, 2001, 12:23:00 pm
If only we could use ani files for the background... Everybody with me: WE WANT THE SOURCES!!!! WE WANT THE SOURCES!!! WE -bump-

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Title: Idea for a background effect
Post by: Sushi on May 11, 2001, 01:43:00 pm
As far as I understand it, supernovae start off with a really bright flash that lasts as long as the explosion(not long) and then slowly get dimmer as the gas cools.

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Title: Idea for a background effect
Post by: Shrike on May 11, 2001, 03:53:00 pm
A supernova at the distance of capella would, for a period of a couple months, be the brightest thing in the sky.  At their peak, they're brighter than the entire rest of the galaxy put together!
Title: Idea for a background effect
Post by: wEvil on May 11, 2001, 04:04:00 pm
i thought it was the crab nebula the chinese saw explode?

a (small) supernova within 100 light years of a habitable planet would totally sterilise any life and destroy the ozone layer.

the most recent one was in the large magealannic cloud, and that could be seen with the naked eye.  


as to rendering a supernova, easy enough with a bit of lensflare and a plugin like pyrocluster, afterburn or hypervoxels(i think thats lightwaves' plugin?)
Title: Idea for a background effect
Post by: Shrike on May 11, 2001, 04:31:00 pm
It's just REALLY bright.  It'll still be a point source.
Title: Idea for a background effect
Post by: Sushi on May 12, 2001, 01:46:00 am
Hmmm...that would make an interesting mission background- the Capella star has just exploded, the shockwave will reach this system in XX days, time to start packing up civilization...

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Title: Idea for a background effect
Post by: NeoHunter on May 12, 2001, 10:01:00 am
How long did the Crab Nebula last as a supernova? A few days or weeks before it became the nebula?

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Title: Idea for a background effect
Post by: morris13 on May 12, 2001, 11:16:00 am
 
Quote
Originally posted by NeoHunter:
How long did the Crab Nebula last as a supernova? A few days or weeks before it became the nebula?

It took years. Keep in mind that that nebula is solid matter in a cloud several light years across. Even with how powerful a supernova is, the material shockwave isn't moving at the speed of light, and so a nebula is going to take many years to form and cool. While the supernova itself will be a point source, during the years during which the nebula is forming, especially the first couple, the nebula itself is glowing hot, and in a sense sort of on fire, so you would have a REALLY bright point source with a corona of gas around it. Also, the effects of a supernova explosion are not quite that widespread. Systems within 10LY or so would see some serious problems, but not any farther away than that. I suppose someone could do some research on astronamy sites and find out where capella actually is relative to other stars.
Title: Idea for a background effect
Post by: phreak on May 12, 2001, 05:32:00 pm
 
Quote
Originally posted by wEvil:
a (small) supernova within 100 light years of a habitable planet would totally sterilise any life and destroy the ozone layer.
If this statement is true then we're all dead.. Capella is around 45LY away


edit: reading previous posts just trashed above quote.

[This message has been edited by PhReAk (edited 05-12-2001).]
Title: Idea for a background effect
Post by: Shrike on May 12, 2001, 05:53:00 pm
pretty....look at the supernova

 (http://observe.ivv.nasa.gov/nasa/space/stellardeath/graphics/aat048_a.jpg)

Oh, and BTW, if the Tantalus nebula (that one above) were the same distance as the orion nebula, it'd take up something like a quarter of the sky......
Title: Idea for a background effect
Post by: Arnav on May 13, 2001, 11:38:00 am
I remember a mission I played... yes, I think Temporal Mechanics' demo mission - it had a tiny sun with a bunch of nebula around it, and one pilot said "Oooh, that was Capella" and I thought "woah".
It was TM's demo mission, right?  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)


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Title: Idea for a background effect
Post by: Kazan on May 19, 2001, 07:59:00 pm
Are you sure that is the Tantalus? it looks like the Turantual

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[This message has been edited by Kazan (edited 05-19-2001).]
Title: Idea for a background effect
Post by: The Claw on May 20, 2001, 06:37:00 am
I personally think the Crab Nebula is the nebula you fly in in FS2. Why?
 Because it exploded just about the time (when you take in travel time etc. as well) that the ancients got wiped out.

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Title: Idea for a background effect
Post by: Carl on May 20, 2001, 12:48:00 pm
the nebula you fly in in FS2 is way to dense for a natural nebula. we know that the crab isn't that dense.

and a supernova lasts for about 2 weeks.
Title: Idea for a background effect
Post by: Culloden on May 20, 2001, 02:04:00 pm
The average nebula is about as dense as a laboratory vacumn. It's only the fact that we are looking through 1000's of km's of them that makes them look so dense.
Title: Idea for a background effect
Post by: Jabu on May 20, 2001, 02:53:00 pm
But what fun would that be?  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/biggrin.gif)
Title: Idea for a background effect
Post by: wEvil on May 21, 2001, 01:44:00 am
so maybe it wasn't a supernova nebula at all...

perhaps it was the accretion disk of a protostar?
Title: Idea for a background effect
Post by: Setekh on May 21, 2001, 06:55:00 am
Accretion disks are round  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)
Title: Idea for a background effect
Post by: wEvil on May 21, 2001, 06:59:00 am
they're an ellipse...but before actual planets and the protostar form it has to go through a period of collapse, where the gas and nebular material will be dense but still occupy a large (roughly spherical) volume of space.

Title: Idea for a background effect
Post by: Setekh on May 21, 2001, 07:08:00 am
I wonder how nebulae get twisted up into those wierd shapes (like the Horsehead Nebula).
Title: Idea for a background effect
Post by: Jabu on May 21, 2001, 07:12:00 am
*cough*
 (http://koti.mbnet.fi/jabu/funeb.jpg)
Title: Idea for a background effect
Post by: Setekh on May 21, 2001, 07:14:00 am
 (http://dynamic.gamespy.com/~freespace/ubb/noncgi/lol.gif)
Title: Idea for a background effect
Post by: Bobboau on May 21, 2001, 10:54:00 am
is that nebula flicking us off?

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Title: Idea for a background effect
Post by: Fineus on May 21, 2001, 11:20:00 am
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Title: Idea for a background effect
Post by: Violentg on May 23, 2001, 03:12:00 pm
 (http://dynamic.gamespy.com/~freespace/ubb/noncgi/lol.gif) that looks freaky

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