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 Black Holes...

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Albalrogue
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PostSubject: Black Holes...   Sat Nov 06, 2010 11:49 am

I believe that black holes will be implemented into the game. But my question is "what would they look like?".

I am quite uncomfortable with black holes being believed to be actual cosmic warterholes. It is rather unrealistic...
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Commander Keen
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 12:40 pm

Albalrogue wrote:
I believe that black holes will be implemented into the game. But my question is "what would they look like?".

I am quite uncomfortable with black holes being believed to be actual cosmic warterholes. It is rather unrealistic...

Depends on where they are and "what they are doing". Blackhole sucking a star will certainly be different than a blackhole in void.
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Albalrogue
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 1:53 pm

Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 2:45 pm

Albalrogue wrote:
Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
Well I'd think that they would behave similar to real ones, which is pretty much what you described.
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Albalrogue
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 3:12 pm

Poisson wrote:
Albalrogue wrote:
Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
Well I'd think that they would behave similar to real ones, which is pretty much what you described.
Witch desciption? Holes or spheres?

Knowing that black holes are imploded stars, the same way that white dwarfs are imploding stars. It would be more logic that a black hole is a really dense sphere.
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Poisson
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 3:47 pm

Albalrogue wrote:
Poisson wrote:
Albalrogue wrote:
Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
Well I'd think that they would behave similar to real ones, which is pretty much what you described.
Witch desciption? Holes or spheres?

Knowing that black holes are imploded stars, the same way that white dwarfs are imploding stars. It would be more logic that a black hole is a really dense sphere.
Yes, I meant spheres. Dense spheres.
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Albalrogue
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 3:48 pm

Poisson wrote:
Albalrogue wrote:
Poisson wrote:
Albalrogue wrote:
Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
Well I'd think that they would behave similar to real ones, which is pretty much what you described.
Witch desciption? Holes or spheres?

Knowing that black holes are imploded stars, the same way that white dwarfs are imploding stars. It would be more logic that a black hole is a really dense sphere.
Yes, I meant spheres. Dense spheres.
Ok.
What do others think?
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US_of_Alaska
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PostSubject: Re: Black Holes...   Sat Nov 06, 2010 8:12 pm

Albalrogue wrote:
Poisson wrote:
Albalrogue wrote:
Poisson wrote:
Albalrogue wrote:
Well, what I meant by "what they would look like" I meant "what they would be like". Would it just be like a big hole sucking everything in or something else? Like a smal star with huge huge huge gravitation, so big that light cannot escape (a small invisible sphere).
Well I'd think that they would behave similar to real ones, which is pretty much what you described.
Witch desciption? Holes or spheres?

Knowing that black holes are imploded stars, the same way that white dwarfs are imploding stars. It would be more logic that a black hole is a really dense sphere.
Yes, I meant spheres. Dense spheres.
Ok.
What do others think?
Very high gravity sphere that sucks in light.
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Commander Keen
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 7:03 am

Now, how will we do them graphically? A black sphere is probably not going to work, same with a black cloud billboard. I think this will need a little bit of shaders.
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Albalrogue
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 7:15 am

Commander Keen wrote:
Now, how will we do them graphically? A black sphere is probably not going to work, same with a black cloud billboard. I think this will need a little bit of shaders.
A black hole is invisible, therefore it should be just a small sphere without any skins. But if it is needed then you should just make a black sphere with a black halo.
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 9:53 am

Black sphere with black skin is going to look like a planet, with added halo-like billboard it's going to look like an eclipsed sun. I think we will need shaders to disrupt the light.
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Poisson
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 2:25 pm

I'd think they would look something like this when a background (like a galaxy) is behind them, like this, or like this if there is not much around them.
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Invader
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 3:49 pm

Poisson wrote:
I'd think they would look something like this when a background (like a galaxy) is behind them, like this, or like this if there is not much around them.

That seems about right.
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~sciocont
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 4:30 pm

guys, a black hole is just a black hole.
It's big, black, and circular. And did I mention it's black?
http://en.wikipedia.org/wiki/Black_hole

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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 4:57 pm

Yeah, black holes are like that, but they still deform light around themselves.
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~sciocont
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 5:07 pm

Commander Keen wrote:
Yeah, black holes are like that, but they still deform light around themselves.
Any mass diffracts light. That's why shadows are fuzzy. The more mass, the more the light is diffracted, which leads to the gravitational lensing you are talking about.

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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 5:20 pm

~sciocont wrote:
Any mass diffracts light. That's why shadows are fuzzy. The more mass, the more the light is diffracted, which leads to the gravitational lensing you are talking about.

In reality, it works like that, but we cannot put diffraction around every object.
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~sciocont
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PostSubject: Re: Black Holes...   Sun Nov 07, 2010 7:08 pm

Commander Keen wrote:
~sciocont wrote:
Any mass diffracts light. That's why shadows are fuzzy. The more mass, the more the light is diffracted, which leads to the gravitational lensing you are talking about.

In reality, it works like that, but we cannot put diffraction around every object.
I'm not saying we need to. our graphics engine may or may not produce "fuzzy" shadows.

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Commander Keen
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PostSubject: Re: Black Holes...   Mon Nov 08, 2010 10:25 am

~sciocont wrote:
Commander Keen wrote:
~sciocont wrote:
Any mass diffracts light. That's why shadows are fuzzy. The more mass, the more the light is diffracted, which leads to the gravitational lensing you are talking about.
In reality, it works like that, but we cannot put diffraction around every object.
I'm not saying we need to. our graphics engine may or may not produce "fuzzy" shadows.

OK then.
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eumesmo
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PostSubject: Re: Black Holes...   Mon Nov 08, 2010 10:56 am

diffraction should only occour for things with a mass iqual or greater to the one of a star....
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~sciocont
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PostSubject: Re: Black Holes...   Mon Nov 08, 2010 6:31 pm

eumesmo wrote:
diffraction should only occour for things with a mass iqual or greater to the one of a star....
^see above post.
diffraction in the form of lensing would only be applied to very massive objects.

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Albalrogue
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PostSubject: Re: Black Holes...   Wed Nov 10, 2010 2:57 pm

When you say it's circular, what do you mean by that? Disk like?
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Poisson
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PostSubject: Re: Black Holes...   Wed Nov 10, 2010 10:23 pm

Albalrogue wrote:
When you say it's circular, what do you mean by that? Disk like?
Spherical.
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Albalrogue
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PostSubject: Re: Black Holes...   Thu Nov 11, 2010 5:15 am

Poisson wrote:
Albalrogue wrote:
When you say it's circular, what do you mean by that? Disk like?
Spherical.
Ok.
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Pezzalis
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PostSubject: Re: Black Holes...   Fri Nov 12, 2010 12:33 am

Black holes yay something I know a bit about!

Ok basically as scio pointed out and I guess most of us figured out... Black holes are holes in space, which are black.

Basically, or more or less physically they are a tiny point in space with a HUGE mass. IE something the size of your fingernail which weighs 8 times as much as the sun. This mass is called a singularity

Because of this extreme amount of mass the light passing around or nearby it is warped around it, as we have established.

Light that passes within a certain radius is sucked into it. This radius is called the event horizon. The event horizon is basically the area where all the light literally disappears. Not because it has gone, but because the escape velocity required to exit the singularity's gravitational field is greater than that of the speed of light.

In some black holes you will see matter such as star and planet debris, gas etc being sucked into the singularity but the light from these objects cuts out at the even horizon. So all around the event horizon there will be a disc of debris being sucked into it. This doesn't always have to be the case. Sometimes you may come across a black hole which has no debris. It will only be visible if there is light behind it, which will warp and disappear as you rotate about it.

This light warping actually happens in spore from the star map.
Where spore failed is where you can use black holes as wormholes.

If you were to inadvertently fly your spaceship into a black hole, Einsteins beautiful law of relativity concludes that because you are approaching such an extreme amount of mass, time would begin to slow down. Right down. But it would remain constant in your experience. If you were looking out at the stars you would begin to see them move about, thousands of years would go by in seconds. Then you would be spaghetti-fied. Which is when all of the matter in your body stretches out towards the singularity. You would probably be dead from the massive forces involved already. I doubt it would be a pleasant experience.

Now some scientists (well lots actually) believe that at the center of many galaxies including our own is a super massive blackhole. A black hole SO massive that is causes our entire galaxy to spin. I take it these will be in game somehow?

Heh sorry about the rant, I am fascinated by the things
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