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turtle
Account closed
Registered: Mar 2005
Posts: 44 |
plasma ?? what is it
someone who can explain what plasma is? certainly many who wonder what it is =)
is it real time ?
or
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Mace
Registered: May 2002
Posts: 1799 |
AFAIK, plasma is the effect where colour transistions are plotted on the screen in various interfering more or less repeating patterns. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
grahams definition is kinda best :) the "plasma" demo effect is kindof a visualation of the molecular density in a certain medium (which happens to be in plasma state).
another famous visualisation is the so called "lava lamp" =)
(that definition excludes the so called double-sinus plasma routines - these dont visualise a chaotic plasma state, but a simple cyclic pattern. BORING! =P) |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
It ain't my own definition: Plasma
:D |
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HCL
Registered: Feb 2003
Posts: 728 |
Quote: It ain't my own definition: Plasma
:D
Oh man, that plasma lamp is probably the coolest thing on earth!! |
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Oswald
Registered: Apr 2002
Posts: 5094 |
Quote: grahams definition is kinda best :) the "plasma" demo effect is kindof a visualation of the molecular density in a certain medium (which happens to be in plasma state).
another famous visualisation is the so called "lava lamp" =)
(that definition excludes the so called double-sinus plasma routines - these dont visualise a chaotic plasma state, but a simple cyclic pattern. BORING! =P)
that definition excludes everything we call a plasma regarding demos. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
not at all. a perlin noise plasma for example is pretty close. even with simple sinus functions you can make something that atleast looks very convincing (you'll certainly need more than two though =P). |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Yeps, in fact even JPEG images are just many small 8x8 pixel sinus plasmas :D |
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Mace
Registered: May 2002
Posts: 1799 |
For the Dutch plasma could also be a pissing mother...
*sigh* |
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Oswald
Registered: Apr 2002
Posts: 5094 |
Quote: not at all. a perlin noise plasma for example is pretty close. even with simple sinus functions you can make something that atleast looks very convincing (you'll certainly need more than two though =P).
to begin with plasma is a state of matter (ionised gas) where atoms and electrons become (partly) separated. there's no molecular plasma what you blabble about, thus there's no fx that - even by mistake- can look "kindof" the same. |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
Quote:
to begin with plasma is a state of matter (ionised gas) where atoms and electrons become (partly) separated.
... which results in constant fluctation of molecular density, similar to fluid dynamics ...
Quote:
thus there's no fx that - even by mistake- can look "kindof" the same.
... which depending on visualisation method, pretty much equals different type of plasmas.
another famous example are various effects achived by the marching cubes technique - which does no more than visualising the density of "matter". |
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