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Do POV photons have mass? ;)
Does ANYTHING in POV have mass? heehe
POV ver. 9; significant for its introduction of simulation of
Higgs field interaction with light sources...
YKYBRTALNTANPATLW...?
--
Tim Cook
http://empyrean.scifi-fantasy.com
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------
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> Do POV photons have mass? ;)
>
> Does ANYTHING in POV have mass? heehe
Wasn't there a thread 'bout a relativistic raytracer ? ...
I'm sure someone has the link to the animations, of this
raytracers, that does a red/blueshift when in motion ...
> POV ver. 9; significant for its introduction of simulation of
> Higgs field interaction with light sources...
you mean photons won't always fly straight, but be affected by
the mass of objects ? I can think of easier ways of doing a blackhole
> YKYBRTALNTANPATLW...?
^ ^^^^^^^^^
--
Jan Walzer <jan### [at] lzer net>
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Timothy R. Cook <tim### [at] scifi-fantasycom> wrote:
: Does ANYTHING in POV have mass? heehe
POV only simulates infinitely thin surfaces. Such surfaces can't have mass.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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Jan Walzer <jan### [at] lzernet> wrote:
: you mean photons won't always fly straight, but be affected by
: the mass of objects ?
In fact, photons do always "fly" straight.
Of course the meaning of "straight" is actually "the shortest path between
two points in space". In a cartesian coordinate system this is what we usually
think as "a straight line". However, according to the theory, space is not
a cartesian coordinate system, but it's bent due to masses in it. In this kind
of curved space the real shortest path between two points may not look
straight from the point of view of a distant observer. However, from the
point of view of the photon, it always travels straight (ie. the photon
itself always goes ahead, without never turning to any other direction).
I think that the shortest path between two points in a curved space is
called a geodetic line, or something like that.
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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Jan Walzer wrote:
> Wasn't there a thread 'bout a relativistic raytracer ? ...
> I'm sure someone has the link to the animations, of this
> raytracers, that does a red/blueshift when in motion ...
Yeah, maybe revise my version estimate down a few...
> you mean photons won't always fly straight, but be
> affected by the mass of objects ? I can think of
> easier ways of doing a blackhole
Easy? EASY?! Them's fightin' words!
> > YKYBRTALNTANPATLW...?
> ^ ^^^^^^^^^
"...and living next to a nuclear particle accelerator too long..."
(www.fnal.gov)
--
Tim Cook
http://empyrean.scifi-fantasy.com
-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------
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"Warp" <war### [at] tagpovrayorg> schrieb im Newsbeitrag
news:3bf78f14@news.povray.org...
> Timothy R. Cook <tim### [at] scifi-fantasycom> wrote:
> : Does ANYTHING in POV have mass? heehe
>
> POV only simulates infinitely thin surfaces. Such surfaces can't have
mass.
media ....
you could also describe mass-distribution with a 3d-function..
--
Jan Walzer <jan### [at] lzernet>
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you got me ...
it wasn't written as a diplom-thesis, but as a trivial news-comment ...
I thought with some common-sense people are able to read what I meant ...
Of course there are some specialists out there ...
--
Jan Walzer <jan### [at] lzernet>
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I would say geodesic. But i'm not sure anyway.
Will
PS: i shouldn't miss any more differential geometry class.
"Warp" <war### [at] tagpovrayorg> escreveu na mensagem
news:3bf790f8@news.povray.org...
> Jan Walzer <jan### [at] lzernet> wrote:
> : you mean photons won't always fly straight, but be affected by
> : the mass of objects ?
>
> In fact, photons do always "fly" straight.
> Of course the meaning of "straight" is actually "the shortest path
between
> two points in space". In a cartesian coordinate system this is what we
usually
> think as "a straight line". However, according to the theory, space is not
> a cartesian coordinate system, but it's bent due to masses in it. In this
kind
> of curved space the real shortest path between two points may not look
> straight from the point of view of a distant observer. However, from the
> point of view of the photon, it always travels straight (ie. the photon
> itself always goes ahead, without never turning to any other direction).
> I think that the shortest path between two points in a curved space is
> called a geodetic line, or something like that.
>
> --
> #macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
> rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
> ],13),8)-3,10>#end blob{N(array[6]{11117333955,
> 7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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> Does ANYTHING in POV have mass? heehe
Rendering times on my P233 are often so long I'm positive they must
weigh something :)
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> Wasn't there a thread 'bout a relativistic raytracer ? ...
> I'm sure someone has the link to the animations, of this
> raytracers, that does a red/blueshift when in motion ...
http://www.anu.edu.au/physics/Searle/Obsolete/Raytracer.html
Very well worth a look if you haven't seen them before.
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