Maxwell Render

Maxwell Render Information Repository
It is currently Thu May 23, 2013 7:07 pm

All times are UTC + 1 hour [ DST ]




Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject:
PostPosted: Wed Nov 30, 2005 11:13 am 
User avatar

Joined: Mon Feb 21, 2005 12:54 pm
Posts: 199
Location: Slovakia/Ireland/Italy
Hehe, not a laser but it`s kinda cool!!
nice for spot lights..

_________________
Alpha is for the weak!!

www.psanitra.com/2006
AMD X2 4400 OC to 2.75Ghz, 2GB RAM ,WIN XP


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 30, 2005 11:21 am 
User avatar

Joined: Sat Mar 12, 2005 4:59 pm
Posts: 309
Location: Germany
Hi!
A laser is pretty complex so I'm not shure whether M~R can simulate this effect, since it's based on atom physics...

see more at howstuffworks

Quote:
A laser is a device that controls the way that energized atoms release photons. "Laser" is an acronym for light amplification by stimulated emission of radiation, which describes very succinctly how a laser works.
Although there are many types of lasers, all have certain essential features. In a laser, the lasing medium is “pumped” to get the atoms into an excited state. Typically, very intense flashes of light or electrical discharges pump the lasing medium and create a large collection of excited-state atoms (atoms with higher-energy electrons). It is necessary to have a large collection of atoms in the excited state for the laser to work efficiently. In general, the atoms are excited to a level that is two or three levels above the ground state. This increases the degree of population inversion. The population inversion is the number of atoms in the excited state versus the number in ground state.

Once the lasing medium is pumped, it contains a collection of atoms with some electrons sitting in excited levels. The excited electrons have energies greater than the more relaxed electrons. Just as the electron absorbed some amount of energy to reach this excited level, it can also release this energy. As the figure below illustrates, the electron can simply relax, and in turn rid itself of some energy. This emitted energy comes in the form of photons (light energy). The photon emitted has a very specific wavelength (color) that depends on the state of the electron's energy when the photon is released. Two identical atoms with electrons in identical states will release photons with identical wavelengths.

_________________
Intel Core i7 860 @ 2.80 GHz - 8GB RAM


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 30, 2005 11:25 am 
User avatar

Joined: Thu Mar 17, 2005 7:23 pm
Posts: 5682
Location: Gothenburg, Sweden
Not bad but still not even close to what a real laser looks like.. you need the semi-transparent/reflective mirror at one end to get the job done. I really hope this will be possible with the RC, i'm gonna try reproducing it this weekend by modeling a laser.

What would be seriously cool is if you could fill a object with a gas shader so you could reproduce gas based lasers and lightbulbs of various types, then you would have something which might be more accurate than IES lights are.

/ Max

_________________
http://maximus3d.blogspot.com/
http://magnus3d.cgsociety.org/gallery/
http://www.flickr.com/photos/magnus3dphoto/


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 30, 2005 12:58 pm 
User avatar

Joined: Sun Apr 10, 2005 1:10 pm
Posts: 94
Location: Delft - Netherlands
congrats you just found out the wave behavior of light. light + light = dark :D Nice maxwell can do this. pretty cool render just let it cook longer 8)

_________________
www.ephilippa.nl


Top
 Profile  
 
 Post subject:
PostPosted: Wed Nov 30, 2005 5:21 pm 
User avatar

Joined: Mon Apr 04, 2005 3:39 pm
Posts: 487
Location: munich germany
hehe this post reminds me of something i have red earlier:
http://www.extremephoton.com/article/Air+Force+Develops+a+Phaser+Gun/166236_1.aspx

PhAsEr set to stun mr.worf

_________________
krz9000.net
---------------------------------------------
maya, max
amd 3800x2, 2gig


Top
 Profile  
 
 Post subject:
PostPosted: Thu Dec 01, 2005 1:18 am 
User avatar

Joined: Sat Mar 26, 2005 2:31 am
Posts: 669
Location: France
Bige wrote:
congrats you just found out the wave behavior of light. light + light = dark :D Nice maxwell can do this. pretty cool render just let it cook longer 8)

Nope. Just weid reflexions. In its current technique, Maxwell can't do diffraction nor show interferences. No waves here for the time being.

http://www.maxwellrender.com/forum/viewtopic.php?t=8100

And quite a few other threads on the same topic.

HD

_________________
Quote:
The journey's FAR from over


LW 9.2 Win XP pro amd64x2 2.2 ghz 4gb ram


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC + 1 hour [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group