POV-Ray : Newsgroups : povray.advanced-users : media acts differently when scaled..? Server Time
2 Nov 2024 09:19:11 EDT (-0400)
  media acts differently when scaled..? (Message 1 to 3 of 3)  
From: Jason Dinger
Subject: media acts differently when scaled..?
Date: 10 Oct 1999 01:50:27
Message: <01bf12e4$7bf28cc0$bd11e1cf@jimmy-the-fish>
I'm currently working on a scene that requires me to use a very large flame
however when i scale the media sphere times 100 it looses a lot of quality.
what am i doing wrong?

//begin sample code 

sphere {0,1 pigment {rgbt 1} 
 interior { media { 
 emission 1 intervals 10 samples 10,12 confidence .9999 variance 1/10
 density { spherical scallop_wave turbulence .9 
 color_map {[0 rgb 0][.25 rgb <1,0,0>][.5 rgb <1,1,0>][.75 rgb <1,0,0>][1
rgb 0]} 
 scale .5} } } scale <100,200,100> hollow }
//end sample code


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From: Jason Dinger
Subject: Re: media acts differently when scaled..?
Date: 10 Oct 1999 01:51:20
Message: <01bf12e4$9b575aa0$bd11e1cf@jimmy-the-fish>
sorry...

i meant it "loses" a lot of quality...


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From: Chris Huff
Subject: Re: media acts differently when scaled..?
Date: 10 Oct 1999 10:03:44
Message: <38009D38.82FECA67@compuserve.com>
Not sure about what you mean by it losing quality, but as I understand
it, media is scale-dependant, if you make a flame, then scale it to be 3
times as big, you will have to adjust the density to be 1/3 of what it
was to get the same effect. If you halve the size, you will have to
double the density.


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