do these take into account brightness intensities or just colors? 

Darcy Johnston wrote:
> 
> Here are the light colors as I mentioned in p.b.i - "wip needs help"
> 
> Hope they prove to be usefull to someone
> Darcy
> 
> #declare CandleFlame = rgb <247,233,232>/255;
> 
> #declare Lamp1 = rgb <249, 235, 235>/255;
> #declare Lamp2 = rgb <243,228,231>/255;
> #declare Lamp3 = rgb <247,236,234>/255;
> #declare Lamp4 = rgb <243,229,229>/255;
> #declare Lamp5 = rgb <244,236,233>/255;
> #declare Lamp6 = rgb <249,239,237>/255;
> #declare Lamp7 = rgb <249,238,236>/255;
> #declare Lamp8 = rgb <250,239,237>/255;
> 
> #declare GasLamp60Watt = rgb <248,237,235>/255;
> #declare GasLamp100Watt = rgb <248,240,237>/255;
> #declare GasLamp500Watt = rgb <249,244,240>/255;
> #declare GasLamp1000Watt = rgb <249,244,241>/255;
> 
> #declare HighIntesitySunArc = rgb 253/255;
> #declare WhiteFlameCarbonArc = rgb <245,246,248>/255;
> 
> #declare BlueFlashLamp = rgb <242,252,254>/255;
> #declare M2BFlashLamp = rgb <238,246,249>/255;
> #declare ShrededFoilClearFlashLamp = rgb 251/255;
> #declare HighspeedFlashTubes = rgb <236,245,250>/255;
> 
> #declare WarmWhiteFluorescentLamp = rgb 250/255;
> #declare CoolWhiteFluorescentLamp = rgb <245,251,251>/255;
> #declare ProjectionLamp500Watt = rgb <255,248,246>/255;
> #declare FloodLamp = rgb <247,246,242>/255;
> #declare WhiteFloodLamp = rgb <255,252,251>/255;
> #declare ReflectorFloods = rgb 244/255;
> #declare DaylightFloodLamp = rgb <245,250,253>/255;
> #declare DaylightFluorenscentLamp = rgb <243,251,253>/255;
> 
> #declare DirectSunlight = rgb <248,252,251>/255;
> #declare NoonSunlight = rgb <237,240,245>/255;
> #declare HighNoonSunlight = rgb <238,246,249>/255;
> #declare SummerSunlight = rgb <241,250,255>/255;
> #declare OvercastSunlight = rgb <233,240,246>/255;
> #declare HazySunlight = rgb <234,243,250>/255;
> 
> #declare BlueSky1 = rgb <230,241,245>/255;
> #declare BlueSky2 = rgb <229,239,248>/255;
> #declare BlueSky3 = rgb <227,237,246>/255;
> #declare BlueSky4 = rgb <229,238,247>/255;
> #declare BlueSky5 = rgb <228,237,246>/255;
> #declare BlueSky6 = rgb <226,235,244>/255;
> #declare BlueSky7 = rgb <227,236,245>/255;
> #declare BlueSkyOverWater = rgb <230,234,245>/255;

Post a reply to this message

ryan constantine wrote:
> 
> do these take into account brightness intensities or just colors?

Well, I haven't dig up most of the intensity data but here's an example:

One standard candle:             13 lumens
  60 watt incandescent lamp:  1 000 lumens
1500 watt incandescent lamp: 34 000 lumens

So a 60w light is 80 times brighter than one candle. 

Light `flow' from a lamp is measured in lumens. A uniform point source
of one candela (luminous intensity in any direction [defined for 555 nm
radiant intensity of 1/683 watt per steradian] ~ one dinner candle) at the
center of sphere of 1 foot radius gives 1 lumen per square foot. This is
also one lumen per steradian. Area of the one foot sphere is 12.57 sq. ft.
so the 1 cd. source produces 12.57 lumens.


______________________________________________________________________
Kari Kivisalo                                  http://www.kivisalo.net

Post a reply to this message

"Kari Kivisalo" <kar### [at] kivisalonet> wrote in message
news:39C480E0.D52CBAEC@kivisalo.net...
| ryan constantine wrote:
| >
| > do these take into account brightness intensities or just colors?
|
| So a 60w light is 80 times brighter than one candle.
|
| Light `flow' from a lamp is measured in lumens. A uniform point source
| of one candela (luminous intensity in any direction [defined for 555 nm
| radiant intensity of 1/683 watt per steradian] ~ one dinner candle) at the
| center of sphere of 1 foot radius gives 1 lumen per square foot. This is
| also one lumen per steradian. Area of the one foot sphere is 12.57 sq. ft.
| so the 1 cd. source produces 12.57 lumens.

Now can you do the change according to eye pupil size?  Just kidding.

Nice list Darcy, I notice I need to change my thinking about sunlight color
if I follow along with this since I almost always use red larger than green,
green larger than blue instead of a bluer sunlight.
The sky colors are read by me to be quite light cyan, almost gray-blue.  I
haven't checked any of these yet.

Bob

Post a reply to this message

this info. plus that in the color list are precisely the kinds of
information i think should be worked out and circulated.  so any of you
guys willing and able to do this kind of research would be much
appreciated.

Kari Kivisalo wrote:
> 
> ryan constantine wrote:
> >
> > do these take into account brightness intensities or just colors?
> 
> Well, I haven't dig up most of the intensity data but here's an example:
> 
> One standard candle:             13 lumens
>   60 watt incandescent lamp:  1 000 lumens
> 1500 watt incandescent lamp: 34 000 lumens
> 
> So a 60w light is 80 times brighter than one candle.
> 
> Light `flow' from a lamp is measured in lumens. A uniform point source
> of one candela (luminous intensity in any direction [defined for 555 nm
> radiant intensity of 1/683 watt per steradian] ~ one dinner candle) at the
> center of sphere of 1 foot radius gives 1 lumen per square foot. This is
> also one lumen per steradian. Area of the one foot sphere is 12.57 sq. ft.
> so the 1 cd. source produces 12.57 lumens.
> 
> ______________________________________________________________________
> Kari Kivisalo                                  http://www.kivisalo.net

Post a reply to this message

"ryan constantine" <rco### [at] yahoocom> wrote in message
news:39C4559F.1A890BE7@yahoo.com...
> do these take into account brightness intensities or just colors?

The list only accounts for the colors.

Darcy

Post a reply to this message