ColorTemperature

enum ColorTemperature

Color temperature values.

These color values are separated into two groups: black body radiators and gaseous light sources.

Black body radiators emit a (relatively) continuous spectrum, and can be described as having a Kelvin 'temperature'. This includes things like candles, tungsten lightbulbs, and sunlight.

Gaseous light sources emit discrete spectral bands, and while we can approximate their aggregate hue with RGB values, they don't actually have a proper Kelvin temperature.

See also

https://en.wikipedia.org/wiki/Color_temperature

Enumerator
Candle	1900 Kelvin
Tungsten40W	2600 Kelvin
Tungsten100W	2850 Kelvin
Halogen	3200 Kelvin
CarbonArc	5200 Kelvin
HighNoonSun	5400 Kelvin
DirectSunlight	6000 Kelvin
OvercastSky	7000 Kelvin
ClearBlueSky	20000 Kelvin
WarmFluorescent	Warm (yellower) flourescent light bulbs.
StandardFluorescent	Standard flourescent light bulbs.
CoolWhiteFluorescent	Cool white (bluer) flourescent light bulbs.
FullSpectrumFluorescent	Full spectrum flourescent light bulbs.
GrowLightFluorescent	Grow light flourescent light bulbs.
BlackLightFluorescent	Black light flourescent light bulbs.
MercuryVapor	Mercury vapor light bulbs.
SodiumVapor	Sodium vapor light bulbs.
MetalHalide	Metal-halide light bulbs.
HighPressureSodium	High-pressure sodium light bulbs.
UncorrectedTemperature	Uncorrected temperature (0xFFFFFF)

Definition at line 46 of file color.h.

             {
    // Black Body Radiators
    // @{
    Candle=0xFF9329 /* 1900 K, 255, 147, 41 */,
    Tungsten40W=0xFFC58F /* 2600 K, 255, 197, 143 */,
    Tungsten100W=0xFFD6AA /* 2850 K, 255, 214, 170 */,
    Halogen=0xFFF1E0 /* 3200 K, 255, 241, 224 */,
    CarbonArc=0xFFFAF4 /* 5200 K, 255, 250, 244 */,
    HighNoonSun=0xFFFFFB /* 5400 K, 255, 255, 251 */,
    DirectSunlight=0xFFFFFF /* 6000 K, 255, 255, 255 */,
    OvercastSky=0xC9E2FF /* 7000 K, 201, 226, 255 */,
    ClearBlueSky=0x409CFF /* 20000 K, 64, 156, 255 */,
    // @}
 
    // Gaseous Light Sources
    // @{
    WarmFluorescent=0xFFF4E5 /* 0 K, 255, 244, 229 */,
    StandardFluorescent=0xF4FFFA /* 0 K, 244, 255, 250 */,
    CoolWhiteFluorescent=0xD4EBFF /* 0 K, 212, 235, 255 */,
    FullSpectrumFluorescent=0xFFF4F2 /* 0 K, 255, 244, 242 */,
    GrowLightFluorescent=0xFFEFF7 /* 0 K, 255, 239, 247 */,
    BlackLightFluorescent=0xA700FF /* 0 K, 167, 0, 255 */,
    MercuryVapor=0xD8F7FF /* 0 K, 216, 247, 255 */,
    SodiumVapor=0xFFD1B2 /* 0 K, 255, 209, 178 */,
    MetalHalide=0xF2FCFF /* 0 K, 242, 252, 255 */,
    HighPressureSodium=0xFFB74C /* 0 K, 255, 183, 76 */,
    // @}

    UncorrectedTemperature=0xFFFFFF /* 255, 255, 255 */
} ColorTemperature;