Neopixel setBrightness command

[hammersmith]

Hello,

I'm wondering about the setBrightness command in the arduino Neopixel Library. I know that the Neopixel need 24 Bits of data 8 Bits per Color. So there are no Bits for Brightness. Isnt it so that the Brightness of the different colors is set by the value of the byte (means 0 = off 255 = very bright)?

so I wonder what purpose this command has. Maybe someone could explain it? :)

Thanks! :)

[adafruit_support_rick]

it sets a global multiplier (actually, it's the numerator of a fractional multiplier).

For instance, if you call setBrightness(64), followed by setPixel(i, 255, 192, 128), setPixel will multiply each of r, g, and b by (64/255), so you wind up actually setting the pixel to (64, 48, 32)

[hammersmith]

Oh thats kind of usefull thanks :D