fill_noise8()

void fill_noise8	(	CRGB *	leds,
		int	num_leds,
		uint8_t	octaves,
		uint16_t	x,
		int	scale,
		uint8_t	hue_octaves,
		uint16_t	hue_x,
		int	hue_scale,
		uint16_t	time )

Fill an LED array with random colors, using 8-bit noise.

Parameters

leds	pointer to LED array
num_leds	the number of LEDs to fill
octaves	the number of octaves to use for value (brightness) noise
x	x-axis coordinate on noise map for value (brightness) noise
scale	the scale (distance) between x points when filling in value (brightness) noise
hue_octaves	the number of octaves to use for color hue noise
hue_x	x-axis coordinate on noise map for color hue noise
hue_scale	the scale (distance) between x points when filling in color hue noise
time	the time position for the noise field

Definition at line 871 of file noise.cpp.

                           {
 
    if (num_leds <= 0) return;
 
    for (int j = 0; j < num_leds; j += 255) {
        const int LedsRemaining = num_leds - j;
        const int LedsPer = LedsRemaining > 255 ? 255 : LedsRemaining;  // limit to 255 max
 
        if (LedsPer <= 0) continue;
        VARIABLE_LENGTH_ARRAY(uint8_t, V, LedsPer);
        VARIABLE_LENGTH_ARRAY(uint8_t, H, LedsPer);
 
        memset(V, 0, LedsPer);
        memset(H, 0, LedsPer);
 
        fill_raw_noise8(V, LedsPer, octaves, x, scale, time);
        fill_raw_noise8(H, LedsPer, hue_octaves, hue_x, hue_scale, time);
 
        for (int i = 0; i < LedsPer; ++i) {
            leds[i + j] = CHSV(H[i], 255, V[i]);
        }
    }
}

References fill_raw_noise8(), hue_octaves, hue_scale, leds, octaves, scale, VARIABLE_LENGTH_ARRAY, and x.

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