#include <FastLED.h>
#define FNL_IMPL
#include "FastNoise.h"
// Create noise state
fnl_state noise;
#define WIDTH 16
#define HEIGHT 16
#define NUM_LEDS ((WIDTH) * (HEIGHT))
CRGB leds[NUM_LEDS + 1];
uint16_t XY(uint8_t x, uint8_t y) {
if (x >= WIDTH) return NUM_LEDS;
if (y >= HEIGHT) return NUM_LEDS;
if (y & 1)
return (y + 1) * WIDTH - 1 - x;
else
return y * WIDTH + x;
}
void setup() {
// Configure noise state
noise = fnlCreateState();
noise.noise_type = FNL_NOISE_OPENSIMPLEX2;
Serial.begin(115200);
FastLED.addLeds<NEOPIXEL, 3>(leds, NUM_LEDS);
FastLED.setCorrection(UncorrectedColor);
FastLED.setTemperature(UncorrectedTemperature);
FastLED.setDither(DISABLE_DITHER);
}
void loop() {
static int z = 0;
z += 1;
for (int y = 0; y < HEIGHT; y++) {
for (int x = 0; x < WIDTH; x++) {
float n = fnlGetNoise3D(&noise, x, y, z);
uint8_t c = 127.5f + n * 127.5f;
leds[XY(x, y)] = CRGB(c, c, c);
}
}
FastLED.show();
static uint8_t fps_frame = 0;
if (!++fps_frame)
Serial.println(FastLED.getFPS());
}