RGB Sinusoids

sinusoid3

float speed = 0.3; // speed of the movement along the Lissajous curves
float size = 3;    // amplitude of the curves

for (uint8_t y = 0; y < Height; y++) {
    for (uint8_t x = 0; x < Width; x++) {

      float cx = y + float(size * (sinf (float(speed * 0.003 * float(millis() ))) ) ) - 8;  // the 8 centers the middle on a 16x16
      float cy = x + float(size * (cosf (float(speed * 0.0022 * float(millis()))) ) ) - 8;
      float v = 127 * (1 + sinf ( sqrtf ( ((cx * cx) + (cy * cy)) ) ));
      uint8_t data = v;
      leds[XY(x, y)].r = data;

      cx = x + float(size * (sinf (speed * float(0.0021 * float(millis()))) ) ) - 8;
      cy = y + float(size * (cosf (speed * float(0.002 * float(millis() ))) ) ) - 8;
      v = 127 * (1 + sinf ( sqrtf ( ((cx * cx) + (cy * cy)) ) ));
      data = v;
      leds[XY(x, y)].b = data;

      cx = x + float(size * (sinf (speed * float(0.0041 * float(millis() ))) ) ) - 8;
      cy = y + float(size * (cosf (speed * float(0.0052 * float(millis() ))) ) ) - 8;
      v = 127 * (1 + sinf ( sqrtf ( ((cx * cx) + (cy * cy)) ) ));
      data = v;
      leds[XY(x, y)].g = data;

    }
  }