Function fill_2dnoise8

src/noise.cpp.hpp:884–919

}

void fill_2dnoise8(CRGB *leds, int width, int height, bool serpentine,
            fl::u8 octaves, fl::u16 x, int xscale, fl::u16 y, int yscale, fl::u16 time,
            fl::u8 hue_octaves, fl::u16 hue_x, int hue_xscale, fl::u16 hue_y, fl::u16 hue_yscale,fl::u16 hue_time,bool blend) {
  const size_t array_size = (size_t)height * width;
  if (array_size <= 0) return;
  FASTLED_STACK_ARRAY(fl::u8, V, array_size);
  FASTLED_STACK_ARRAY(fl::u8, H, array_size);

  fl::memset(V,0,height*width);
  fl::memset(H,0,height*width);

  fill_raw_2dnoise8((fl::u8*)V,width,height,octaves,x,xscale,y,yscale,time);
  fill_raw_2dnoise8((fl::u8*)H,width,height,hue_octaves,hue_x,hue_xscale,hue_y,hue_yscale,hue_time);

  int w1 = width-1;
  int h1 = height-1;
  for(int i = 0; i < height; ++i) {
    int wb = i*width;
    for(int j = 0; j < width; ++j) {
      CRGB led(CHSV(H[(h1-i)*width + (w1-j)], 255, V[i*width + j]));

      int pos = j;
      if(serpentine && (i & 0x1)) {
        pos = w1-j;
      }

      if(blend) {
        // Safer blending using shift-and-add to avoid ambiguous operator+
        leds[wb+pos] >>= 1;
        leds[wb+pos] += (led >>= 1);
      } else {
        leds[wb+pos] = led;
      }
    }
  }
}


void fill_2dnoise16(CRGB *leds, int width, int height, bool serpentine,