StefanPetrick

//It will swap part B and C:

void SortMyLeds() {
  for (byte i=20; i < 30; i++) {
    CRGB buffer = leds[i];
    leds[i] = leds[i-10];
    leds[i-10] = buffer;
  }
}

StefanPetrick

int width = 300;                  // crop window resolution
int height = 550;

int centerX = int(width * 0.72);  // precalculated centre of the spiral
int centerY = int(height * 0.72);

float e = 2.71828; // Eulers number

void setup() {     // just relevant for Processing
  size(width, height);

StefanPetrick

#include<FastLED.h>

#define REDPIN   3
#define GREENPIN 6
#define BLUEPIN  9

#define NUM_LEDS    1
//#define LED_PIN     12
//#define BRIGHTNESS  255
//#define LED_TYPE    WS2812

StefanPetrick

/*
         FunkyNoise 1.0
        ----------------              
         A Collection Of 
           Animations 
      And Helper Functions 
 
  for two dimensional led effects
     on the 32x32 SmartMatrix.
 

StefanPetrick

// the animation itself
// basically just moves the noise in 2 dimensions
// and oscillates the border for the mapping methods

void CrossNoise2() {

  currentPalette = RainbowStripeColors_p;
  noisesmoothing = 20;

  y[0] += 100;

StefanPetrick

#include<FastLED.h>

#define LED_PIN     12
#define BRIGHTNESS  255
#define LED_TYPE    WS2812
#define COLOR_ORDER GRB

#define NUM_LEDS (240)

CRGB leds[NUM_LEDS];

StefanPetrick

// as showed on youtube
void noise_audio2() {
  read_audio();
  CRGBPalette16 Pal( pit3 ); // the red one
  y[0] += (bands[4] - 10) * 4;
  scale_x[0] = 10000 - (bands[0] * 40);
  scale_y[0] = scale_x[0];
  byte layer = 0;
  for (uint8_t i = 0; i < Width; i++) {
    uint32_t ioffset = scale_x[layer] * (i - CentreX);

StefanPetrick

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;

StefanPetrick

#include<SmartMatrix.h>
#include<FastLED.h>

#define kMatrixWidth  32
#define kMatrixHeight 32

byte CentreX =  (kMatrixWidth / 2) - 1;
byte CentreY = (kMatrixHeight / 2) - 1;

#define NUM_LEDS (kMatrixWidth * kMatrixHeight)

StefanPetrick

/*
  A FastLED matrix example:
  A simplex noise field fully modulated and controlled by itself
  written by
  Stefan Petrick 2017
  Do with it whatever you like and show your results to the FastLED community
  https://plus.google.com/communities/109127054924227823508
*/

#include "FastLED.h"