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

void noise_noise1() {

  CRGBPalette16 Pal( pit );

/* here is how the palette looks like:
DEFINE_GRADIENT_PALETTE( pit ) {
  0,     3,   3,   3,
  64,   13,   13, 255,  // blue
  128,   3,   3,   3,
  192, 255, 130,   3,   // orange

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

#include "FastLED.h"

#define NUM_LEDS 144

// have 3 independent CRGBs - 2 for the sources and one for the output
CRGB leds[NUM_LEDS];
CRGB leds2[NUM_LEDS];
CRGB leds3[NUM_LEDS];

void setup() {

StefanPetrick

/*

  FastLED Fire 2018 by Stefan Petrick

  The visual effect highly depends on the framerate.
  In the Youtube video it runs at arround 70 fps.
  https://www.youtube.com/watch?v=SWMu-a9pbyk

  The heatmap movement is independend from the framerate.
  The actual scaling operation is not.