jshaw

jshaw

// From Mark Kriegsman's Anti-aliased light bar example: http://pastebin.com/g8Bxi6zW

#include <FastLED.h>
 
#define LED_PIN 13                           // hardware SPI pin SCK
#define NUM_LEDS 250
#define COLOR_ORDER RGB
#define LED_TYPE WS2811
#define MAX_BRIGHTNESS 255                   // watch the power!

jshaw

#include "FastLED.h"

//  MarqueeOverlay
//
//  Code to overlay a 'marquee' effect on top
//  of other animations, e.g. to highlight individual
//  letters of a sign one after another, while
//  still allowing the underlying animations to show through.
//
//  Initially designed for the "YUM cart" for Burning Man 2015.

jshaw

#include <SPI.h>
#include <Ethernet.h>
#include <EthernetUdp.h>
#define USE_OCTOWS2811
#include <OctoWS2811.h>
#include <FastLED.h>

// enter desired universe and subnet  (sACN first universe is 1)
#define DMX_SUBNET 0
#define DMX_UNIVERSE 1 //**Start** universe

jshaw

//
// Circles of dots.
// Created using Processing 3.5.3.
//
// Code by @marcedwards from @bjango.
//
// A GIF of this code can be seen here:
// https://twitter.com/marcedwards/status/1144236924095234053
//

jshaw

float heleCirkel = TWO_PI; //tau

void setup() {
  size(500,500);
  background(0);
  smooth();
}

void draw() {
  background(0);

jshaw

/*
*   Stripe WebGl Gradient Animation
*   All Credits to Stripe.com
*   ScrollObserver functionality to disable animation when not scrolled into view has been disabled and 
*   commented out for now.
*   https://kevinhufnagl.com
*/

jshaw

// fragment shader
//
// RGBA color to RGBA greyscale
//
// smooth transition based on u_colorFactor: 0.0 = original, 1.0 = greyscale
//
// http://www.johndcook.com/blog/2009/08/24/algorithms-convert-color-grayscale/
// "The luminosity method is a more sophisticated version of the average method.
// It also averages the values, but it forms a weighted average to account for human perception.
// We’re more sensitive to green than other colors, so green is weighted most heavily. The formula

jshaw

var p1 = {
	x: 20,
	y: 20
};

var p2 = {
	x: 40,
	y: 40
};

jshaw

Generic 1,2,3 Noise

float rand(float n){return fract(sin(n) * 43758.5453123);}

float noise(float p){
	float fl = floor(p);
  float fc = fract(p);
	return mix(rand(fl), rand(fl + 1.0), fc);
}