Using Pixels[] Array over Points • trying to move Pixels(XY) off screen like Points

[glv]

Hello,

Cool stuff!

@Gus_Fermin

A beginner here

I feel like that with every new topic I learn.

I was inspired and sharing my initial exploration of this:

Code here

// Pixel Exploration
// v1.0.0
// GLV 2020-10-05
// Inspired by topic:
// https://discourse.processing.org/t/using-pixels-array-over-points-trying-to-moving-pixels-xy-off-screen-like-points/24309

PImage img, img2, img3;
float mod;
int counter;
int choice = 1;

void setup() 
  {
  size(500, 500, P3D);
  frameRate(60);
  img = loadImage("http://learningprocessing.com/code/assets/sunflower.jpg");
  //img.loadPixels();
  background(0);
  
  img2 = createImage(400, 400, ARGB);
  //img2.loadPixels();
  for (int i = 0; i < img2.width*img2.height ; i++)
    {
    img2.pixels[i] = color(0, 255);
    }
  //img2.updatePixels();
  }

void draw() 
  {  
  //Sinusoidal modulation from 0 to 2
  mod = 1+1*sin(counter*TAU/500-TAU/4);
  counter++;
  
  switch(choice) 
    {
    case 1: 
      println("Plot 1");
      plot1();
      break;
    case 2: 
      println("Plot 2");
      plot2();
      break;
    case 3: 
      println("Plot 3");
      plot3();
      break;
    case 4: 
      println("Plot 4");
      plot4();
      break;      
    default:
      println("Woops!"); 
      break;
    }

  surface.setTitle(str(frameRate));
  }
  
//**********************************************************************************

void plot1()
  {
  fill(0, 5);
  noStroke();
  rect(0, 0, width, height);  
  
  for (int x = 0; x < img.width; x++ ) 
    {
    for (int y = 0; y < img.height; y++ ) 
      {
      // Pixel location and color
      color c = img.get(x, y);
      float sz = (brightness(c)/255)*mod;
      set(int(x*sz), int(y*sz), c);      
      }
    }  
  }

//**********************************************************************************

void plot2()
  {  
  fill(0, 5);
  noStroke();
  rect(0, 0, width, height);  
  
  for (int x = 0; x < img.width; x++ ) 
    {
    for (int y = 0; y < img.height; y++ ) 
      {
      // Pixel location and color
      color c = img.pixels[x+img.width*y];
      float sz = (brightness(c)/255)*mod;
      set(int(x*sz), int(y*sz), c);
      }
    }
  }

//**********************************************************************************  
  
void plot3()
  {
  fill(0, 5);
  noStroke();
  rect(0, 0, width, height);    
    
  for (int x = 0; x < img.width; x++ ) 
    {
    for (int y = 0; y < img.height; y++ ) 
      {
      // Pixel location and color
      color c = img.pixels[x+img.width*y];
      float sz = (brightness(c)/255)*mod;
      //sz = 1; // Try this to see original image.
      img2.pixels[int(x*sz)+int(y*sz)*400] = c;    
      }
    }
  img2.updatePixels();  
  image(img2, 0, 0);     
  }
  
//**********************************************************************************  
  
void plot4()
  {
  // Sets pixel array to a fixed color with transparency  
  for (int i = 0; i < img2.width*img2.height ; i++)
    {
    img2.pixels[i] = color(0, 5);
    }
  
  for (int x = 0; x < img.width; x++ ) 
    {
    for (int y = 0; y < img.height; y++ ) 
      {
      // Pixel location and color
      color c = img.pixels[x+img.width*y];
      float sz = brightness(c)/255*mod;
      //sz = 1; // Try this to see original image.
      //c = color(255, 255, 0); //Test with fixed color
      img2.pixels[int(x*sz)+int(y*sz)*400] = c;      
      }
    }
  img2.updatePixels();  
  image(img2, 0, 0);    
  }  
  
void keyPressed()
  {
  counter = 0;
  choice++;
  if (choice >4)
    choice = 1;
  }

I did not scrutinize your code and instead did an exploration of this.

:)