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    RyanJP
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  • Get all the files from a folder?
    I have several .SVG's I'm loading from a folder, and I'm wondering if there's a way to load everything from a folder regardless of how many objects are in there. I saw the selectFolder() function but I'd like to do it automatically for one specific folder, without a prompt
  • GLSL Resources?
    Hello, just wanted to inquire as to some good sites to download glsl shaders? Or good learning resources (tutorials, etc.)

    I'm very new to the whole shader world but it seems really awesome, looking forward to learning a lot more. I think it would be handy to have a list of sites to browse through when working on new projects for inspiration.

    Specifically right now I'm looking for a simple shader that will mirror half of the screen, so if anyone knows of anything that will do that, I'd be much obliged!
  • Applying the same texture to multiple shapes
    Is this possible? I figured it would save memory but it doesn't seem to work. I can easily just make multiple texture variables but then I'd have to load the same movie 3 times... anyway I'm sure this is possible, here's what I have so far-

    2. import processing.video.*;

    4. Movie waves;

    6. float radius, step;
    7. int points, numShapes;

    9. void setup() {
    10.   size(1280, 720, P2D);
    11.   background(0);

    13.   waves = new Movie(this, "kaleida.mov");
    14.   waves.loop();

    16.   radius = 200;
    17.   points = 3;
    18.   shapes = 3;
    19.   step = TAU / points;
    20. }

    22. void draw() {
    23.   background(0);
    24.  
    25.   for(int h = 0; h < numShapes; h++){
    26.     pushMatrix();
    27.     stroke(255);
    28.     strokeWeight(2);
    29.     translate(width/2, height/2);
    30.     textureMode(NORMAL);
    31.     beginShape();
    32.     texture(waves);
    33.     rotate(h*45);
    34.     for (int i = 0; i < points+1; i++) {
    35.       float theta = step * i;
    36.       float x = (cos(theta) * radius) + radius;
    37.       float y = (sin(theta) * radius) + radius;
    38.       float tx = x/waves.width+0.5;
    39.       float ty = y/waves.height+0.5;

    41.       vertex(x, y, tx, ty);
    42.     }
    43.     endShape();
    44.     popMatrix();
    45.   }

    47.   frame.setTitle(int(frameRate) + " fps");

    49. }

    51. void movieEvent(Movie m) {
    52.   m.read();
    53. }

  • Texturing with a Movie not displaying properly
    Trying to use a movie as a texture but it isn't displaying properly- I just get an extreme close-up, almost like a single pixel. I'm completely new to textures so I might just be missing something incredibly obvious. Here's my code:

    2. import processing.video.*;

    4. Movie waves;

    6. float radius, step;
    7. int points;

    9. void setup(){
    10.   size(1280, 720, P2D);
    11.   background(0);
    12.   
    13.   waves = new Movie(this, "waves.mov");
    14.   waves.loop();
    15.   
    16.   radius = 200;
    17.   points = 6;
    18.   step = TAU / points;
    19. }

    21. void draw(){
    22.   background(0);
    23.   
    24.   image(waves, 0, 0);
    25.   
    26.   pushMatrix();
    27.     stroke(255);
    28.     strokeWeight(2);
    29.     translate(width/2, height/2);
    30.     textureMode(NORMAL);
    31.     beginShape();
    32.       texture(waves);
    33.       for(int i = 0; i < points; i++){
    34.         float theta = step * i;
    35.         float x = cos(theta);
    36.         float y = sin(theta);
    37.         
    38.         vertex(x * radius, y * radius);
    39.       }
    40.     endShape(CLOSE);
    41.   popMatrix();

    43. void movieEvent(Movie m) {
    44.   m.read();
    45. }
  • Kaleidoscope Effect
    Alright, I've been trying in vain to create a dynamic kaleidoscope (able to change the reflecting pattern on the fly). I'm using a movie file and basically trying to take half of the image with PImage and flip it, resample that image and flip it again, but I just can't get it working, and also it's very slow. If anyone has any tips on how to get this going efficiently I'd really appreciate it!!
  • Debugging a leak
    Now that I've got the basics of programming down and can actually make a sketch that does something, I figure it's time to start programming  more   neatly and efficiently. I keep getting this message when I run my program, wondering what it means and how to fix it-

    1. objc[15006]: Object 0x7ff10b0e3730 of class __NSCFDictionary autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug
  • Rendering to PGraphics with classes that do their own drawing?
    So I'm trying to use PGraphics to get a buffer for Syphon. My main program calls three separate classes' "run" function, and each class draws itself within those functions. How do I get those classes to be rendered into the PGraphics object? Do I have to have some sort of return value on the individual "run" functions? Perhaps return another PGraphics object? Quite confused. So my code essentially looks like this right now-


    void draw(){
          canvas.beginDraw();
          object1.run();
          object2.run();
          object3.run();
          canvas.endDraw();
    }
  • Why is this sketch generating janky lines?
      Can't figure out why this simple recursion loop is generating uneven lines on the rectangles. I need accuracy!! Thanks for your help :)
      2. void setup(){
      3.   size(800, 800);
      4.   background(235);
      5.   smooth();
      6.   drawRect(width/2, height/2, 200);
      7. }

      9. void drawRect(float x, float y, float len){
      10.   pushMatrix();
      11.     translate(x, y);
      12.     rotate(radians(45.0));
      13.     
      14.     stroke(0);
      15.     strokeWeight(1);
      16.     noFill();
      17.     rectMode(RADIUS);
      18.     rect(0, 0, len, len);
      19.   popMatrix();
      20.   
      21.   if(len >= 20){
      22.     drawRect(x + len, y, len / 2);
      23.     drawRect(x - len, y, len / 2);
      24.     
      25.     drawRect(x, y + len, len / 2);
      26.     drawRect(x, y - len, len / 2);
      27.   }
      28. }

    • Numeric range conversion?
      Is there a way to convert a range of values to another range?

      For instance I have a node-garden type program with a bunch of nodes floating around and when they get within 100px of one another they draw a line between them. I would like this line to start at 0 alpha and end at a maximum of 255 (were the objects to meet), within the range of 100-0.

      To clarify- when the tested object is 100px away, the line should have an alpha of 0. As it gets closer, the alpha increases accordingly.
    • pdf export help
      im trying to export a pdf frame from an animation using the method outlined on the library's page, but i keep getting this error:

      isRecording(), or this particular variation of it, is not available with this renderer.


      I've tried every renderer and still get the same message..
    • Noob question about switches/rendering
      i have a quick question about the way processing works. how come this doesnt work:

      2. size(500, 500);
      3. background(255);
      4. strokeWeight(5);
      5. smooth();
      6. noFill();

      8. for(int i = 1; i <= 3; i++){
      9.   int colorSelect = i;
      10.   
      11.   switch(colorSelect){
      12.     case 1:
      13.       stroke(#FF0000);
      14.     case 2:
      15.       stroke(#00FF00);
      16.     case 3:
      17.       stroke(#0000FF);
      18.   }
      19.   ellipse(height / 2, width / 2, i * 50, i * 50);
      20. }
      But this does:

      2. size(500, 500);
      3. background(255);
      4. strokeWeight(5);
      5. smooth();
      6. noFill();

      8. for(int i = 1; i <= 3; i++){
      9.   int colorSelect = i;
      10.   
      11.   if(i == 1){
      12.     stroke(#FF0000);
      13.   }
      14.   else if(i == 2){
      15.     stroke(#00FF00);
      16.   }
      17.   else{
      18.     stroke(#0000FF);
      19.   }
      20.   ellipse(height / 2, width / 2, i * 50, i * 50);
      21. }
      Thanks!