import processing.video.*;

 
Capture video;
    float oldbrightestX = 0;
    float oldbrightestY = 0;
    float oldratio=1;
    float thresh = 0.1;
    float vel_thresh = 30;   
    boolean rect_motion = false;
    float coeff=0.2;
    float p1r;
    float p2r;
    float p1g;
    float p2g;
    float p1b;
    float p2b;
    float pb;
   
    float valore_da_mandare = 0;
   

//indicazione libreria
import oscP5.*;
import netP5.*;

//inizializzazioni per il client osc
OscP5 clientOscP5;
NetAddress myRemoteLocation;


 
void setup() {
  size(640, 480, P2D);
  // Uses the default video input, see the reference if this causes an error
  frameRate(10);                              //abbasso la frameRate a 10 fps
 
 //osc
//port_proc=12000;                          ???
//port_sc=57120;
clientOscP5 = new OscP5(this,12000);
myRemoteLocation = new NetAddress("127.0.0.1",12000);

 
  video = new Capture(this, width, height);
  video.start(); 
  noStroke();
  smooth();
}

void draw() {
  if (video.available()) {
    video.read();
   
     loadPixels();
   // Begin loop for width                                                           //per rispecchiare l'immagine orizzontalmente
   for (int i = 0; i < width; i++) {
     // Begin loop for height
     for (int j = 0; j < height; j++) {   
       pixels[j*width+i] = video.pixels[(width - i - 1) + j*width]; // Reversing x to mirror the image

     }
   }
 updatePixels();
   
    image(video, 0, 0, width, height); // Draw the webcam video onto the screen
    float brightestX = 0;
    float brightestY = 0;
    float brightestValue = 0; // Brightness of the brightest video pixel
  
 
    // Search for the brightest pixel: For each row of pixels in the video image and
    // for each pixel in the yth row, compute each pixel's index in the video
    video.loadPixels();
    int index = 0;
   
    for (int y = 0; y < video.height-10; y++) {
      for (int x = 0; x < video.width; x++) {
       
        // Get the color stored in the two reference pixels
        int p1=video.pixels[index];
        int p2=video.pixels[video.width*10+index];
        p1r=((p1 >> 16) & 0xFF);
        p2r=((p2 >> 16) & 0xFF);
        p1g=((p1 >> 8) & 0xFF);
        p2g=((p2 >> 8) & 0xFF);
        p1b=((p1 >> 0) & 0xFF);
        p2b=((p2 >> 0) & 0xFF);
        pb=((p1b-p1r)+(p1b-p1g))+((p2b-p2r)+(p2b-p2g));
        if(pb>brightestValue){
          brightestValue=pb;
          brightestX=x;
          brightestY=y;
        }
        index++;
      }
    }

    // filtro passa-basso IIR
    brightestX=oldbrightestX+(coeff*(brightestX-oldbrightestX));
    brightestY=oldbrightestY+(coeff*(brightestY-oldbrightestY));

    float drx=brightestX-oldbrightestX;    //la derivata del movimento sull'asse x
    float dry=brightestY-oldbrightestY;    // e sull'asse y

    // calcolo velocità del movimento
    float veloc=sqrt(pow(drx,2)+pow(dry,2));

    //check syntax
    //clip(drx,1,100);
    //clip(dry,1,100);
   
  
    float ratio=atan(drx/dry)/log(10);     //calcola l'angolo del vettore 
    float rettilineo=(ratio-oldratio);     

     if (veloc < vel_thresh)
        fill(0, 255, 0, 128);              //se il movimento è troppo lento, il pallino sarà verde
     else if (rettilineo > thresh) {
        rect_motion = false;              //rect_motion è false se il movimento è curvilineo e true se è rettilineo
        fill(255, 204, 0, 128); }         //se il movimento è curvilineo il pallino sarà giallo
     else {
        rect_motion = true;               //sennò sarà rosso
        fill(255, 0, 0, 128); }
       


  float addendo= coefficiente+rosso;              //???

  if (valore_da_mandare > max);
  else if(valore_da_mandare < min)  { 
         valore_da_mandare = false;
        
  }
 
       
   float valore_da_mandare=valore_da_mandare+addendo;
     
    // aggiorno variabili
    oldbrightestX = brightestX;                      
    oldbrightestY = brightestY;
    oldratio=ratio;

    println(rettilineo);
    ellipse(brightestX, brightestY, 200, 200);
  }
}

Hello,
I've already downloaded processing and I have a problem using it with the camera: 'framebuffer error' (on the processing examples too, but not with all of them);
Windows 7 64
Processing 2.0b8
I've installed WinVDIG105 but it's still not working.
I think my webcam works properly...

Framebuffer error (framebuffer unsupported), rendering will probably not work as expected
OpenGL error 1280 at bot beginDraw(): invalid enumerant
OpenGL error 1286 at bot endDraw(): invalid framebuffer operation
OpenGL error 1286 at bot beginDraw(): invalid framebuffer operation

Any suggestions?
Thank you