Hey there
been trying to map a texture onto a 3d cube. but kinda stuck. do i need to use vertex points instead of cube to get access to texture. if so the math is above me.

basically what i want to do is slice an image (in the end actually video) and then be able to manipulate it in 3d. i've got it to work in flash, but hit deadend in processing.

here's my (messy) cube code:



import processing.opengl.*;
int yy, counter,boxht, boxwidth;
Slice [] slice = new Slice[20];
float[] t = new float[20];
float[] speed = new float[20];
float target;
void setup()
{
 size(800, 600, OPENGL);
 noStroke();
 yy=0;
boxht=30;
boxwidth=300;
 counter=0;
for (int i = 180; i <= height-180; i += boxht) {
 slice[counter] = new Slice(i,counter);
counter++;  
}
}

void draw()
{
 defineLights();
 background(0);
 for (int i = 0; i <9; i++) {
   slice[i].updateslice();
   }

}


void defineLights() {
 // Orange point light on the right
 pointLight(150, 100, 0,   // Color
            200, -150, 0); // Position

 // Blue directional light from the left
 directionalLight(0, 102, 255, // Color
                  width/2, height/2, -100);    // The x-, y-, z-axis direction
                 
                    // Blue directional light from the left
 directionalLight(0, 202, 0, // Color
                  -1, 0, 0);    // The x-, y-, z-axis direction

 // Yellow spotlight from the front
 spotLight(255, 255, 109,  // Color
           0, 40, 200,     // Position
           0, -0.5, -0.5,  // Direction
           PI / 2, 2);     // Angle, concentration
}


class Slice{
int myx,myy,yy, me;
float speed, mytarget, currentpos;
 
 Slice(int y, int c) {
   speed=10;
   mytarget=currentpos=0;
   myy=y;
   me=c;
   }
   
void updateslice(){
            if (mouseY>myy && mouseY<myy+boxht){

mytarget+=(mouseX-pmouseX)*2;


}
pushMatrix();
translate(width/2, myy);


currentpos += (mytarget-currentpos)/(speed);
otherspeeds(me);
rotateY(map(currentpos, 0, height, 0, PI));  
box(boxwidth, boxht, boxwidth);
popMatrix();
}


void otherspeeds(int blokhit){
for (int i = 0; i <9; i++) {
if (i!=blokhit){
//  float vx = slice[i].currentpos-slice[blokhit].mytarget;
//if (vx>0) {
//xaccel = -(vx*vx)/(acceleration);
//} else {
//xaccel = (vx*vx)/(acceleration);
//}
//slice[i].speed = (slice[i].speed+xaccel)*friction;
slice[i].speed= 10+abs(i-blokhit*2)*5;
}
}
}
}