OSX 10.5.6 on MacPro.

Removing or Commenting out noFill() in the below code leads to an error.
Thread@
http://processing.org/discourse/yabb_beta/YaBB.cgi?board=Syntax;action=display;num=1233939550;start=0#4


[code]
int largo;
float[] x;
float[] y;
float[] z;
int gap = 33;
float noiseX,noiseY,noiseZ,xoff,yoff,zoff,xwalk,ywalk,zwalk,mx2,my2,mz2;
int ind;
float xBin,yBin,avgX,avgY;

void setup(){
size(640,480,P3D);
noiseX = 0.012;
noiseY = 0.023;
noiseZ = 0.008;
largo = 220;
x=new float[largo];
y=new float[largo];
z=new float[largo];
}

void draw(){
xoff = xoff + noiseX;
yoff = yoff + noiseY;
zoff = zoff + noiseZ;
xwalk = sin(noise(xoff)) * width;
ywalk = sin(noise(yoff)) * height;
zwalk = noise(zoff) * height;
background(0);
// noFill(); //Commented this line to reproduce bug.
strokeWeight(0.5);

for(int i =1;i<largo;i++){
x[i-1] = x[i];
y[i-1] = y[i];
z[i-1] = z[i];
}
x[largo-1]=xwalk;
y[largo-1]=ywalk;
z[largo-1]=zwalk;

make();

}


void make(){
beginShape();
for(int i=0; i<largo; i++) {
stroke(i,12,198,i/3);
float mx = x[i];
float my = y[i];
float mz = z[i];

ind = constrain(i+gap,0,largo-1);
mx2 = x[ind];
my2 = y[ind];
mz2 = z[ind];
curveVertex(mx,my,-mz);
curveVertex(mx2,my2,-mz2);
}

endShape();
camFollow();

}

void camFollow(){
xBin = 0;
yBin = 0;
int largo_ = 55;
int plus = largo - largo_;
for (int i=0;i<largo_;i++){
xBin += x[i+plus];
yBin+= y[i+plus];
}
avgX = xBin/largo_;
avgY = yBin/largo_;
camera(xwalk,ywalk,100,
avgX,avgY,-300,
0.0,1.0,0);
spotLight(255,255,0,
avgX,avgY,300,
0,-0.5,-1,
PI, 2);
}

void saveFrames(float numFrames){
if (frameCount <= numFrames) {
saveFrame("woim-####.tif");
}}
[/code]

"Red Spew":

Exception in thread "Animation Thread" java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at processing.core.PApplet.arrayCopy(PApplet.java:4534)
at processing.core.PGraphics3D.addPolygonTriangles(PGraphics3D.java:1512)
at processing.core.PGraphics3D.endShapeFill(PGraphics3D.java:872)
at processing.core.PGraphics3D.endShape(PGraphics3D.java:612)
at processing.core.PGraphics.endShape(PGraphics.java:1133)
at processing.core.PApplet.endShape(PApplet.java:6868)
at follow_that_woim.make(follow_that_woim.java:78)
at follow_that_woim.draw(follow_that_woim.java:57)
at processing.core.PApplet.handleDraw(PApplet.java:1406)
at processing.core.PApplet.run(PApplet.java:1311)
at java.lang.Thread.run(Thread.java:613)

I'm getting the same error (in Windows XP) when trying to use OPENGL
rendering. The exception only occurs when fill is on and I try to add more
than 28 vertices.

This works:

void draw()
{
background(0);
fill(80);
beginShape();
for(int i = 1; i <= 28; i++) curveVertex(i * 20, 200 - noise(i) * 20);
endShape();
}

Throws exception:

void draw()
{
background(0);
fill(80);
beginShape();
for(int i = 1; i <= 29; i++) curveVertex(i * 20, 200 - noise(i) * 20);
endShape();
}

Also works:

void draw()
{
background(0);
noFill();
beginShape();
for(int i = 1; i <= 100; i++) curveVertex(i * 20, 200 - noise(i) * 20);
endShape();
}

Toyed around a bit more with this; turns out vertex() dies after 512,
bezierVertex after 25 (+1) vertices, throwing the same exception. (As
above, only with fill() and OpenGL, in every other case everything works fine)

Found and fixed for 1.0.2. Thanks for the report and especially the examples.