Hello,

I am new to processing. This is from the examples. When I render it with openGL why do grid lines appear in the circle?  It happens when I try to fill it too.  How do I get rid of them?

Thanks,

jrmy

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import processing.opengl.*;

int size = 60;       // Width of the shape
float xpos, ypos;    // Starting position of shape    

float xspeed = 2.8;  // Speed of the shape
float yspeed = 2.2;  // Speed of the shape

int xdirection = 1;  // Left or Right
int ydirection = 1;  // Top to Bottom


void setup()
{
 size(200, 200, OPENGL);
 noStroke();
 framerate(30);
 smooth();
 // Set the starting position of the shape
 xpos = width/2;
 ypos = height/2;
}

void draw()
{
 background(102);
 
 // Update the position of the shape
 xpos = xpos + ( xspeed * xdirection );
 ypos = ypos + ( yspeed * ydirection );
 
 // Test to see if the shape exceeds the boundaries of the screen
 // If it does, reverse its direction by multiplying by -1
 if (xpos > width-size || xpos < 0) {
   xdirection *= -1;
 }
 if (ypos > height-size || ypos < 0) {
   ydirection *= -1;
 }

 // Draw the shape
 ellipse(xpos+size/2, ypos+size/2, size, size);
}