I ve written a code about creating an object from a file which includes coordinates.it works when I create it in windows.But when it is in forms (in borland) there is a problem. when I write the same function in my first program it works but in the second it doesnt.. for (int loop_m = 0; loop_m < totaltri; loop_m++) { glBegin(GL_TRIANGLES); glVertex3f(n[t[loop_m].node1].x,n[t[loop_m].node1].y,n[t[loop_m].node1].z); glColor3f(0.0f,0.0f,1.0f); glVertex3f(n[t[loop_m].node2].x,n[t[loop_m].node2].y,n[t[loop_m].node2].z); glColor3f(0.0f,1.0f,0.0f); glVertex3f(n[t[loop_m].node3].x,n[t[loop_m].node3].y,n[t[loop_m].node3].z); glColor3f(1.0f,0.0f,0.0f); glEnd(); } glLoadIdentity(); glEnd(); when I debug my second program the same function loops only once.. why? can it be about the forms that I ve create and give each forms a pointer?

Hi
I tried but didnt work.. Is the following function true?
void __fastcall TForm2::FormResize(TObject *Sender)
{
glViewport(0, 0, ClientWidth, ClientHeight);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();

if(ClientHeight == 0)
ClientHeight = 1;

gluPerspective(45.0f,(GLfloat)ClientWidth/(GLfloat)ClientHeight,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}

Is this problem about this function because when I write the following function it works but the object seems so big.

glBegin(GL_TRIANGLES); // Drawing Pyramid
glColor3f(0.0f,1.0f,1.0f);

glVertex3f( 0.0f, 1.0f, 0.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-1.0f,-1.0f, 1.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f( 1.0f,-1.0f, 1.0f); glColor3f(0.0f,1.0f,1.0f);
glVertex3f( 0.0f, 1.0f, 0.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f( 1.0f,-1.0f, 1.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f( 1.0f,-1.0f, -1.0f);


glColor3f(0.0f,1.0f,1.0f);
glVertex3f( 0.0f, 1.0f, 0.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f( 1.0f,-1.0f, -1.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f( -1.0f,-1.0f, -1.0f);


glColor3f(0.0f,1.0f,1.0f);

glVertex3f( 0.0f, 1.0f, 0.0f);
glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f);
glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-1.0f,-1.0f, 1.0f);




glColor3f(0.0f,1.0f,0.0f);

glVertex3f( -1.0f, -1.0f,-1.0f);
glVertex3f(-1.0f, -1.0f,1.0f);
glVertex3f(1.0f, -1.0f, 1.0f);

glColor3f(0.0f,0.0f,1.0f);
glVertex3f( -1.0f, -1.0f,-1.0f);
glVertex3f(1.0f, -1.0f,1.0f);
glVertex3f(1.0f, -1.0f, -1.0f);
glLoadIdentity();
glEnd();