Opengl da uchlar va primitivlar bilan ishlash glBegin/glEnd qavslar

4.Laboratoriya ishiga oid namunalar
1) Line va nuqta primitivi bilan ishlash
#include
void display()
{ glBegin(GL_LINE_STRIP); // line funksiyasi
glVertex2f(300, 200);
glVertex2f(600, 200);
glVertex2f(600, 500);
glVertex2f(350, 500);
glVertex2f(300, 600);
glEnd();
glPointSize(25); // nuqta o‘lchami
glBegin(GL_POINTS); // nuqta funksiyasi
glVertex2f(200,400);
glEnd();
glFlush(); }
int main(){
glutInitWindowSize(1000, 1000);
glutCreateWindow("Line funksiyasidan foydalanish");
gluOrtho2D(0,1000,1000,0);
glutDisplayFunc(display);
glutMainLoop();}
Natija:____2._Line_loop_funksiyasidan_foydalanish'>Natija:



2. Line loop funksiyasidan foydalanish
#include
#include
#include
#include
#include
void chizish() {
glBegin(GL_LINE_LOOP);
for (int i = 0; i < 8; i++) {
float angle = 6.2832 * i / 8; // 6.2832 represents 2*PI
float x = 0.5 * cos(angle);
float y = 0.5 * sin(angle);
glVertex2f( x, y );}
glEnd(); glFlush(); }
int main() {
glutInitWindowSize(500,400);
gluOrtho2D(0,1000,1000,0);
glutCreateWindow("line_loop");
glutDisplayFunc(chizish);
glutMainLoop();}
Natija:



3.Uchburchak va to‘rtburchak chizish
#include
#include // Zagolovochnыy fayl dlya Windows
#include // Zagolovochnыy fayl dlya OpenGL32 bibliotеki
#include // Zagolovochnыy fayl dlya GLu32 bibliotеki
void display() {
glBegin(GL_QUAD_STRIP);
glColor3ub(250,0,0);
glVertex2i(200,300);
glVertex2i(270,150);
glVertex2i(320,320);
glVertex2i(370,120);
glVertex2i(400,500);
glVertex2i(600,50);
glEnd();
glBegin(GL_TRIANGLES);
glColor3ub(250,100,150);
glVertex2i(600,200);
glVertex2i(800,400);
glVertex2i(400,400);
glEnd();
glFlush(); }
int main() {
glutInitWindowSize(500,400);
glutCreateWindow("line_loop");
gluOrtho2D(0,1000,1000,0);
glutDisplayFunc(display);
glutMainLoop();}