Transformasi Objek Grafika Komputer

1.      Fungsi dasar untuk Translasi (perubahan Posisi) objek

·       GLAPI void APIENTRY glTranslated( GLdouble x, GLdouble y, GLdouble z );

·       GLAPI void APIENTRY glTranslatef( GLfloat x, GLfloat y, GLfloat z );

2.        Fungsi dasar untuk Rotasi objek

·       GLAPI void APIENTRY glRotated( GLdouble angle, GLdouble x, GLdouble y, GLdouble z );

·       GLAPI void APIENTRY glRotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z );

3.        Fungsi dasar untuk skala (perubahan ukuran) objek

·       void APIENTRY glScaled( GLdouble x, GLdouble y, GLdouble z );

·       GLAPI void APIENTRY glScalef( GLfloat x, GLfloat y, GLfloat z ); 

Yuk Membuat Bendera 

Syntax 

#include <stdlib.h>

#include <glut.h>

void garisBantu(int x, int y){

       glBegin(GL_LINES);

              glVertex2i(320,0);

              glVertex2i(-320,0);

              glVertex2i(0,320);

              glVertex2i(0,-320);

       glEnd();

}

void drawQuad(){

       glBegin(GL_QUADS);

              glVertex2f(0.,0.);

              glVertex2f(0.,20.);

              glVertex2f(90.,20.);

              glVertex2f(90.,0.);

       glEnd();

}

void renderScene(void){

       glClear(GL_COLOR_BUFFER_BIT);

              garisBantu(320,0);

              garisBantu(0,320);

              glColor3f(1.,1.,1.); drawQuad();

              glTranslatef(0,20,0);

              glColor3f(1.,0.,0.); drawQuad();

       glFlush();

}

void main(int argc, char **argv){

       glutInit(&argc, argv);

       glutInitDisplayMode(GLUT_DEPTH | GLUT_SINGLE | GLUT_RGB);

       glutInitWindowPosition(100,100);

       glutInitWindowSize(480,480);

       glutCreateWindow("Novia Dimas");

              gluOrtho2D(-320.,320.,-320.,320.);

       glutDisplayFunc(renderScene);

       glutMainLoop();

Output

}