15-462 Lecture 3: Interaction

01/21/2003

15-462 Computer Graphics I

35

Step 5: Display Callback

•Clear, rotate, draw, flush, swap

GLfloat theta[3] = {0.0, 0.0, 0.0};

void display(void)

{ glClear(GL_COLOR_BUFFER_BIT

| GL_DEPTH_BUFFER_BIT);

glLoadIdentity();

glRotatef(theta[0], 1.0, 0.0, 0.0);

glRotatef(theta[1], 0.0, 1.0, 0.0);

glRotatef(theta[2], 0.0, 0.0, 1.0);

colorcube(); glFlush();

glutSwapBuffers(); }