Rotating a single object out of 3

[AeroSujan]

I have 3 objects on the screen, I want to rotate onll 2 objects the axis and X,Y,Z. Another line is there which I want not to rotate. But with this code below all are moving. Check below my DrawScene function.

void CopenGLCoordView::DrawScene(CDC *pDC)
{
    wglMakeCurrent(pDC->m_hDC, m_hrc);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);    
    glEnable(GL_DEPTH_TEST);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
 
 
    if (wd <= ht)
    glOrtho(left, right, top*ht/wd, bottom*ht/wd, znear, zfar);
    else
    glOrtho(left*wd/ht, right*wd/ht, top, bottom, znear, zfar);
 
 
    glPushMatrix();
    glRotatef(rot[0], 1.0f, 0.0f, 0.0f);
    glRotatef(rot[1], 0.0f, 1.0f, 0.0f);
    glRotatef(rot[2], 0.0f, 0.0f, 1.0f);
    glCallList(axes);
    glPrintX("X");
    glPrintY("Y");
    glPrintZ("Z");
    glPopMatrix();
 
    drawLine();  //This is also moving...i want this to not to move...
 
 
    glFlush();
    SwapBuffers(pDC->m_hDC);
 
    wglMakeCurrent(NULL, NULL);
}

Any help is highly appreciated. Thanks Sujan

[V-man]

You forgot to use glGetError().

You are using the projection matrix stack which tends to be not very deep. There is maybe a stack space of 2 or 4 and it is possible you are exceeding it.

Do all your model manipulation on the modelview, which tends to be 16 and more stack deep.

[AeroSujan]

I am trying so that my line from drawLine should not rotate. Others should rotate. But with the below code nothing is rotating. I knew that we can use glPushMatrix() and glPopMatrix(). But it's not working. Please help

void CopenGLCoordView::DrawScene(CDC *pDC)
{
	wglMakeCurrent(pDC->m_hDC, m_hrc);
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);	
	glEnable(GL_DEPTH_TEST);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
 
 
	drawLine();
 
 
	glPushMatrix();
	glRotatef(rot[0], 1.0f, 0.0f, 0.0f);
	glRotatef(rot[1], 0.0f, 1.0f, 0.0f);
	glRotatef(rot[2], 0.0f, 0.0f, 1.0f);
	drawAxes();
	glPrintX("X");
    glPrintY("Y");
	glPrintZ("Z");
	glPopMatrix();
 
 
	glFlush();
	SwapBuffers(pDC->m_hDC);	
	wglMakeCurrent(NULL, NULL);
}

[V-man]

Don't you think this make more sense :

void CopenGLCoordView::DrawScene(CDC *pDC)
{
    wglMakeCurrent(pDC->m_hDC, m_hrc);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);    
    glEnable(GL_DEPTH_TEST);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
 
 
    if (wd <= ht)
    glOrtho(left, right, top*ht/wd, bottom*ht/wd, znear, zfar);
    else
    glOrtho(left*wd/ht, right*wd/ht, top, bottom, znear, zfar);
 
    glMatrixMode(GL_MODELVIEW);
 
    glPushMatrix();
    glRotatef(rot[0], 1.0f, 0.0f, 0.0f);
    glRotatef(rot[1], 0.0f, 1.0f, 0.0f);
    glRotatef(rot[2], 0.0f, 0.0f, 1.0f);
    glCallList(axes);
    glPrintX("X");
    glPrintY("Y");
    glPrintZ("Z");
    glPopMatrix();
 
    drawLine();  //This is also moving...i want this to not to move...
 
 
    glFlush();
    SwapBuffers(pDC->m_hDC);
 
    wglMakeCurrent(NULL, NULL);
}

[Carmine]

Try adding another glLoadIdentity() just after the glMatrixMode(GL_MODELVIEW) command.