//--------------------------------------------------------------------------------
void GLWidget::resizeGL(int width, int height)
{
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glPerspective(scene.camera.FovY(), (double) width / (double) height, scene.camera.ZNear(), scene.camera.ZFar());
glMatrixMode(GL_MODELVIEW);
}
void draw::use3D()
{
// Set up depth
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glFrontFace(GL_CCW);
glCullFace(GL_BACK);
glDepthFunc(GL_LEQUAL);
glClearDepth(1.0f);
glClear(GL_DEPTH_BUFFER_BIT);
// Set up lighting
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
// Set up camera frustrum
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glPerspective(GL_VIEW_FIELD, global::viewport.x/global::viewport.y, GL_Z_NEAR, GL_Z_FAR);
// Clean the slate
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}