Drawing a sprite or text causes the OpenGl rendering to 'disappear' in SFML
- by Ken
I'm using some SFML built in functions to draw sprites and text as an overlay on top of some OpenGL rending in an SFML RenderWindow. The opengl rendering appears fine until I add the code to draw the sprites or text. The sprite or text drawing causes the OpenGL stuff to disappear.
The follow code show what I'm trying to do
sf::RenderWindow window(sf::VideoMode(viewport.width,viewport.height,32), "SFML Window");
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,viewport.width,0,viewport.height,0,1);
while (window.pollEvent(Event))
{
//event handling...
//begin drawing
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor3f(col.x,col.y,col.z);
for(int i=0;i<3;i++)
glVertex2f(pos.x+verts[i].x,pos.y+verts[i].y);
glEnd();
// adding this line causes all the previous opengl triangles not to appear
window.draw("Sometext");
window.display();
}
