Hi,
In recent days, I've been trying to mix SFML with me graphic engine and I have found a possible bug. The point is that when I active the face culling the SFML text disappears.
Here is a test code:
int main(int argc, char** argv)
{
sf::RenderWindow window(sf::VideoMode(640, 480, 32), "Test window");
sf::Text text;
// Setup the text.
text.SetString ("Test text!");
text.SetPosition(10.0f, 10.0f);
// Main loop.
while (window.IsOpen())
{
sf::Event event;
// Events.
while (window.PollEvent(event))
{
if (event.Type == sf::Event::Closed)
{
window.Close();
}
}
// This causes the problem.
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
// Projection.
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-5.0f, 5.0f, -5.0f, 5.0f, -1.0f, 1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Only a point.
glPointSize(4.0f);
glBegin(GL_POINTS);
glVertex2f(0.0f, 0.0f);
glEnd();
// SFML rendering.
window.PushGLStates();
window.Draw(text);
window.PopGLStates();
window.Display();
}
return EXIT_SUCCESS;
}
I looked at the source code of SFML and the problem may be in the method ResetGLStates() in the class RenderTarget. I think this method should disable the face culling or set its own culling parameters.
Thanks.