Ensures that the area framebuffer object is made the current draw
and read target, and that all the required buffers for the area
are created and bound to the frambuffer.
This function is automatically called before emitting the
render signal, and doesn't normally need to be called
by application code.
Ensures that the area framebuffer object is made the current draw and read target, and that all the required buffers for the area are created and bound to the frambuffer.
This function is automatically called before emitting the render signal, and doesn't normally need to be called by application code.