TYPE: ROP
TITLE: SubNetwork ROP

The SubNetwork output operator provides an easy way to manage large number of
output operators.  It can also be used to render the output operators inside it.
When the render button is hit, all the operators inside the SubNetwork will be
rendered in turn.  In a multi frame render, all the operators will be rendered
for one frame before the next frame will be rendered.

To guarantee a specific completion order, turn off Render in Background with the
subnodes and set the order using the User Defined Order of the network viewer.

Parameters:
    Render        - Begins the render.
    Frame Range   - Allows specification of a range of frames to render.
    Start/End/Inc - Specifies the first and last frames and the increment.
                    Note that when rendering a sequence of images with a
                    fraction Inc, $N is the number of the frame rendered, 
                    $F is the nearest integer frame number, $FF is the 
                    floating point frame number

Local Variables:
    N            - Frame being rendered.
    NRENDER      - Total number of frames being rendered.
