FRAMERANGE

THE BOX'S MAIN HELP:

This box makes it possible to generate start/end/current frame values.
0 is returned if current frame = start frame
1 is returned if current frame = end frame.

START (input):

This is the start frame for the frame range.
This value should be less than the end frame, but
CAN be greater than the start frame for rendering frames in reverse.

END (input):

This is the end frame for the frame range.
This value should be greater than the start frame, but
CAN be less than the start frame for rendering in reverse.

FRM (input):

This is the 'current' frame. It SHOULD be within the range specified 
by start and end, for a predictable output of 0.0 - 1.0. If the frame
is outside the range, the output will fall outside of the 0 - 1 range.

OUT (output):

Returns a fractional value between 0.0 and 1.0 representing the
current frame within the start/end frame range.
OUT is 0.0 when frame is the start frame, 1.0 when it's the end frame.
If the current frame falls outside the start/end frame range, OUT will
fall outside of the 0.0 to 1.0 range.

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