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Value Action Notes

0 Once Play clip once, hold last frame

(hold ﬁrst frame if playing backwards).

1 Once-then-black Play clip once, then go to black

2 Loop Loop in the current direction of play

3 Bounce Reverse direction at ﬁrst/last frame.

4 First frame Show start frame

(1)

5 Last frame Show the end frame

(1)

6 Pause Show the current frame, regardless of speed.

7 Next frame Advance to the next frame then

automatically pause

(2)

(1) Note that these modes ignore playback speed and always show the selected frame. If the start or end frames are changed, the

displayed frame will change. This allows the user to view the start and end points as they are moved around within a clip.

(2) Play mode must go back to Pause before this mode can be used again.

10.5.19 Scale

Pseudo-logarithmic scale factor with the values 0 to 65535 corresponding to a multiplication factor of 0.0 to 10.0, with 32768

being 1.0.

10.5.20 Screen Offset

Linear scale, with the values 0 to 65535 corresponding to an offset in screen position of -1.0 to +1.0. 32768 corresponds to 0,

i.e. no offset. A value of 0 in the X position of a layer, for example, would move the layer one screen width to the left (-1),

effectively taking it just out of view (if its width was unchanged).

10.5.21 Scroll Position

Linear scale, with the values 0 to 65535 corresponding to a scroll position of -100.0 to + 555.0. When scrolling in X the position

is in characters. When scrolling in Y the position is in lines. (0,0) is the top left of the ﬁrst character in a piece of text.

10.5.22 Scroll Speed

When used to scroll the content of a layer, the speed is in units of width or height. In other words, a speed of 1.0 will scroll the

entire width (or height) in 1 second.

Value Speed Notes

0 0 Reset to start position

1-127 1.0 - 0.008 Negative (Left, Down)

128 0 Stop

129-255 0.008 - 1.0 Positive (Right, Up)

10.5.23 Speed Factor

Speed is represented as a multiplier to be applied to the normal speed, with the values 0-65535 encoded linearly as follows:

Value Speed Multiplier Notes

0 -500% Backwards at 5 times normal speed

26214 -100% Backwards

32768 0 Stop

1 2 ... 56 57 58 59 60 61 62 63 64 65 66

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