Robe Digital Spot 3000 DT II, User Manual, Page: 33 / 124

DigitalSpot 3000 DT II
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17. In Frame and Out Frame parameters
You can select any segment of a video file for playback by assigning parameters for In Frame (start point) and an
Out Frame (end point) as pictured below.
The In Frame parameter corresponds to a 16-bit DMX value equal to a starting point for the playback segment of
the selected video file. The Out Frame parameter corresponds to a 16-bit DMX value equal to an end point for the
playback segment of the selected video file.
1
.Assigning the In Frame DMX values to 0
and Out Frame DMX values to 255 you will
playback the entire video file.
2 . You can create a segment anywhere
between the beginning and the end of the
video file.
3 . It is possible to skip a segment in the
video file by setting the In Frame to a point
following the Out Frame value.
18. Video Control
The channel Gobo control defines how the current layer will be ‘composed’ with the previous layers and the
playback options in each mode .The Digital Spot 3500 supports the following options:
Copy mode (0-17 DMX) : In this mode, the pixels of the layer are written on top of the previous layers.
Addition mode (20-37 DMX
: In this mode, the pixel values of the current layer are added to the ones of
the previous layers. This means that “dark” pixels in the current layer image won’t alter the pixels
that are underneath while “light” pixel will saturate the image underneath.
Subtraction mode (40-47DMX) : In this mode, the pixel values of the current layer are subtracted from the pixel
value in the underlying layers. Dark pixel from the current layer won’t alter the pixel of
the layers underneath while light pixel will darken them.
Multiplication mode (60-77 DMX): In this mode, the pixels from the current layer will be multiplied by the pixels of
the underlying layers. For a pixel to appear bright in the output, the equivalent pixel of
the current layer and the underlying layer needs to be bright. If any of the layers has
a dark pixel, the result will be dark.
Minimum mode (80-97 DMX): This mode takes the pixel that is the darkest between the current layer and
the layer underneath
Maximum mode (100-117 DMX) : This mode takes the pixel that is the brightest between the current layer and
the layer underneath.