Layer Copy; Using Layer Copy - PRG MBOX User Manual

LAYER COPY

Using Layer Copy

At times, there may be a need to play the same movie content on more than one layer at the same time. The same
content can be requested on multiple layers, but doing so causes the content to be read from the hard-drive more than
once, as well as being decompressed more than once. This is a waste of resources if the intention is to display the
same frame of the same movie on multiple layers at the same time. The Layer Copy function provides a way to copy the
content from one layer to another and to receive the source layer's effects and transitions, or to ignore the source layer's
effects and transitions.
There are three modes of Layer Copy: FX+ and Raw:
+ FX+ is a layer copy where the source layer sends its effects and transitions to the destination layer. The destination
layer can add more effects via its own controls (allowing up to eight effects to be visible on a destination layer).
+ Raw is a layer copy where the source layer does not send its effects or transitions to the destination layer. The
destination layer can add more effects via its own controls.
Layer Copy functionality is selected as if it were a piece of content in the media folder. Folder 255 is selected, and the
file number attribute controls which layer is being copied and which mode of copying takes place.
Folder 255/File #
001 - 024
031 - 054
Guidelines:
+ Layer Copy does not work with transition 255 (Object Dissolve).
+ When using the Raw copy mode, if a source layer makes a timed transition, then any destination layers using a copy
of that source will not receive the transition. Their content will change immediately.
+ A layer cannot copy another layer that is already copying a third layer.
Syphon
Mbox includes the Syphon framework, which allows Mbox to either send or receive real-time, full-framerate videos or
stills between applications on the same machine. For example, it is possible to place the video output from Quartz
Composer, Unity 3, or other applications on a layer within Mbox. Refer to
information about this feature.
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Mode Layers Notes
FX+ 1 - 24 File numbers 001-024 correspond to the FX- mode for Layers 1-24.
i.e. 001 = Layer 1 FX- copy mode, 002 = Layer 2 FX- copy mode,
and so on.
Raw 1 - 24 File numbers 031-054 correspond to the Raw mode for Layers 1-24.
i.e. 031 = Layer 1 Raw copy mode, 032 = Layer 2 Raw copy mode,
and so on.
"Syphon Video Input" on page 146 for more