Output Geometry Fixture; Output Keystone Fixture - PRG MBOX User Manual

Output Geometry Fixture

The Output Geometry Fixture parameters may be used to modify supplemental 2D rendering parameters for the
assigned output(s) only, not affecting any other outputs from the server. None of the output geometry controls affect the
3D perspective of objects rendered on the output.
Output Position
The Output Position parameters move the imagery within the output left/right and up/down using 16-bit control. These
controls may be used to quickly adjust the 2D position of composited imagery within the output. However, since outputs
only render imagery that "belongs" to them, any area outside the original rendering boundaries of the output will not be
rendered when the output position is adjusted. Meaning that those areas will be black. The output position controls are
most useful when the output scale parameter has been set above the default. Use the Mix Offset controls instead to
allow imagery from outside the original rendering boundaries to be seen.
Output Scale
The Output Scale parameter may be use to scale down/up the imagery within the output. As with the output position
controls, only the imagery within the output's original boundaries will be scaled.
Output Rotation
The Output Rotation parameter rotates the imagery within the output. As with the output position and scale controls,
only the imagery within the output's original boundaries will be rotated.
Mix Offset
The Mix Offset parameters work in the same manner as adjusting the output's position on the global surface on the
Outputs tab of the Mbox application. These controls are scaled so that one "tick" of DMX is equal to one onscreen pixel,
meaning that the controls can be used for extremely precise, pixel-accurate offsets. Unlike the output position controls,
the mix offset controls do allow imagery from outside the output's original boundaries to be moved into view. This is
because these controls effectively move the output's boundaries.

Output Keystone Fixture

The Output Keystone Fixture parameters are used to enable and modify keystone and edge-blending parameters for the
assigned output(s) only, not affecting any other outputs from the server. Mbox Mini has reduced keystone functionality
when compared to Designer and Studio.
Curve
The Curve parameter enables the DMX keystone controls (as opposed to using the keystone/warp tools in Mbox
Remote's projection editor), selects which edge blend curve (Linear/Raised Cosine/Sine) is used, and also enables an
overlay grid to assist with keystone setup. The Linear blend curve is recommended for most normal usage.
Gamma
The Keystone Gamma parameter affects the overall brightness of the edge blend area, allowing for better blending with
overlaid projector outputs.
Edge Controls
Each of the four output Edge Control parameters affects the position of the edge blend area on the corresponding side
of the output. The output edge blend begins at the outside edge of the image and may be moved inwards towards the
center of the image. Edge blends follow the angle of the corresponding side of the image, as adjusted by the corner
controls (see below).
MBOX® USER MANUAL
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