Grass Valley 1200 Operation Manual - Manual (Page 72)

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Section 3 — Controls & Menus
Matte
The switcher has many matte generators, including matte fill,
wipe border, Borderline, and a background matte generator
within each crosspoint which can be enabled in the Config/
Crosspoint Map menu. The four Matte controls (Figure 3-12) can
be delegated to adjust any of the available mattes.
Matte Controls
■ The (HUE) knob sets the matte color.
■ The (SAT) knob sets the color saturation.
■ The (LUM) knob sets the color brightness.
■ The (OPACITY) knob sets the translucence of the matte. At the
fully clockwise setting, the matte is completely opaque.
Selections in the menu system allow you to limit the matte
generators to produce only levels and colors that fall within
broadcast and RGB color standards.
Matte Delegation
Delegation is automatic when you select a matte crosspoint. In
addition, delegation buttons and a display are provided in the
Matte panel section for manually delegating the control knobs:
■ The [BKGD], [WIPE BORDER], [KEY 1], [KEY 2], and [DSK] buttons
delegate the matte controls to the background generator, the
wipe matte generator, or the key matte generators,
respectively.
■ The [FILL], [PRESET BORDER], and [BORDERLINE] buttons
provide further subdelegation of the Matte knobs to the
keyer’s matte fill, preset pattern border matte, or Borderline
matte.