Christie Entero RPMWU User Manual page 64

Section 3: Operation
Black Level Blending
This function brightens the center regions to match adjacent
blend regions when edge blending multiple projectors. The
Black Level Blending submenu provides controls that
allow you to adjust the black level hues of multiple adjacent
projected images to create one large seamless display.
NOTES: 1) Adjust edge blending before adjusting black
levels. 2) Blinders are recommended for fixed installations.
3) Do not use black level blending if TWIST was used for
the geometry.
Black Level Blending Procedure
NOTES: 1) Adjust edge blending before adjusting black
levels. 2) The zones in Black Level Blending (BLB) menu
correspond to the Edge Blend zones. If a given Edge Blend
zone width is set to 0 (i.e. no blend on that side), then the
corresponding BLB zone is disabled. It only becomes
accessible when that Edge Blend zone is active.
1. Start with 2 projectors. Select the black test pattern for both projectors from the Geometry and Color
submenu.
2. In the Black Level Blending submenu, enable black blending.
3. Set the blend width.
4. Working with one projector at a time, use the center brightness slidebar to adjust the center brightness
(brightness of the non-blended region) so that the center intensity matches that of the brightest blended
region (the center of all images when blending a 2 x 2 display is the target area).
5. You can choose which of the next four options, Top, Bottom, Left, Right, to use depending on which edge
of the projector you are working with has been edge blended. The blend width can be adjusted to line up
properly but by default it corresponds to the edge blending setting determined for that edge.
6. The brightness and black hues of the blended region can be adjusted in more detail in case fine-tuning is
needed (may be necessary only for blending a 2 x 2 projector display because of blending differences for
the sides and center).
7. Use Reset Black Level Blending Settings to undo the settings made in the previous steps.
NOTES: 1) The menu options vary depending on the edge blending parameters. 2) You may need to re-adjust
the black level brightnesses following the overlap adjustments on each blended edge. 3) When adjusting 6 or
more projectors, you need to ensure that the hue and brightness of each target area is matched at closely as
possible.
Tiling Setup
Image tiling allows a single input image to be spread over
multiple screens, with each screen displaying a fraction of the
image. Entero projectors support up to a 3 x 3 tiled array (for
example, 1 x 2, 3 x 1, and 2 x 3).
Projectors are numbered from left to right (left column = 1), and
from top to bottom (Top row = 1).
3-44 Entero RPMWU/RPMSP/RPMHD-LED01 User Manual
020-100367-05 Rev. 1 (06-2012)