Adjusting The Intensity Of Black - Christie Mirage M Series User Manual

Show Blending Overlap off to reactivate the blend effect. Blending Overlap appears as
Reserved when Christie Twist is installed.
Notice. Failure to comply with the following may result in property damage.
• Christie recommends the projector units be the same models and have identical part numbers.
• Before attempting to work with edge blending software functions, align the projectors/images by
correctly overlapping the displays from your intended external source.
• Match colors and the brightness uniformity.
• For a shared edge, all blend procedures and settings should be identical on both projectors
1. Start with two projectors.
2. Display the full white field test pattern from both.
3. Select Configuration > Geometry and Color > Edge Blending.
4. Enable Edge Blending.
5. Set starting points for adjustment:
a. Set all blend widths to 0.
b. Go to More and set everything in the Edge Blending menu to 50.
6. Set blend width on one projector, increase the Blend Width for an overlapping edge (for
example, if the projector's image is on left, its right edge overlaps the adjacent image—adjust
Right Blend Width). Use the same setting on the second projector for this shared edge.
7. Re-adjust the width on both projectors until the overly bright band at the midpoint of the
overlapping blends disappears or changes to light grey. For the shared edge, use the same
Blend Width setting on each projector. If the best blend appears to be between two settings,
choose the wider setting for both projectors.
8. Check blend if the blended region appears too dark or light in relation to the rest of the image:
a. Increase Blend Midpoint in both projectors to lighten the overall blend, decrease to
darken the overall blend.
b. Adjust Blend Shape in both projectors to fine-tune change the amount of mid-grey
intensity (as opposed to black/white) in the blend.
9. Repeat with remaining projectors with overlaps.
10. Check completed display wall with the desired external signal.
11. If necessary, adjust the mechanical alignment to maintain perfect pixel-on-pixel alignment over
time.
In applications where you are projecting only white or light images, the Blend Width may be
slightly higher—set according to how much overlap you have between images. Use the following as
a guide (examples show overlapping width only—values for overlapping height differs). The
recommended overlap is 12.5% - 25%.

Adjusting the intensity of black

Eliminates the differences between black levels when edge blending multiple projectors. The Black
Level Blending submenu provides many controls to allow the edges of adjacent images to be
Mirage M Series User Manual
020-101942-02 Rev. 1 (10-2018)
http://www.pureglare.com.au
Adjusting the image
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