Alpha Planes - Barco NH-12 User Manual

The selected point is displaced to the new position (x=100 ; Y=0).
Image 7-164
8. Press BACK to exit
A dialog box is displayed. Press ENTER to confirm
All the points of the higher levels (level 2, ...) are altered by this adjustment. The points that belong to the
same level (level 1) remain in the same position (anchors).
7.9.7.4.4

Alpha planes

Alpha plane specification
An alpha plane is a bitmap file which will be applied to the image in order to obtain a desired soft edge. The file must be a .TIFF file
and it must have the same resolution as the projector's native resolution. It may be compressed.
Uploading an alpha plane file
Alpha planes must be uploaded in the following projector directory (accessible via FTP) :
/D/display/Softedge
The file must be named as follows :
alpha.tiff
The free storage capacity on the D-drive is about 8 MB. it is needed to store the image files, geometry files, factory backup, Alpha
planes and Beta planes. Practically, about 6 MB will be available for the Alpha + Beta plane.
The alpha plane will only be applied if it has been activated in the Edit... menu's dialog box (see procedure
below)
How to activate an alpha plane ?
1. Press the MENU key to activate the Tool bar.
2. Push the cursor key ← or → to highlight Display setup
3. Push the ↓ key to pull down the menu.
4. Push ↓or ↑ to select Soft edge and alpha beta planes
5. Push the → key to pull down the menu.
R59770121 NH-12 04/05/2011
7. Advanced
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