PRG Mbox Studio Manual 3.8 - Manual (Page 166)

158 MBOX ® STUDIO USER MANUAL
that area of the keystone surface. Keystone mode allows you to adjust the four corners by changing the position of
the four corner points and to adjust the linearity of the entire image by changing the position of the center point. The
smaller points will reposition themselves to remain on a straight line between adjacent corner points. You cannot edit
these intermediate points.
Click inside the rectangle that contains the area you want to adjust. The corresponding point turns yellow indicating
that you can use the mouse to click and drag to adjust the geometry. You may also use the keyboard arrow keys to
move in a more precise fashion, using the [option] key for even finer control. Note that the points can move outside of
their original rectangle in any direction, and that it is the selection of the original rectangle (their "home base") that
selects the point, rather than a selection of the point itself.
Double-clicking inside a rectangle will reset the geometry for that area of the output. Pressing the "Reset All"
button will reset all geometry.
Warp mode is shown as a 3x3 array of rectangles, with all nine of the rectangles having a large, blue point. Warp
mode allows you to adjust the four corners by changing the position of the four corner points and to adjust the
intermediate curve using the other points. The warp is drawn as a Bezier curve between the corner points, using the
intermediate points as the third point on the curve.
CAUTION! Clicking on the Configure button and changing the output setup will reset all keystone/warp settings!
Note: Switching from one mode to the other will not affect the current settings, but if you switch from Warp mode to
Keystone mode and then adjust any point, the curves will revert to straight lines between the corner points.
You can apply a grid overlay for keystone and warp by setting the Master HUD parameter to a value of 221. To
disable the grid overlay, set the HUD parameter to a value other than 221.
To reset the Output Setup, click on the Options pop-up above the column list of Identities and select the Clear
Output Settings option. This will remove all Texture, Vignette, and Keystone/Warp settings. If you intend to use
the Advance Projection Mode, you should clear the Output Setup first.