High End Systems DL.3, User Manual

Page: 257 / 394

CHAPTER 13
Effect Mode Options Descriptions
DL.3 Digital Light User Manual 231
Spherical Mapping
Spherical Mapping adjusts a rectangular output to project on a portion of a sphere. It is
especially useful for projecting a Collage onto a sphere or a portion of a sphere. Spherical
mapping utilizes a total of nine Effect Modifier parameters to adjust positioning. In addition to
the three modifiers associated with the Global Effect, two Graphics Object Effects provide six
additional Modifier parameters. Use these adjustments in conjunction with Keystone parameters
and Ratio parameters to refine the output shape on the spherical surface.
For a more information and a detailed setup guide for Spherical Mapping, see Mapping a Collage
to a Spherical Surface on page 142.
Spherical Mapping, Outside
Effect Mode parameter DMX value = 142
This effect corrects shape distortions and controls blending for Collages projected onto the
outside surface of a sphere.
Spherical Mapping, Inside
Effect Mode parameter DMX value = 143
This Global Effect corrects shape distortions and controls blending for Collages projected onto
the inside surface of a sphere.
Modifier Parameter Adjustments
When Spherical Mapping is selected, the associated Global Effect Modifier parameters
adjust as follows:
Modifier 1: Adjusts the longitude (horizontal) angle. A value of 0 = no adjustment. The
number of degrees of angle increases as you increase value to maximum at 255
(100%).
Modifier 2: Adjusts the latitude (vertical) angle. A value of 0 = no adjustment. The num-
ber of degrees of angle increases as you increase value to maximum at 255 (100%).
Modifier 3: Adjusts the center of the latitude angle. A value of 128 = no adjustment and
assumes the center of the latitude angle is at the “equator”. Values below the midpoint move
the center of the latitude angle down with 0 = maximum distance below the “equator”. Values
above the midpoint move the center of the latitude angle up to 255 = maximum distance above
the “equator”.
NOTE: When the Spherical Mapping effect is selected in a Global Effect
parameter and a Graphic Effect parameter’s DMX value = 253, the
Graphic Effect Modifier parameters make the following Spherical
Mapping adjustments:
Modifier 1: Controls the vertical offset of the projector. A value of 128 = no adjustment.
to maximum at 255 (100%). Values below the midpoint compress the grid toward the
“equator”. Values above the midpoint stretch the horizontal grid lines away from the “equator”.
Object Effect Global Effect