High End Systems AXON Uživatelský manuál stáhnout pdf (Strana 172)

CHAPTER 13

Effect Mode Options Descriptions

152 Axon Media Server User Manual

Spherical Mapping

Object Effect Global Effect

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 detailed setup guide for Spherical Mapping, see Mapping a Collage to a Spherical

Surface on page 114.

Spherical Mapping, Outside

Effect Mode parameter DMX value = 142

This option 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

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 from the “equator” to a minimum at 0. Values above the

midpoint move the center of the latitude angle above the equator to a maximum at 255.

When the Spherical Mapping option 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”.

Modifier 2: Adjusts the vertical offset of the sphere. A DMX value of 128 (50%) = no

adjustment. Adjusting toward 0 moves the center of the adjustment down toward the

bottom of the image. Values above the midrange move the bend center up to the top of

the image at a DMX value of 255 (100%).

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