a 2003 document whose - Institute for Simulation and Training ...

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Section 12
Environment family
The upper 32 bits of the Point Object Appearance field are defined specifically for each category.
The following sections describe the specific bit definitions for all categories.
12.1.2.2.1 Building / structure, Building rubble, Stationary bridge, and AVLB
The upper 32 bits of the Point Object Appearance field for categories Building / structure, Building
rubble, Stationary bridge, and AVLB are defined as follows:
Name Bits Purpose
Unused 16-47 0
12.1.2.2.2 Log crib, Abatis, Vehicle defilade, and Infantry fighting position
The upper 32 bits of the Point Object Appearance field for the categories Log crib, Abatis, Vehicle
defilade, and Infantry fighting position are defined as follows:
Name Bits Purpose
Breach 16-17 Describes the breached appearance of the object
0 No breaching
1 Breached
2 Cleared
Unused 18-31 0
12.1.2.2.3 Air burst, Ground burst
The upper 32 bits of the Point Object Appearance field for the categories Air burst and Ground
burst are defined as follows:
Name Bits Purpose
Opacity 16-23 8-bit unsigned integer indicating the percent opacity
of the smoke, ranging from 0% opacity to 100%
opacity
Size 24-31 8-bit unsigned integer indicating the radius of the
cylinder which approximates an individual burst.
The Point Object Location field indicates the center of
the bottom of the cylinder for individual bursts. For
multiple bursts, the center bottom of each cylinder is
calculated based on the model used to represent the
multiple bursts.
Height 32-39 8-bit unsigned integer indicating the height of the
cylinder which approximates an individual burst.
The Point Object Location field indicates the center of