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

4.3.4 Environmentals Kind
The bits of the Entity -Appearance field for environmentals are defined as follows:
Name Bits Purpose
0 - 15 Unused
Density 16-19 Describes the density of the environmentals
0 - Clear
1 - Hazy
2 - Dense
3 - Very dense
4 - Opaque
5 - 15 Unused
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Section 4.3
Entity Appearance
Frozen Status 21 Describes the frozen status of a environmental object
0 - Not frozen
1 - Frozen (Frozen object should not be dead-reckoned, i.e.
they should be displayed as fixed at the current location
even if non-zero velocity, acceleration or rotation data is
received from the frozen entity)
22 Unused
State 23 Describes the state of a environmental object
0 - Active
1 - Deactivated
24-30 Unused
Masked / Cloaked 31 Describes if the entity is Masked / Cloaked or Not
0 - Not Masked / Not Cloaked
1 - Masked / Cloaked
4.3.5 Cultural Features Kind
The bits of the Entity -Appearance field for Cultural Features are defined as follows:
Name Bits Purpose
0 - 2 Unused
Damage 3-4 Describes the damaged appearance of an entity
0 - No damage
1 - Slight damage
2 - Moderate damage
3 - Destroyed
Smoke 5-6 Describes status of smoke emanating from a Cultural
Features object
0 - Not smoking