P3D Model Info
Model Info
The Model Info structure is last in file for ODOL7 (ofp) and at top of file for ODOL4x (ARMAx)
ModelInfo
{
float LodTypes[Header.NoOfLods];// alias resolutions
ulong Index; // appears to be a bit flag, 512, 256 eg
float Sphere1;
float Sphere2; // mostly same as Sphere1
ulong PointFlags[3]; // typically 00 00 00 00 00 00 00 00 00 00 0C 00 eg (last is same as user point flags)
XYZTriplet Offset; // model offset (unknown functionality),//mostly same as offset2
ulong mapIconColor; // RGBA 32 color
ulong mapSelectedColor; // RGBA 32 color
float ViewDensity; //
XYZTriplet bboxMinPosition; // minimum coordinates of bounding box
XYZTriplet bboxMaxPosition; // maximum coordinates of bounding box. Generally the complement of the 1st
// Resolution&GeometryBounds in Pew is bboxMinPosition-bboxMaxPosition for X and Z
XYZTriplet WrpModelOffset; // Resolution&GeometryAutoCenterPos in pew
XYZTriplet Offset2; // mostly same as Offset often same as ModelCentreOfGravity
XYZTriplet ModelCentreOfGravity; //
XYZTriplet ModelMassVectors[3]; // for ODOL7 this is a mixture of floats and index values
TinyBool AutoCenter,
lockAutoCenter,
canOcclude,
canBeOccluded,
allowAnimation;
///////////ARMA (V4x) ONLY ////////////
bytes UnknownARMAFlags[6]; //
byte ThermalProfile[24]; // Arma2 only (43,47,48 & VBS2)
ulong UnknownLong; // V48 only
Skeleton Skeleton; //
///////////////////////////////////////
byte UnknownByte;
ulong nFloats; // always zero for arma
float UnknownFloats[nFloats]; // potentially compressed
float Mass;
float MassReciprocal; // see note
float AltMass; // see note
float AltMassReciprocal; // see note
byte UnknownByteIndices[12] // see note generally FF FF FF FF FF FF FF FF FF FF FF FF
///////////ARMA (V4x) ONLY ////////////
ulong UnknownLong; // often same as lodcount
TinyBool UnknownBool; // generally set if ascii below has strings
asciiz ClassType; // class="" or "House" or...
asciiz DestructType; // damage="" or "Tent" or "Building",,,,
TinyBool UnknownBool2; // rarely true
ulong Always0; //
///////////////////////////////////////
}
ODOLV7 BIS
The 24 byte area after the mass float is, as represented, in the supplied, 'official', addons from Bis for ALL game engines.
For V7:
- MOST oem addons subscribe to above.
- SOME oem addons, notably those from VTE, and any with optics, have a varying amount of data after the Mass float. Some less than 24, some, a lot more than 24. CLearly this area needs further work. The models themselves are unlikely to be faulty, and were generated by O2L. There is nothing in previous data structures that would suggest appended or truncated data. Perhaps, like it's MLOD-SP3X equivalent, it has a default file size, and anything 'extra', is tested for.
Odol Explorer
Note that odol explorer from Dschulle reverses -24 bytes from end of file to 'get at' the Mass float. This because at the time, the compressed float array was not understood.
For trunctated data (Odol7 files < 24 bytes) this will clearly be faulty. For excessive files, OdolEX may well indeed be right.
Skeleton
Skeleton
{
asciiz SkeletonName; //"A10Skeleton"
if (SkeletonName != null)
{
tbool isInherited;
ulong NoOfBoneNames;
SkeletonBoneName SkeletonBoneNames[NoOfBoneNames];
if (type>40 && ! VBS2) // ie arma2
{
byte Always0;
}
}
}
SkeletonBoneName
SkeletonBoneName
{
asciiz BoneName; //"3dhud" or "Gearlocks" or "Fuel" or ...
asciiz ParentBoneName; // "Aeileron_1"
}
corresponds to model.cfg
class cfgSkeletons
{
class SkeletonClassname: Default
{
skeletonBones[]=
{
"RightDoor1","",
"RightDoor2","",
"LeftDoor1","",
"LeftDoor2","RightDoor2",
etc"
};
};
LodTypes
LodTypes are resolutions. Most of them have humanly readable context such as the 'memory' lod. And are selected as such in Oxygen. The are consequently referred to here as 'LodTypes', since the floating point values, although relevant to the engine, are not as immediately apparent to a human.
- Lods in the file are highest to lowest. The lowest resolution (eg. Resolution 1.0) will be the last in the file.
- Start and ending addresses are random (not sorted). The LodTypes array declares which Lod an address-pair is referring to.
Thus, if the first Lodtype entry(eg) specifies a resolution of 1.0e13 (a geometry lod), that lod is located via the 1st Starting address. It is NOT, necessarily, the 1st lod in the file.
Resolution Values
| Hex | Float | Decimal | Description |
|---|---|---|---|
| <1,000 | Graphical Lod | ||
| Functional Lods | |||
| 0x447a0000 | 1.0e3 | 1,000 | View Gunner |
| 0x44898000 | 1.1e3 | 1,100 | View Pilot |
| 0x44960000 | 1.2e3 | 1,200 | View Cargo |
| "" | "" | Shadow Lods | |
| 0x461c4000 | 1.0e4 | 10,000 | Stencil Shadow |
| 0x461c6800 | 1.001e4 | 10,010 | Stencil Shadow 2 |
| 0x462be000 | 1.1e4 | 11000 | Shadow Volume |
| 0x462c0800 | 1.101e4 | 11010 | Shadow Volume 2 |
| 0x551184e7 | 1.0e13 | 10,000,000,000,000 | Geometry |
| 0x58635fa9 | 1.0e15 | 1,000,000,000,000,000 | Memory |
| 0x58e35fa9 | 2.0e15 | 2,000,000,000,000,000 | Land Contact |
| 0x592a87bf | 3.0e15 | 3,000,000,000,000,000 | Roadway |
| 0x59635fa9 | 4.0e15 | 4,000,000,000,000,000 | Paths |
| 0x598e1bca | 5.0e15 | 5,000,000,000,000,000 | HitPoints |
| 0x59aa87bf | 6.0e15 | 6,000,000,000,000,000 | View Geometry |
| 0x59c6f3b4 | 7.0e15 | 7,000,000,000,000,000 | Fire Geometry |
| 0x59e35fa9 | 8.0e15 | 8,000,000,000,000,000 | View Cargo Geometry |
| 0x59ffcb9e | 9.0e15 | 9,000,000,000,000,000 | View Cargo Fire Geometry |
| 0x5a0e1bca | 1.0e16 | 10,000,000,000,000,000 | View Commander |
| 0x5a1c51c4 | 1.1e16 | 11,000,000,000,000,000 | View Commander Geometry |
| 0x5a2a87bf | 1.2e16 | 12,000,000,000,000,000 | View Commander Fire Geometry |
| 0x5a38bdb9 | 1.3e16 | 13,000,000,000,000,000 | View Pilot Geometry |
| 0x5a46f3b4 | 1.4e16 | 14,000,000,000,000,000 | View Pilot Fire Geometry |
| 0x5a5529af | 1.5e16 | 15,000,000,000,000,000 | View Gunner Geometry |
| 0x5a635fa9 | 1.6e16 | 16,000,000,000,000,000 | View Gunner Fire Geometry |
| 0x5a7195a4 | 1.7e16 | 17,000,000,000,000,000 | Sub Parts |
If the value is below 1000.0, then the LOD is supposed to be a graphical LOD.
If the value equals or is above 10000.0 and is not one of the functional LODs, it is a shadow LOD.
The LOD selected for displaying if
DistanceToObject * LODCoef * M <= LODResolution
Where:
- LODCoef is value from OFP preferences (I have LODCoef = 0.019).
- M is some value that changed by OFP developers (I use M=1 in WRPEdit and M=2 in P3DEdit).