blob: 9292bfb68a0a6affe901829049dc426451873583 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
These are the formats for the various O3D objects that can be stored in binary.
NOTE:
All int16, uint16, int32, uint32 and floats are stored in LITTLE ENDIAN format.
------------------------ Buffer ------------------------------------------------
A Buffer (VertexBuffer, SourceBuffer, IndexBuffer) are all stored as follows.
// Header
uint8[4] id : A 4 byte ID with the ascii characters "BUFF"
int32 version : A version number. Must be 1
int32 numFields : The number of fields in the buffer.
// For each field
uint8 fieldType : Type of field. 1 = FloatField, 2 = UInt32Field, 3 = UByteNField.
uint8 numComponents : The number of components for that field.
// End for
// stored once.
uint32 numElements : The number of elements in the buffer.
// For each field. Depending on the type of field
// If FloatField
float[numElements * numComponents]
// If UInt32Field
uint32[numElements * numComponents]
// If UByteNField
uint8[numElements * numComponents]
// End for
------------------------ Curve -------------------------------------------------
A Curve is stored as follows.
// Header
uint8[4] id : A 4 byte ID with the ascii characters "CURV"
int32 version : A version number. Must be 1
// For each key in the Curve
uint8 keyType : The type of key. 1 = StepCurveKey, 2 = LinearCurveKey, 3 = BezierCurveKey
float input : The input of the key
float output : The output of the key
// If it is a BezierCurveKey
float inTangentX : the x component of the in tangent.
float inTangentY : the y component of the in tangent.
float outTangentX : the x component of the out tangent.
float outTangentY : the y component of the out tangent.
// End for
------------------------ Skin --------------------------------------------------
A Skin is stored as follows.
// Header
uint8[4] id : A 4 byte ID with the ascii characters "SKIN"
int32 version : A version number. Must be 1
// For each vertex in the skin
int32 numInfluences : The number of influences on this vertex.
// For each influence
int32 matrixIndex : the Index of a matrix that affects this vertex.
float weight : The weight for this matrix.
// End for each influence
// End for each vertex
|
