3dbrew

CGFX: Difference between revisions

← Older editNewer edit →
Line 292: Line 292:
|-
|-
| 0x0
| 0x0
| 0x3
| 0x4
| Flags ?
| Flags (bit 4: model; bit 1: skeleton)
|-
| 0x4
| 0x4
| Magic "SOBJ"
|-
| 0x8
| 0x4
| ?
|-
| 0xC
| 0x4
| Unknown symbol offset (self-relative)
|-
| 0x10
| 0xC
| ?
|-
| 0x1C
| 0x4
| Unknown offset (self-relative) (appears to hold array of floats) ?
|-
| 0x20
| 0xC
| ?
|-
| 0x2C
| 0x4
| Face groups count
|-
| 0x30
| 0x4
| Offset (self-relative) to face groups offset array
|-
| 0x34
| 0x4
| ?
|-
| 0x38
| 0x4
| Vertex groups count
|-
| 0x3C
| 0x4
| Offset (self-relative) to vertex groups offset array
|-
| 0x40
| 0x4
| Unknown offset (self-relative) ?
|}
 
Face groups:
 
{| class="wikitable"
|-
! Offset
! Length
! Description
|-
| 0x0
| 0x4
| Bone groups count
|-
| 0x4
| 0x4
| Offset (self-relative) to 4-byte bone group IDs array
|-
| 0x8
| 0x4
| ?
|-
| 0xC
| 0x4
| Unknown1 count
|-
| 0x10
| 0x4
| Offset (self-relative) to Unknown1 offset array
|}
 
Unknown1:
 
{| class="wikitable"
|-
! Offset
! Length
! Description
|-
| 0x0
| 0x4
| Face group descriptor count
|-
| 0x4
| 0x4
| Offset (self-relative) to face group descriptors offset array
|-
| 0x8
| 0x4
| Unknown3 count
|-
| 0xC
| 0x4
| Offset (self-relative) to 4-byte Unknown2 array
|-
| 0x10
| 0x8
| ?
|}
 
Face array descriptor:
 
{| class="wikitable"
|-
! Offset
! Length
! Description
|-
| 0x0
| 0x4
| Flags (bit 1: vertex index format: 0=byte, 1=short)
|-
| 0x4
| 0x4
| ?
|-
| 0x8
| 0x4
| Vertex index array size (in bytes)
|-
| 0xC
| 0x4
| Offset (self-relative) to vertex index array
|}
 
 
Vertex group objects come in one of several formats, specified by the flags field.
 
Vertex group format 0x40000001: (?)
 
{| class="wikitable"
|-
! Offset
! Length
! Description
|-
| 0x0
| 0x4
| Flags (0x40000001)
|-
| 0x4
| 0x4
| Type ?
|-
| 0x8
| 0x4
| ?
|-
| 0xC
| 0x4
| ?
|-
| 0x10
| 0x4
| ?
|-
| 0x14
| 0x4
| Vertex array size (in bytes)
|-
| 0x18
| 0x4
| Offset (self-relative) to vertex array
|-
| 0x1C
| 0x4
| ?
|-
| 0x20
| 0x4
| ?
|-
|-
| 0x3
| 0x24
| 0x1
| 0x1
| SOBJ type ? (0x10 = model, 0x02 = skeleton)
| ?
|-
| 0x25
| 0x1
| ?
|-
| 0x26
| 0x1
| ?
|-
| 0x27
| 0x1
| ?
|-
| 0x28
| 0x4
| ?
|-
| 0x2C
| 0x4
| ? (float)
|-
|-
| 0x30
| 0x4
| 0x4
| ?
|}
Vertex group format 0x40000002:
{| class="wikitable"
|-
! Offset
! Length
! Description
|-
| 0x0
| 0x4
| 0x4
| Magic "SOBJ"
| Flags (0x40000002)
|-
| 0x4
| 0x4
| ?
|-
|-
| 0x44
| 0x8
| 0x4
| 0x4
| Y = Offset (self-relative) to bone correspondance array
| ?
|-
|-
| 0x48
| 0xC
| 0x4
| 0x4
| X = Offset (relative to SOBJ magic) to SOBJ data structure (wrong ?)
| ?
|-
|-
| 0x44+Y+0x00
| 0x10
| 0x4
| 0x4
| N = Number of bone IDs in bone correspondance array
| ?
|-
|-
| 0x44+Y+0x14
| 0x14
| 0x4*N
| 0x4
| Bone correspondance array
| Vertex array size (in bytes)
|-
|-
| X+0x18
| 0x18
| 0x1
| 0x4
| Face data format (?) : 0x1 = u8, 0x3 = u16
| Offset (self-relative) to vertex array
|-
|-
| X+0x20
| 0x1C
| 0x4
| 0x4
| Face data section size (in bytes)
| ?
|-
|-
| X+0x24
| 0x20
| 0x4
| 0x4
| Face data section offset (self-relative)
| ?
|-
|-
| X+0x58
| 0x24
| 0x4
| 0x4
| Vertex data section size (in bytes)
| Vertex format size (see below)
|-
|-
| X+0x5C
| 0x28
| 0x4
| 0x4
| Vertex data section offset (self-relative)
| Unknown3 count
|-
|-
| X+0x68
| 0x2C
| 0x1
| 0x4
| Vertex data format size (in bytes)
| Offset (self-relative) to 0x40000001 offset array
|}
|}
Vertex formats:


{| class="wikitable"
{| class="wikitable"
Retrieved from "https://www.3dbrew.org/wiki/CGFX"