3DF

The 3DF files are used in Carnivores, Carnivores 2, and Carnivores Ice Age as 3D model files for the binoculars, compass, sun, and moon, and are located in the \HUNTDAT folder.

The 3DF format is a simplified version of the CAR format, lacking animations, sounds, and the ModelName field in the header, though 3DF files have bones, which CAR files lack. This format is also slightly different from the format of objects in RSC files, which support animations; Alt Editor can export RSC objects as 3DF files, and object animations as VTL files.

Code[]

...

Format[]

// for each face (64 bytes)

uint32

4

v1

vertex 1

uint32

4

v2

vertex 2

uint32

4

v3

vertex 3

uint32

4

tax

v1 texture U coordinate

uint32

4

tbx

v2 texture U coordinate

uint32

4

tcx

v3 texture U coordinate

uint32

4

tay

v1 texture V coordinate

uint32

4

tby

v2 texture V coordinate

uint32

4

tcy

v3 texture V coordinate

uint16

2

flags

bit

1

sfDoubleSide

0x0001

marks face as textured on both sides

bit

1

sfDarkBack

0x0002

marks face as having a dark back side

bit

1

sfOpacity

0x0004

marks face as transparent

bit

1

sfTransparent

0x0008

marks face as non-solid (bullets pass through harmlessly)

bit

1

sfMortal

0x0010

marks face as a target zone

bit

1

sfPhong

0x0020

marks face as Phong mapped

bit

1

sfEnvMap

0x0040

marks face as Environment mapped

bit

1

sfNeedVC

0x0080

bit

7

unused

bit

1

sfDark

0x8000

marks face as having a dark front side

uint16

2

DMask

appears to be unused by the games, possibly editor/tool-specific

uint32

4

Distant

purpose unknown

uint32

4

Next

some sort of index to other faces?

uint32

4

group

appears to be unused by the games, possibly editor/tool-specific

byte

12

reserv

0x00

unused; reserved for future use

// for each vertex (16 bytes)

float

4

X coordinate

float

4

Y coordinate

float

4

Z coordinate

uint16

2

owner

bone to which vertex is attached

uint16

2

hide

whether the vertex is hidden in Designer 2; has no effect in-game

// for each bone (48 bytes)

byte

32

name

float

4

X coordinate

float

4

Y coordinate

float

4

Z coordinate

int16

2

index to the parent bone, -1 if there is no parent

uint16

2

whether the bone is hidden in Designer 2; has no effect in-game

byte

TextureSize

texture

16-bit TGA-style encoding in BGRA5551 format, always 256 pixels wide

Notes[]

The sfPhong and sfEnvMap flags are actually assigned values of 0x30 and 0x50 in the game source, meaning models with these flags will also set sfMortal on the same faces. Fortunately, weapons are the only objects to use the sfPhong and sfEnvMap flags. Furthermore, the code will still work correctly if these flags are set but sfMortal is not. Animator uses the correct values of 0x20 and 0x40 for these flags.
The alpha channel in the image is unused; instead, the game engine uses the alpha flag to determine which triangles are transparent on a model.

External links[]

The .3df files on La saga de Carnivores
Carnivores 1, 2 and Ice Age .3df files thread on The Carnivores Saga