The .csm file format

Darkened cells indicate stacked data, i.e. “for 1 to groups read the group structure”.

The basic structure looks like this:

Groups

Lightmaps

           Pixels

Meshes

           Surfaces

                      Vertices

                      Triangles

                      Lines

Entities

 

Data type

Variable

Explanation

 

long

version

Should be 4

 

long

groups

Number of groups

long

flags

 

long

group

This group’s group (if applicable)

string

properties

Entity properties

long

red

Object color

long

green

Object color

long

blue

Object color

 

long

lightmaps

Number of lightmaps

long

width

 

long

height

 

long

RGBA

Pixel color

 

long

meshes

Number of meshes

long

flags

 

long

group

 

string

properties

Entity properties

long

red

Object color

long

green

Object color

long

blue

Object color

float

x

Center position

float

y

Center position

float

z

Center position

long

surfaces

Number of surfaces

 

long

flags

 

string

texturename

Texture name in the format “subdirectory\texture.jpg”

long

lightmap

Lightmap index

float

U offset

Texture mapping parameters

float

V offset

Texture mapping parameters

float

U scale

Texture mapping parameters

float

V scale

Texture mapping parameters

float

rotation

Texture mapping parameters

long

vertices

Number of vertices

long

triangles

Number of triangles

long

lines

Number of lines

 

float

x

Position

float

y

 

float

z

 

float

nx

Normal

float

ny

 

float

nz

 

long

red

Color

long

green

 

long

blue

 

float

U

Texture coordinates

float

V

 

float

W

 

float

U

Lightmap coordinates

float

V

 

float

W

 

 

long

a

Triangle vertices

long

b

 

long

c

 

 

long

a

Line vertices

long

b

 

 

long

entities

Number of entities

long

flags

 

long

group

 

string

properties

Entity properties

float

x

Position

float

y

 

float

z

 

 

float

x

Camera position

float

y

 

float

z

 

float

pitch

Camera rotation

float

yaw