ELU format

Header

Size	Content
4 byte integer	Signature1
4 byte integer	Version
4 byte integer	Material count
4 byte integer	Mesh count

¹: Must be 0x0107f060.

0x5012

Contains the ELU header and then an array of meshes, the number of which is stored in the header.

Mesh

In the following, "array of X" means a 4 byte integer that describes the size, and then size instances of X. Thus, the total size is 4 + size * sizeof(X).

Size	Content
Array of chars	Name
Array of chars	???
12 bytes	???
4x4 float matrix	World transform
8 bytes	???
Array of float3	Vertex positions
Array of float3	Vertex normals
Array of float4	Vertex tangents
4 bytes	???
Array of float3	Vertex texture coordinates
Array of float3	???
4 byte integer	???1
4 bytes	???2
Array of arrays of 12 bytes + 2 bytes	???2
floatx3 array	???
4 bytes	???
Array of 6x2 bytes	Subindices3
Array of arrays of 8 bytes	???
Array of 2 bytes	Vertex indices
Array of 12 bytes	DrawProp data4
Array of 2*float3 bytes	???

¹: If this value is below or equal to 0, the values marked ² are not present.

³: Describes the order of the vertex data. Example: If the subindices are {1, 0}, and the vertex positions are {{0, 0, 0}, {1, 1, 1}}, the indices expect the vertex positions to be {{1, 1, 1}, {0, 0, 0}}.

⁴: Describes a single drawable unit of the mesh. It contains: A 4-byte material index, a 2-byte index base, a 2-byte triangle count, and 4 unknown bytes. If the material index is below 0, it should not be drawn.