[question] .xmf files

[St4n]

Is there currently any software allowing to edit these files or maybe a compiler which change them to as usable format?

If not, is anyone looking into this matter or do we have to wait until ES releases some tool or compiler?

[Observe]

Several of us looked into this some time ago, and there are Cal3d exporters for 3DS Max - which is what ES is using. We can export .xmf mesh files, but we haven't exactly sorted out the binary encoding that ES is using. Additional information has been requested and investigation is ongoing.

[St4n]

Thx, for the information. I'll wait.

[hhr]

and there are Cal3d exporters for 3DS Max - which is what ES is using.

why you think so, only because of a similar file extension??

[hhr]

Code: Select all

// header
char magic[4];      // = {'X', 'U', 'M', 'F'}
short version;      // 0x0003 (3) ???
short chunkOffset;  // 0x0040 (64) ???
char chunkCount;    // 2 <= N <= 11
char chunkSize;     // 0x38 | 0xBC (56 | 188)
char materialCount;
char unknown1;      // 0x88 (136)
char unknown2;      // 0x01 (1)
char unknown3;      // 0x00 (0)
int vertexCount;
int indexCount;     // (number of triangles) x 3
int unknown4;       // 0x00000004 (4)
int unknown5;       // 0 - models, 1 - collision ???
char zeros[34];      // 34 x 0x00


// chunks
// absolute offset (64)
{
    int id1;            // 0|2|3|4|6|8|30
    int part;           // 0|1|2|3|4 (++ when current.id1 == prevouis.id1) (101 - error?)
    int offset          // relative to gzipped data start
    int one1;           // 0x00000001 (1)
    int zero;           // 0x00000000 (0)
    int id2;            // 1|2|4|15|16|30|31|32
    int size;           // packed size
    int elementCount;
    int bytesPerElement;// 2|4|8|12|16|20|24|28|32|36|40|44|48|60|64
    int one2;           // 0x00000001 (1)
    char unknownData[chunkSize - 40];   // 16|148 bytes
}
// ...
// repeat (chunkCount) times


// materials
// absolute offset (64 + chunkCount * chunkSize)
if materialCount > 0 {
    {
        int indexStart;
        int indexCount;
        char materialName[128];
    }
    // ...
    // repeat (materialCount) times
}


// gzipped data
// absolute offset (64 + (chunkCount*chunkSize) + (materialCount*136))
char data[];

some examples for *-collision.xmf:

[ external image ] [ external image ] [ external image ] [ external image ] [ external image ]


known chunks:
id1=0, id2=2, bytesPerElement=12 — vertex buffer; point(float, float, float)
id1=30, id2=31, bytesPerElement=4 — index buffer; face(int, int, int)
id1=30, id2=30, bytesPerElement=2 — index buffer; face(short, short, short)
...

[balogt]

any chance you have a plugin for 3dsmax made yet? doubleshadow is a wiz at that kind of thing...makes opening the files soooo much easier.

[hhr]

i do not use 3DS Max, thank God, there are many other free editors.

file format and the data is not yet fully understood, so about the finished product are not talking.

[hhr]

test converter to Wavefront OBJ - https://github.com/hhrhhr/Lua-utils-for-X-Rebirth

usage:

Code: Select all

tools\luajit.exe lua\xmf2obj.lua path_to_xmf [output_dir [output_name|dump]]

output_dir - default "."
output_name - default "out" (out.obj + out.mtl)

not all models can be converted. if instead of the "output_name" write "dump", then the script will extract the binary data (header and body) for further study.

Capital Destroyer:
[ external image ][ external image ][ external image ][ external image ][ external image ][ external image ]