JMXVBMT

12  char[]  signature                       //JMXVBMT 0102

//CPrimMtrlSet::Read(pFM, pMtrlSet)
4   uint    mtrlCnt
for(int i = 0; i < mtrlCnt; i++)
{
    //CPrimMtrl::Read(pFM, pMtrl)
    4   uint    mtrl.Name.Length            
    *   string  mtrl.Name                   
    16  Color4  mtrl.Color0                 
    16  Color4  mtrl.Color1                 
    16  Color4  mtrl.Color2                 
    16  Color4  mtrl.Color3                 
    4   float   mtrl.unkFloat0              
    4   uint    mtrl.Flag                   //PrimMtrlFlag
    
    //CPrimMtrl::ReadDiffuseMap(pFM, &pMtrl->pMtrlDiffuseMap)
    {
        4   uint    mtrl.DiffuseMap.Path.Length         // empty / 0 for some materials
        *   string  mtrl.DiffuseMap.Path
        4   float   mtrl.DiffuseMap.Float1
        1   byte    mtrl.DiffuseMap.Byte0
        1   byte    mtrl.DiffuseMap.Byte1
        1   bool    mtrl.DiffuseMap.IsRelative          // texture path is relative
    }

    // Not in VSRO 1.188
    if(mtrl.Flag & PrimMtrlFlag.Bit14)
    {
        4   uint    mtrl.NormalMap.Length
        *   string  mtrl.NormalMap
        4   uint    mtrl.NormalMap.Int0
    }
}

[Flags]
public enum PrimMtrlFlag : int
{
    //None = 0,
    Bit1 = 0x1,

    Bit2 = 0x2,
    Bit3 = 0x4,
    Bit4 = 0x8,
    Bit5 = 0x10,
    Bit6 = 0x20,

    /// <summary>
    /// ColorTint?
    /// </summary>
    Bit7 = 0x40,

    Bit8 = 0x80,

    /// <summary>
    /// DiffuseMap?
    /// </summary>
    Bit9 = 0x100,

    /// <summary>
    /// Alpha channel, also for metalic sheen
    /// </summary>
    Bit10 = 0x200,

    Bit11 = 0x400,
    Bit12 = 0x800,
    Bit13 = 0x1000,

    /// <summary>
    /// BumpMap
    /// </summary>
    Bit14 = 0x2000,

    Bit15 = 0x4000,
    Bit16 = 0x8000,
    Bit17 = 0x10000,
    Bit18 = 0x20000,
    Bit19 = 0x40000,
    Bit20 = 0x80000,
    Bit21 = 0x100000,
    Bit22 = 0x200000,
    Bit23 = 0x400000,
    Bit24 = 0x800000,
    Bit25 = 0x1000000,
    Bit26 = 0x2000000,
    Bit27 = 0x4000000,
    Bit28 = 0x8000000,
    Bit29 = 0x10000000,
    Bit30 = 0x20000000,
    Bit31 = 0x40000000,
    //Bit32 = 0x80000000,
}