[WIP] Silkroad File Formats (.bsr .bms .bmt .bsk .ban )

[theonly112]

I'm currently trying to work out some of the different structures of the files within the pk2's


.bsr Resource file. References meshes, materials, animations, skeletons etc.
.bms Meshes
.bmt Material file that references different .ddj textures
.ban Animation
.bsk Skeleton


.bsr Structure

12 byte Header
52 byte unknown. Havn't look into those
int bsrType; rages from 0x20000 to 0x20006 (could be more)
string bsrTitle;
From here on out they seem to differ depending on their bsrType
28 byte unknown
string meshReference Not in every .bsr. References a .bms file. Although the .bms file referenfces come later.
float[2,6] boundingBox; outlines the mesh
int unknown;

int bmtFileCount;
int unknown;
string[btmFileCount] paths to the different materials used on the model

int bmsFileCount;
string[bmsFileCount] paths to the different meshes used 

int unknown
int unknown

int banFileCount;
string[banFileCount] paths to the different animation files 

int bskFileCount; should be 1 for most models
string[bskFileCount] path to the skeleton files.

this is how far im parsing these files right now

.bms Structure
12 Bytes header
int index; position in the stream where the vertex information start
48 bytes uknown
int lightmapResolution; as far as i can tell. didnt check yet
int uknown
string meshname;
string materialname; 
int unknown;
int vertexCount;

for(int i = 0; i < vertexCount;i++)
{
    float[3] vertices
    float[3] normals
    float[2] textureUV
    if(lightmapResolution != 0)
    {
        float[2] lightmapUV
    }
   12 bytes uknown //didnt look into this yet
}

if(lightmapResolution != 0)
{
   string lightmapPath;
}
int boneCount; 
string[boneCount] bones

if(boneCount != 0)
{
   vertCount * 6 of unkown data. Have not looked into this yet
}

int faceCount

for(int i = 0; i < faceCount;i++)
{
    int16[i,3] faces;
}

.bmt structure
12 byte header
int textureCount
for(int i = 0; i < textureCount;i++)
{
   string name; // will be used in the mesh to identify which texture to use
   48 bytes of unknown data 
   string texturefilename;
   7bytes of unkown data
}

.ban structure 
I havn't looked into these very much yet. Basicly everything is guessed right now.
12 byte header
int unk
int unk 
string name; of the animation
int timeInMs; I assume this is the duration of the animation
int framesPerSecond? just a guess (seems to always be 30)
int unk
int keyframeCount; pure guess. but would make sense
int[keyframeCount] keyframes;
int boneCount
for(int i = 0; i < boneCount;i++)
{
   string boneName;
   int count; same as keyframeCount
   for(int p = 0; p < count;p++)
   {
       Vec4 rotation;
       Vec3 transform;
   }
}
//End of file

.bsk structure
So thanks to this post

12 byte header
int boneCount;
for(int i = 0; i < boneCount;i++)
{
      if(not first bone)
      {
            int count; // Number of bones with same parent bone. Bone itself included
            for(int x = 0; x < count; x++)
            {
                  string boneName;
            }
      }
      byte unk;
      string boneName;
      string parentBoneName;
      //This next part is taken from Cruor's post.
      Vec4 rotationToParent;
      Vec3 translationToParent;
      Vec4 rotationToOrigin;
      Vec3 translationToOrigin
      Vec4 rotationUnkown;
      Vec3 translationUnkown;     
}
int unk;
int unk;
int unk;

//End of file

I will edit my post as i learn more about the structures.

Please excuse the poor structure of my post and also my bad english.

[MentaL]

[antoha]

Ty this is a rather usefull post, now I got some ideas on why the blue soul avatar might not be working, I will test my new theory and post results here ^_^

P.s only I have noticed this or this is a VERY inaffitient way to use models? I sepose u can make all of this in two files. . . Unless u want to reuae some files (skelet structure) for example. But that would be kinda. . . Lazy xD

[Jangan]

what is .ban used for? monster structure?

[theonly112]

what is .ban used for? monster structure?

It's under the image

.bsr Resource file. References meshes, materials, animations, skeletons etc.
.bms Meshes
.bmt Material file that references different .ddj textures
.ban Animation
.bsk Skeleton

[nemo07]

It's under the image

.bsr Resource file. References meshes, materials, animations, skeletons etc.
.bms Meshes
.bmt Material file that references different .ddj textures
.ban Animation
.bsk Skeleton

that's good info. for me, Im already working on it too So when I finished anything I will release it . isA

[adrianrele]

for edit ?

[theonly112]

Added the .bsk stuff.
.bsk structure
So thanks to this post

12 byte header
int boneCount;
for(int i = 0; i < boneCount;i++)
{
      if(not first bone)
      {
            int count; // Number of bones with same parent bone. Bone itself included
            for(int x = 0; x < count; x++)
            {
                  string boneName;
            }
      }
      byte unk;
      string boneName;
      string parentBoneName;
      //This next part is taken from Cruor's post.
      Vec4 rotationToParent;
      Vec3 translationToParent;
      Vec4 rotationToOrigin;
      Vec3 translationToOrigin
      Vec4 rotationUnkown;
      Vec3 translationUnkown;     
}
int unk;
int unk;
int unk;

//End of file

Now i'm gonna look into this part of the .bms.

if(boneCount != 0)
{
   vertCount * 6 of unkown data. Have not looked into this yet
}

I hope this contains info that links vertices to bone's. But i can't make sense out of that yet.

Pastebin to expample data

any help is obviously greatly appreciated.

[nemo07]

Added the .bsk stuff.
.bsk structure
So thanks to this post

12 byte header
int boneCount;
for(int i = 0; i < boneCount;i++)
{
      if(not first bone)
      {
            int count; // Number of bones with same parent bone. Bone itself included
            for(int x = 0; x < count; x++)
            {
                  string boneName;
            }
      }
      byte unk;
      string boneName;
      string parentBoneName;
      //This next part is taken from Cruor's post.
      Vec4 rotationToParent;
      Vec3 translationToParent;
      Vec4 rotationToOrigin;
      Vec3 translationToOrigin
      Vec4 rotationUnkown;
      Vec3 translationUnkown;     
}
int unk;
int unk;
int unk;

//End of file

Now i'm gonna look into this part of the .bms.

if(boneCount != 0)
{
   vertCount * 6 of unkown data. Have not looked into this yet
}

I hope this contains info that links vertices to bone's. But i can't make sense out of that yet.

Pastebin to expample data

any help is obviously greatly appreciated.

But the main files that are Important (.bms , .bsr ) , and I have the .bms But I'm working to connect them with each other .

[theonly112]

Skeleton stuff seems to be correct:

[nemo07]

That's Great for the information that we reached . I finished the models and textures and what I need is to connect the .bms with the .bsr to appear in Game I wanna know how :)

[Anthony1]

That's Great for the information that we reached . I finished the models and textures and what I need is to connect the .bms with the .bsr to appear in Game I wanna know how :)

after you convert the obj to bms edit it with a hex editor. Its in like the very beginning.

[nemo07]

after you convert the obj to bms edit it with a hex editor. Its in like the very beginning.

Thx bro , But I did what you said and nothing appear in the game IDK why. I finished all CH weapons as a models + texture and I cant connect them into the client BTW I hope GOD will help me :)

Skeleton stuff seems to be correct:

Can we change his underwear ? :D

[Airdraw]

If you work hard, you can achieve the hardest.

[Airdraw]

Where are .bsr files allocated?
I can't find any, for example eu_tsword_11_set_b.bsr

// Solved, they're not hidden just you may use your brain :)
Data.pk2 / Res / ---

[InsaneDev]

can you creat or just view for now??