public StreamAndElement getStreamAndElement(NIFFile file, String elementName, int preferredIndex)
{
foreach (NifMeshStream streamRef in streamRefs)
{
for (int i = 0; i < streamRef.elementDescs.Count(); i++)
{
Pair <String, int> pair = streamRef.elementDescs[i];
String elemCheckName = pair.getKey();
int elemCheckIndex = pair.getValue();
if (preferredIndex == -1 || elemCheckIndex == preferredIndex)
{
if (elemCheckName.StartsWith(elementName))
{
NiDataStream dataStream = (NiDataStream)file.getObject(streamRef.streamLinkID);
if (dataStream == null)
{
Debug.Log("null dataStream");
}
if (dataStream.streamElems == null)
{
Debug.Log("null dataStream.streamElems: " + dataStream);
}
if (i >= dataStream.streamElems.Count())
{
Debug.Log("WARNING: Data stream does not have enough elements.");
}
else
{
NifStreamElement elem = dataStream.streamElems[i];
return(new StreamAndElement(streamRef, elem, dataStream));
}
}
}
}
}
return(null);
}
public static MeshData prepareMesh(NIFFile nf, NiMesh mesh)
{
bool IS_TERRAIN = (nf.getStringTable().Contains("terrainL1"));
StreamAndElement indexStreamObj = mesh.getStreamAndElement(nf, "INDEX", -1);
NifMeshStream indexStreamRef = indexStreamObj.streamRef;
NiDataStream indexStream = indexStreamObj.dataStream;
NifStreamElement indexElem = indexStreamObj.elem;
StreamAndElement nStreamObj = mesh.getStreamAndElement(nf, "NORMAL", -1);
NifMeshStream nStreamRef = nStreamObj.streamRef;
NiDataStream nStream = nStreamObj.dataStream;
NifStreamElement nElem = nStreamObj.elem;
StreamAndElement uvStreamObj = mesh.getStreamAndElement(nf, "TEXCOORD", -1);
StreamAndElement uv2StreamObj = mesh.getStreamAndElement(nf, "TEXCOORD", 1);
StreamAndElement positionStreamObj = mesh.getStreamAndElement(nf, "POSITION", -1);
NifMeshStream posStreamRef = positionStreamObj.streamRef;
NiDataStream posStream = positionStreamObj.dataStream;
NifStreamElement posElem = positionStreamObj.elem;
DataType indexDataType = typeForNifDataType(indexStreamObj.elem.dataType);
DataType posDataType = typeForNifDataType(positionStreamObj.elem.dataType);
if (posDataType != DataType.FLOAT)
{
throw new Exception("Unknown position types");
}
MeshData meshData = new MeshData();
List <Vector3> verts = meshData.verts;
List <Vector2> uvs = meshData.uvs;
List <List <int> > triangles = meshData.triangles;
List <Vector3> inNormals = meshData.inNormals;
List <BoneWeight> boneWeights = meshData.boneWeights;
for (int i = 0; i < mesh.numSubMeshes; i++)
{
List <int> bonePalette = new List <int>();
int vOffset = verts.Count;
/** vertices */
StreamRegion posRegion = posStream.streamRegions[posStreamRef.submeshRegionMap[i]];
int posOfs = posRegion.a * posStream.elemStride;
int posEnd = posOfs + posRegion.b * posStream.elemStride;
byte[] posStreamData = posStream.streamData;
using (BinaryReader dis = new BinaryReader(new MemoryStream(posStreamData, posOfs, posEnd - posOfs)))
{
// Debug.Log("\tverts:" + posRegion.b);
for (int v = 0; v < (posEnd - posOfs) / posStream.elemStride; v++)
{
float x = dis.readFloat();
float y = dis.readFloat();
float z = dis.readFloat();
verts.Add(new Vector3(x, y, z));
}
//Debug.Log("pos: left over: " + (dis.BaseStream.Length - dis.BaseStream.Position));
}
/** faces */
StreamRegion idxRegion = indexStream.streamRegions[indexStreamRef.submeshRegionMap[i]];
int idxOfs = idxRegion.a * indexStream.elemStride;
DataType idxType = typeForNifDataType(indexStreamObj.elem.dataType);
int idxEnd = idxOfs + idxRegion.b * indexStream.elemStride;
byte[] idxStreamData = indexStream.streamData;
List <int> tris = new List <int>();
using (BinaryReader dis = new BinaryReader(new MemoryStream(idxStreamData, idxOfs, idxEnd - idxOfs)))
{
for (int idx = 0; idx < (idxEnd - idxOfs) / indexStream.elemStride; idx++)
{
int v1x = (dis.readUnsignedShort()) + vOffset;
tris.Add(v1x);
}
//Debug.Log("idx left over:" + (dis.BaseStream.Length - dis.BaseStream.Position));
}
triangles.Add(tris);
{
/** uvs */
if (uvStreamObj != null)
{
NiDataStream uvStream = uvStreamObj.dataStream;
StreamRegion uvRegion = uvStreamObj.dataStream.streamRegions[uvStreamObj.streamRef.submeshRegionMap[i]];
DataType uvType = typeForNifDataType(uvStreamObj.elem.dataType);
int uvOfs = uvRegion.a * uvStream.elemStride;
int uvEnd = uvOfs + uvRegion.b * uvStream.elemStride;
byte[] uvStreamData = uvStream.streamData;
//Debug.Log("uv datatype:" + uvType + ":" + uvStream.elemStride);
using (BinaryReader dis = new BinaryReader(new MemoryStream(uvStreamData, uvOfs, uvEnd - uvOfs)))
{
for (int uv = 0; uv < (uvEnd - uvOfs) / uvStream.elemStride; uv++)
{
float u = dis.readFloat();
float v = dis.readFloat();
uvs.Add(new Vector2(u, v));
}
}
}
/** normals */
if (nStreamObj != null)
{
StreamRegion nRegion = nStreamObj.dataStream.streamRegions[nStreamObj.streamRef.submeshRegionMap[i]];
DataType nType = typeForNifDataType(nStreamObj.elem.dataType);
int nOfs = nRegion.a * nStream.elemStride;
int nEnd = nOfs + nRegion.b * nStream.elemStride;
byte[] nStreamData = nStream.streamData;
using (BinaryReader dis = new BinaryReader(new MemoryStream(nStreamData, nOfs, nEnd - nOfs)))
{
for (int n = 0; n < (nEnd - nOfs) / nStream.elemStride; n++)
{
float x = dis.readFloat();
float y = dis.readFloat();
float z = dis.readFloat();
inNormals.Add(new Vector3(x, y, z));
}
}
}
/** bone palette */
{
StreamAndElement bonePalStreamObj = mesh.getStreamAndElement(nf, "BONE_PALETTE", -1);
if (bonePalStreamObj != null)
{
NifMeshStream bonePalStreamRef = bonePalStreamObj.streamRef;
NiDataStream bonePalStream = bonePalStreamObj.dataStream;
NifStreamElement bonePalElem = bonePalStreamObj.elem;
StreamRegion bonePalRegion = bonePalStreamObj.dataStream.streamRegions[bonePalStreamObj.streamRef.submeshRegionMap[i]];
DataType bonePalType = typeForNifDataType(bonePalStreamObj.elem.dataType);
int bonePalOfs = bonePalRegion.a * bonePalStream.elemStride;
int bonePalEnd = bonePalOfs + bonePalRegion.b * bonePalStream.elemStride;
byte[] bonePalStreamData = bonePalStream.streamData;
using (BinaryReader dis = new BinaryReader(new MemoryStream(bonePalStreamData, bonePalOfs, bonePalEnd - bonePalOfs)))
{
for (int n = 0; n < (bonePalEnd - bonePalOfs) / bonePalStream.elemStride; n++)
{
bonePalette.Add(dis.readUnsignedShort());
}
}
}
}
{
/** blend indicies */
StreamAndElement StreamObj = mesh.getStreamAndElement(nf, "BLENDINDICES", -1);
if (StreamObj != null)
{
NifMeshStream StreamRef = StreamObj.streamRef;
NiDataStream Stream = StreamObj.dataStream;
StreamRegion Region = StreamObj.dataStream.streamRegions[StreamObj.streamRef.submeshRegionMap[i]];
DataType type = typeForNifDataType(StreamObj.elem.dataType);
int Ofs = Region.a * Stream.elemStride;
int End = Ofs + Region.b * Stream.elemStride;
byte[] StreamData = Stream.streamData;
//Debug.Log("blendi stride:" + Stream.elemStride + ": type:" + type);
// each vertex has a blend index
using (BinaryReader dis = new BinaryReader(new MemoryStream(StreamData, Ofs, End - Ofs)))
{
for (int n = 0; n < (End - Ofs) / Stream.elemStride; n++)
{
byte idx1 = dis.ReadByte();
byte idx2 = dis.ReadByte();
byte idx3 = dis.ReadByte();
byte idx4 = dis.ReadByte();
BoneWeight weight = new BoneWeight();
weight.boneIndex0 = bonePalette[idx1];
weight.boneIndex1 = bonePalette[idx2];
weight.boneIndex2 = bonePalette[idx3];
weight.boneIndex3 = bonePalette[idx4];
boneWeights.Add(weight);
}
//Debug.Log("blend: left over: " + (dis.BaseStream.Length - dis.BaseStream.Position));
}
}
}
{
/** blend weights */
StreamAndElement StreamObj = mesh.getStreamAndElement(nf, "BLENDWEIGHT", -1);
if (StreamObj != null)
{
NifMeshStream StreamRef = StreamObj.streamRef;
NiDataStream Stream = StreamObj.dataStream;
StreamRegion Region = StreamObj.dataStream.streamRegions[StreamObj.streamRef.submeshRegionMap[i]];
DataType type = typeForNifDataType(StreamObj.elem.dataType);
int Ofs = Region.a * Stream.elemStride;
int End = Ofs + Region.b * Stream.elemStride;
byte[] StreamData = Stream.streamData;
using (BinaryReader dis = new BinaryReader(new MemoryStream(StreamData, Ofs, End - Ofs)))
{
int total = (End - Ofs) / Stream.elemStride;
// each vertex has weights
for (int n = 0; n < total; n++)
{
BoneWeight w = boneWeights[n + vOffset];
w.weight0 = dis.readFloat();
w.weight1 = dis.readFloat();
w.weight2 = dis.readFloat();
w.weight3 = 0;
boneWeights[n + vOffset] = w;
}
}
}
}
}
}
if (IS_TERRAIN && uvs.Count == 0)
{
for (int i = 0; i < verts.Count; i++)
{
Vector3 vert = verts[i];
float x = vert.x;
float z = vert.z;
float u = (x / 256.0f);
float v = (z / 256.0f);
uvs.Add(new Vector2(u, v));
}
}
List <int> trisList = new List <int>();
for (int i = 0; i < triangles.Count; i++)
{
List <int> tris = triangles[i];
trisList.AddRange(tris);
}
meshData.tristest = trisList.ToArray();
return(meshData);
}
private void loadObjects(BinaryReader dis)
{
for (int i = 0; i < numObjects; i++)
{
NIFObject obj = objects[i];
obj.index = i;
String typeName = obj.typeName;
int size = obj.nifSize;
byte[] data;
String cName = "Assets.NIF." + typeName;
try
{
long pos = dis.BaseStream.Position;
data = dis.ReadBytes(size);
if (notImplementedMap.ContainsKey(typeName))
{
continue;
}
using (BinaryReader ds = new BinaryReader(new MemoryStream(data, false)))
{
if (typeName.StartsWith("NiDataStream"))
{
NiDataStream newObj = new NiDataStream();
newObj.parse(this, obj, ds);
objects[i] = newObj;
}
else
{
NIFObject newObj;
//if (typeName.Contains("Eval"))
//Debug.Log("[" + i + "]: type[" + typeName + "] @ " + pos);
if (typeCacheC.ContainsKey(typeName))
{
newObj = (NIFObject)typeCacheC[typeName].Invoke();
}
else
{
// Debug.LogWarning("[PERFORMANCE WARNING] using activator for " + typeName);
Type t = Type.GetType(cName);
if (t == null)
{
notImplementedMap[typeName] = true;
continue;
}
else
{
newObj = (NIFObject)Activator.CreateInstance(t);
}
}
objects[i] = newObj;
try
{
newObj.parse(this, obj, ds);
}
catch (Exception ex)
{
Debug.Log(ex);
}
}
}
//Debug.Log("[" + i + "]: " + objects[i].GetType());
} catch (Exception ex)
{
Debug.Log(typeName + ":" + ex);
//Debug.Log("Unhandled nif type:" + typeName + " due to exception:" + ex.Message + " :data size:" + obj.nifSize);
notImplementedMap[typeName] = true;
continue;
}
}
setParents();
}
public StreamAndElement(NifMeshStream streamRef, NifStreamElement elem2, NiDataStream dataStream)
{
this.streamRef = streamRef;
elem = elem2;
this.dataStream = dataStream;
}