public TextAsset(AssetPreloadData preloadData, bool readSwitch)
{
AssetsFile sourceFile = preloadData.sourceFile;
EndianStream stream = preloadData.sourceFile.a_Stream;
stream.Position = preloadData.Offset;
preloadData.extension = ".txt";
if (sourceFile.platform == -2)
{
uint num2 = stream.ReadUInt32();
PPtr ptr = sourceFile.ReadPPtr();
PPtr ptr2 = sourceFile.ReadPPtr();
}
this.m_Name = stream.ReadAlignedString(stream.ReadInt32());
if (this.m_Name != "")
{
preloadData.Name = this.m_Name;
}
else
{
preloadData.Name = preloadData.TypeString + " #" + preloadData.uniqueID;
}
int count = stream.ReadInt32();
if (readSwitch)
{
this.m_Script = new byte[count];
stream.Read(this.m_Script, 0, count);
if (this.m_Script[0] == 0x5d)
{
this.m_Script = SevenZipHelper.Decompress(this.m_Script);
}
if ((this.m_Script[0] == 60) || ((((this.m_Script[0] == 0xef) && (this.m_Script[1] == 0xbb)) && (this.m_Script[2] == 0xbf)) && (this.m_Script[3] == 60)))
{
preloadData.extension = ".xml";
}
}
else
{
if (stream.ReadByte() == 0x5d)
{
stream.Position += 4L;
preloadData.exportSize = stream.ReadInt32();
stream.Position -= 8L;
}
else
{
preloadData.exportSize = count;
}
stream.Position += count - 1;
}
stream.AlignStream(4);
this.m_PathName = stream.ReadAlignedString(stream.ReadInt32());
}
private void getFiles(EndianStream f_Stream, int offset)
{
int fileCount = f_Stream.ReadInt32();
for (int i = 0; i < fileCount; i++)
{
MemoryAssetsFile memFile = new MemoryAssetsFile();
memFile.fileName = f_Stream.ReadStringToNull();
int fileOffset = f_Stream.ReadInt32();
fileOffset += offset;
int fileSize = f_Stream.ReadInt32();
long nextFile = f_Stream.Position;
f_Stream.Position = fileOffset;
byte[] buffer = new byte[fileSize];
f_Stream.Read(buffer, 0, fileSize);
memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile);
f_Stream.Position = nextFile;
}
}
private void readBundle(EndianStream b_Stream)
{
var signature = b_Stream.ReadStringToNull();
if (signature == "UnityWeb" || signature == "UnityRaw" || signature == "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA")
{
format = b_Stream.ReadInt32();
versionPlayer = b_Stream.ReadStringToNull();
versionEngine = b_Stream.ReadStringToNull();
if (format < 6)
{
int bundleSize = b_Stream.ReadInt32();
}
else if (format == 6)
{
ReadFormat6(b_Stream, true);
return;
}
short dummy2 = b_Stream.ReadInt16();
int offset = b_Stream.ReadInt16();
int dummy3 = b_Stream.ReadInt32();
int lzmaChunks = b_Stream.ReadInt32();
int lzmaSize = 0;
long streamSize = 0;
for (int i = 0; i < lzmaChunks; i++)
{
lzmaSize = b_Stream.ReadInt32();
streamSize = b_Stream.ReadInt32();
}
b_Stream.Position = offset;
switch (signature)
{
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA": //.bytes
case "UnityWeb":
{
byte[] lzmaBuffer = new byte[lzmaSize];
b_Stream.Read(lzmaBuffer, 0, lzmaSize);
using (var lzmaStream = new EndianStream(SevenZipHelper.StreamDecompress(new MemoryStream(lzmaBuffer)), EndianType.BigEndian))
{
getFiles(lzmaStream, 0);
}
break;
}
case "UnityRaw":
{
getFiles(b_Stream, offset);
break;
}
}
}
else if (signature == "UnityFS")
{
format = b_Stream.ReadInt32();
versionPlayer = b_Stream.ReadStringToNull();
versionEngine = b_Stream.ReadStringToNull();
if (format == 6)
{
ReadFormat6(b_Stream);
}
}
}
private void ReadFormat6(EndianStream b_Stream, bool padding = false)
{
var bundleSize = b_Stream.ReadInt64();
int compressedSize = b_Stream.ReadInt32();
int uncompressedSize = b_Stream.ReadInt32();
int flag = b_Stream.ReadInt32();
if (padding)
{
b_Stream.ReadByte();
}
byte[] blocksInfoBytes;
if ((flag & 0x80) != 0)//at end of file
{
var position = b_Stream.Position;
b_Stream.Position = b_Stream.BaseStream.Length - compressedSize;
blocksInfoBytes = b_Stream.ReadBytes(compressedSize);
b_Stream.Position = position;
}
else
{
blocksInfoBytes = b_Stream.ReadBytes(compressedSize);
}
EndianStream blocksInfo;
switch (flag & 0x3F)
{
default: //None
{
blocksInfo = new EndianStream(new MemoryStream(blocksInfoBytes), EndianType.BigEndian);
break;
}
case 1: //LZMA
{
blocksInfo = new EndianStream(SevenZipHelper.StreamDecompress(new MemoryStream(blocksInfoBytes)), EndianType.BigEndian);
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
byte[] uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(blocksInfoBytes))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
blocksInfo = new EndianStream(new MemoryStream(uncompressedBytes), EndianType.BigEndian);
break;
}
//case 4:LZHAM?
}
using (blocksInfo)
{
blocksInfo.Position = 0x10;
int blockcount = blocksInfo.ReadInt32();
EndianStream assetsData;
var assetsDataStream = new MemoryStream();
for (int i = 0; i < blockcount; i++)
{
uncompressedSize = blocksInfo.ReadInt32();
compressedSize = blocksInfo.ReadInt32();
flag = blocksInfo.ReadInt16();
var compressedBytes = b_Stream.ReadBytes(compressedSize);
switch (flag & 0x3F)
{
default: //None
{
assetsDataStream.Write(compressedBytes, 0, compressedSize);
break;
}
case 1: //LZMA
{
var uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(compressedBytes))
{
var decoder = SevenZipHelper.StreamDecompress(mstream, uncompressedSize);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
case 2: //LZ4
case 3: //LZ4HC
{
var uncompressedBytes = new byte[uncompressedSize];
using (var mstream = new MemoryStream(compressedBytes))
{
var decoder = new Lz4DecoderStream(mstream);
decoder.Read(uncompressedBytes, 0, uncompressedSize);
decoder.Dispose();
}
assetsDataStream.Write(uncompressedBytes, 0, uncompressedSize);
break;
}
//case 4:LZHAM?
}
}
assetsData = new EndianStream(assetsDataStream, EndianType.BigEndian);
using (assetsData)
{
var entryinfo_count = blocksInfo.ReadInt32();
for (int i = 0; i < entryinfo_count; i++)
{
var memFile = new MemoryAssetsFile();
var entryinfo_offset = blocksInfo.ReadInt64();
var entryinfo_size = blocksInfo.ReadInt64();
var unknown = blocksInfo.ReadInt32();
memFile.fileName = blocksInfo.ReadStringToNull();
assetsData.Position = entryinfo_offset;
var buffer = new byte[entryinfo_size];
assetsData.Read(buffer, 0, (int)entryinfo_size);
memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile);
}
}
}
}
public Texture2D(AssetPreloadData preloadData, bool readSwitch)
{
AssetsFile sourceFile = preloadData.sourceFile;
EndianStream stream = preloadData.sourceFile.a_Stream;
stream.Position = preloadData.Offset;
if (sourceFile.platform == -2)
{
uint num = stream.ReadUInt32();
PPtr ptr = sourceFile.ReadPPtr();
PPtr ptr2 = sourceFile.ReadPPtr();
}
this.m_Name = stream.ReadAlignedString(stream.ReadInt32());
this.m_Width = stream.ReadInt32();
this.m_Height = stream.ReadInt32();
this.m_CompleteImageSize = stream.ReadInt32();
this.m_TextureFormat = stream.ReadInt32();
this.getExtension(preloadData, this.m_TextureFormat);
if (this.m_Name != "")
{
preloadData.Name = this.m_Name;
}
else
{
preloadData.Name = preloadData.TypeString + " #" + preloadData.uniqueID;
}
if ((sourceFile.version[0] < 5) || ((sourceFile.version[0] == 5) && (sourceFile.version[1] < 2)))
{
this.m_MipMap = stream.ReadBoolean();
}
else
{
this.dwFlags += 0x20000;
this.dwMipMapCount = stream.ReadInt32();
this.dwCaps += 0x400008;
}
this.m_IsReadable = stream.ReadBoolean();
this.m_ReadAllowed = stream.ReadBoolean();
stream.AlignStream(4);
this.m_ImageCount = stream.ReadInt32();
this.m_TextureDimension = stream.ReadInt32();
this.m_FilterMode = stream.ReadInt32();
this.m_Aniso = stream.ReadInt32();
this.m_MipBias = stream.ReadSingle();
this.m_WrapMode = stream.ReadInt32();
if (sourceFile.version[0] >= 3)
{
this.m_LightmapFormat = stream.ReadInt32();
if ((sourceFile.version[0] >= 4) || (sourceFile.version[1] >= 5))
{
this.m_ColorSpace = stream.ReadInt32();
}
}
this.image_data_size = stream.ReadInt32();
if (this.m_MipMap)
{
this.dwFlags += 0x20000;
this.dwMipMapCount = Convert.ToInt32((double)(Math.Log((double)Math.Max(this.m_Width, this.m_Height)) / Math.Log(2.0)));
this.dwCaps += 0x400008;
}
if (!readSwitch)
{
string[] textArray1 = new string[] { "Width: ", this.m_Width.ToString(), "\nHeight: ", this.m_Height.ToString(), "\nFormat: " };
preloadData.InfoText = string.Concat(textArray1);
preloadData.exportSize = this.image_data_size;
switch (this.m_TextureFormat)
{
case 1:
preloadData.InfoText = preloadData.InfoText + "Alpha8";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 2:
preloadData.InfoText = preloadData.InfoText + "ARGB 4.4.4.4";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 3:
preloadData.InfoText = preloadData.InfoText + "BGR 8.8.8";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 4:
preloadData.InfoText = preloadData.InfoText + "GRAB 8.8.8.8";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 5:
preloadData.InfoText = preloadData.InfoText + "BGRA 8.8.8.8";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 7:
preloadData.InfoText = preloadData.InfoText + "RGB 5.6.5";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 10:
preloadData.InfoText = preloadData.InfoText + "DXT1";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 12:
preloadData.InfoText = preloadData.InfoText + "DXT5";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 13:
preloadData.InfoText = preloadData.InfoText + "RGBA 4.4.4.4";
preloadData.extension = ".dds";
preloadData.exportSize += 0x80;
goto Label_0E7B;
case 0x1c:
preloadData.InfoText = preloadData.InfoText + "DXT1 Crunched";
preloadData.extension = ".crn";
goto Label_0E7B;
case 0x1d:
preloadData.InfoText = preloadData.InfoText + "DXT5 Crunched";
preloadData.extension = ".crn";
goto Label_0E7B;
case 30:
preloadData.InfoText = preloadData.InfoText + "PVRTC_RGB2";
preloadData.extension = ".pvr";
preloadData.exportSize += 0x34;
goto Label_0E7B;
case 0x1f:
preloadData.InfoText = preloadData.InfoText + "PVRTC_RGBA2";
preloadData.extension = ".pvr";
preloadData.exportSize += 0x34;
goto Label_0E7B;
case 0x20:
preloadData.InfoText = preloadData.InfoText + "PVRTC_RGB4";
preloadData.extension = ".pvr";
preloadData.exportSize += 0x34;
goto Label_0E7B;
case 0x21:
preloadData.InfoText = preloadData.InfoText + "PVRTC_RGBA4";
preloadData.extension = ".pvr";
preloadData.exportSize += 0x34;
goto Label_0E7B;
case 0x22:
preloadData.InfoText = preloadData.InfoText + "ETC_RGB4";
preloadData.extension = ".pvr";
preloadData.exportSize += 0x34;
goto Label_0E7B;
}
preloadData.InfoText = preloadData.InfoText + "unknown";
preloadData.extension = ".tex";
}
else
{
this.image_data = new byte[this.image_data_size];
stream.Read(this.image_data, 0, this.image_data_size);
switch (this.m_TextureFormat)
{
case 1:
this.dwFlags2 = 2;
this.dwRGBBitCount = 8;
this.dwRBitMask = 0;
this.dwGBitMask = 0;
this.dwBBitMask = 0;
this.dwABitMask = 0xff;
return;
case 2:
if (sourceFile.platform != 11)
{
if (sourceFile.platform == 13)
{
for (int j = 0; j < (this.image_data_size / 2); j++)
{
byte[] buffer1 = new byte[] { this.image_data[j * 2], this.image_data[(j * 2) + 1], this.image_data[j * 2], this.image_data[(j * 2) + 1] };
byte[] bytes = BitConverter.GetBytes((int)(BitConverter.ToInt32(buffer1, 0) >> 4));
this.image_data[j * 2] = bytes[0];
this.image_data[(j * 2) + 1] = bytes[1];
}
}
break;
}
for (int i = 0; i < (this.image_data_size / 2); i++)
{
byte num4 = this.image_data[i * 2];
this.image_data[i * 2] = this.image_data[(i * 2) + 1];
this.image_data[(i * 2) + 1] = num4;
}
break;
case 3:
for (int k = 0; k < (this.image_data_size / 3); k++)
{
byte num7 = this.image_data[k * 3];
this.image_data[k * 3] = this.image_data[(k * 3) + 2];
this.image_data[(k * 3) + 2] = num7;
}
this.dwFlags2 = 0x40;
this.dwRGBBitCount = 0x18;
this.dwRBitMask = 0xff0000;
this.dwGBitMask = 0xff00;
this.dwBBitMask = 0xff;
this.dwABitMask = 0;
return;
case 4:
for (int m = 0; m < (this.image_data_size / 4); m++)
{
byte num9 = this.image_data[m * 4];
this.image_data[m * 4] = this.image_data[(m * 4) + 2];
this.image_data[(m * 4) + 2] = num9;
}
this.dwFlags2 = 0x41;
this.dwRGBBitCount = 0x20;
this.dwRBitMask = 0xff0000;
this.dwGBitMask = 0xff00;
this.dwBBitMask = 0xff;
this.dwABitMask = -16777216;
return;
case 5:
for (int n = 0; n < (this.image_data_size / 4); n++)
{
byte num11 = this.image_data[n * 4];
byte num12 = this.image_data[(n * 4) + 1];
this.image_data[n * 4] = this.image_data[(n * 4) + 3];
this.image_data[(n * 4) + 1] = this.image_data[(n * 4) + 2];
this.image_data[(n * 4) + 2] = num12;
this.image_data[(n * 4) + 3] = num11;
}
this.dwFlags2 = 0x41;
this.dwRGBBitCount = 0x20;
this.dwRBitMask = 0xff0000;
this.dwGBitMask = 0xff00;
this.dwBBitMask = 0xff;
this.dwABitMask = -16777216;
return;
case 6:
case 8:
case 9:
case 11:
case 0x1c:
case 0x1d:
return;
case 7:
if (sourceFile.platform == 11)
{
for (int num13 = 0; num13 < (this.image_data_size / 2); num13++)
{
byte num14 = this.image_data[num13 * 2];
this.image_data[num13 * 2] = this.image_data[(num13 * 2) + 1];
this.image_data[(num13 * 2) + 1] = num14;
}
}
this.dwFlags2 = 0x40;
this.dwRGBBitCount = 0x10;
this.dwRBitMask = 0xf800;
this.dwGBitMask = 0x7e0;
this.dwBBitMask = 0x1f;
this.dwABitMask = 0;
return;
case 10:
if (sourceFile.platform == 11)
{
for (int num15 = 0; num15 < (this.image_data_size / 2); num15++)
{
byte num16 = this.image_data[num15 * 2];
this.image_data[num15 * 2] = this.image_data[(num15 * 2) + 1];
this.image_data[(num15 * 2) + 1] = num16;
}
}
if (this.m_MipMap)
{
this.dwPitchOrLinearSize = (this.m_Height * this.m_Width) / 2;
}
this.dwFlags2 = 4;
this.dwFourCC = 0x31545844;
this.dwRGBBitCount = 0;
this.dwRBitMask = 0;
this.dwGBitMask = 0;
this.dwBBitMask = 0;
this.dwABitMask = 0;
return;
case 12:
if (sourceFile.platform == 11)
{
for (int num17 = 0; num17 < (this.image_data_size / 2); num17++)
{
byte num18 = this.image_data[num17 * 2];
this.image_data[num17 * 2] = this.image_data[(num17 * 2) + 1];
this.image_data[(num17 * 2) + 1] = num18;
}
}
if (this.m_MipMap)
{
this.dwPitchOrLinearSize = (this.m_Height * this.m_Width) / 2;
}
this.dwFlags2 = 4;
this.dwFourCC = 0x35545844;
this.dwRGBBitCount = 0;
this.dwRBitMask = 0;
this.dwGBitMask = 0;
this.dwBBitMask = 0;
this.dwABitMask = 0;
return;
case 13:
for (int num19 = 0; num19 < (this.image_data_size / 2); num19++)
{
byte[] buffer3 = new byte[] { this.image_data[num19 * 2], this.image_data[(num19 * 2) + 1], this.image_data[num19 * 2], this.image_data[(num19 * 2) + 1] };
byte[] buffer2 = BitConverter.GetBytes((int)(BitConverter.ToInt32(buffer3, 0) >> 4));
this.image_data[num19 * 2] = buffer2[0];
this.image_data[(num19 * 2) + 1] = buffer2[1];
}
this.dwFlags2 = 0x41;
this.dwRGBBitCount = 0x10;
this.dwRBitMask = 0xf00;
this.dwGBitMask = 240;
this.dwBBitMask = 15;
this.dwABitMask = 0xf000;
return;
case 30:
this.pvrPixelFormat = 0L;
return;
case 0x1f:
this.pvrPixelFormat = 1L;
return;
case 0x20:
this.pvrPixelFormat = 2L;
return;
case 0x21:
this.pvrPixelFormat = 3L;
return;
case 0x22:
this.pvrPixelFormat = 0x16L;
return;
default:
return;
}
this.dwFlags2 = 0x41;
this.dwRGBBitCount = 0x10;
this.dwRBitMask = 0xf00;
this.dwGBitMask = 240;
this.dwBBitMask = 15;
this.dwABitMask = 0xf000;
return;
}
Label_0E7B:
switch (this.m_FilterMode)
{
case 0:
preloadData.InfoText = preloadData.InfoText + "\nFilter Mode: Point ";
break;
case 1:
preloadData.InfoText = preloadData.InfoText + "\nFilter Mode: Bilinear ";
break;
case 2:
preloadData.InfoText = preloadData.InfoText + "\nFilter Mode: Trilinear ";
break;
}
AssetPreloadData data = preloadData;
string[] textArray2 = new string[] { data.InfoText, "\nAnisotropic level: ", this.m_Aniso.ToString(), "\nMip map bias: ", this.m_MipBias.ToString() };
data.InfoText = string.Concat(textArray2);
switch (this.m_WrapMode)
{
case 0:
preloadData.InfoText = preloadData.InfoText + "\nWrap mode: Repeat";
break;
case 1:
preloadData.InfoText = preloadData.InfoText + "\nWrap mode: Clamp";
break;
}
}
public Mesh(AssetPreloadData MeshPD)
{
//Stream = new EndianStream(File.OpenRead(sourceFile.filePath), sourceFile.endianType);
//Stream.endian = sourceFile.endianType;
var version = MeshPD.sourceFile.version;
a_Stream = MeshPD.sourceFile.a_Stream;
a_Stream.Position = MeshPD.Offset;
bool m_Use16BitIndices = true; //3.5.0 and newer always uses 16bit indices
uint m_MeshCompression = 0;
if (MeshPD.sourceFile.platform == -2)
{
uint m_ObjectHideFlags = a_Stream.ReadUInt32();
PPtr m_PrefabParentObject = MeshPD.sourceFile.ReadPPtr();
PPtr m_PrefabInternal = MeshPD.sourceFile.ReadPPtr();
}
m_Name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
if (version[0] < 3 || (version[0] == 3 && version[1] < 5))
{
m_Use16BitIndices = a_Stream.ReadBoolean();
a_Stream.Position += 3;
}
#region Index Buffer for 2.5.1 and earlier
if (version[0] == 2 && version[1] <= 5)
{
int m_IndexBuffer_size = a_Stream.ReadInt32();
if (m_Use16BitIndices)
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 2];
for (int i = 0; i < m_IndexBuffer_size / 2; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt16(); }
a_Stream.AlignStream(4);
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt32(); }
}
}
#endregion
int m_SubMeshes_size = a_Stream.ReadInt32();
for (int s = 0; s < m_SubMeshes_size; s++)
{
m_SubMeshes.Add(new SubMesh());
m_SubMeshes[s].firstByte = a_Stream.ReadUInt32();
m_SubMeshes[s].indexCount = a_Stream.ReadUInt32(); //what is this in case of triangle strips?
m_SubMeshes[s].topology = a_Stream.ReadInt32(); //isTriStrip
if (version[0] < 4)
{
m_SubMeshes[s].triangleCount = a_Stream.ReadUInt32();
}
if (version[0] >= 3)
{
m_SubMeshes[s].firstVertex = a_Stream.ReadUInt32();
m_SubMeshes[s].vertexCount = a_Stream.ReadUInt32();
a_Stream.Position += 24; //Axis-Aligned Bounding Box
}
}
#region m_Shapes for 4.1.0 and later, excluding 4.1.0 alpha
if (version [0] >= 5 || (version[0] == 4 && (version[1] > 1 || (version[1] == 1 && MeshPD.sourceFile.buildType[0] != "a"))))
{
if (version[0] == 4 && version[1] <= 2) //4.1.0f4 - 4.2.2f1
{
int m_Shapes_size = a_Stream.ReadInt32();
if (m_Shapes_size > 0)
{
bool stop = true;
}
for (int s = 0; s < m_Shapes_size; s++) //untested
{
string shape_name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
a_Stream.Position += 36; //uint firstVertex, vertexCount; Vector3f aabbMinDelta, aabbMaxDelta; bool hasNormals, hasTangents
}
int m_ShapeVertices_size = a_Stream.ReadInt32();
a_Stream.Position += m_ShapeVertices_size * 40; //vertex positions, normals, tangents & uint index
}
else //4.3.0 and later
{
int m_ShapeVertices_size = a_Stream.ReadInt32();
a_Stream.Position += m_ShapeVertices_size * 40; //vertex positions, normals, tangents & uint index
int shapes_size = a_Stream.ReadInt32();
a_Stream.Position += shapes_size * 12; //uint firstVertex, vertexCount; bool hasNormals, hasTangents
int channels_size = a_Stream.ReadInt32();
for (int c = 0; c < channels_size; c++)
{
string channel_name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
a_Stream.Position += 12; //uint nameHash; int frameIndex, frameCount
}
int fullWeights_size = a_Stream.ReadInt32();
a_Stream.Position += fullWeights_size * 4; //floats
int m_BindPose_size = a_Stream.ReadInt32();
a_Stream.Position += m_BindPose_size * 16 * 4; //matrix 4x4
int m_BoneNameHashes_size = a_Stream.ReadInt32();
a_Stream.Position += m_BoneNameHashes_size * 4; //uints
uint m_RootBoneNameHash = a_Stream.ReadUInt32();
}
}
#endregion
#region Index Buffer for 2.6.0 and later
if (version[0] >= 3 || (version[0] == 2 && version[1] >= 6))
{
m_MeshCompression = a_Stream.ReadByte();
if (version[0] >= 4)
{
if (version[0] < 5) { uint m_StreamCompression = a_Stream.ReadByte(); }
bool m_IsReadable = a_Stream.ReadBoolean();
bool m_KeepVertices = a_Stream.ReadBoolean();
bool m_KeepIndices = a_Stream.ReadBoolean();
}
a_Stream.AlignStream(4);
int m_IndexBuffer_size = a_Stream.ReadInt32();
if (m_Use16BitIndices)
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 2];
for (int i = 0; i < m_IndexBuffer_size / 2; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt16(); }
a_Stream.AlignStream(4);
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt32(); }
//align??
}
}
#endregion
#region Vertex Buffer for 3.4.2 and earlier
if (version[0] < 3 || (version[0] == 3 && version[1] < 5))
{
m_VertexCount = a_Stream.ReadUInt32();
m_Vertices = new float[m_VertexCount * 3];
for (int v = 0; v < m_VertexCount * 3; v++) { m_Vertices[v] = a_Stream.ReadSingle(); }
int m_Skin_size = a_Stream.ReadInt32();
a_Stream.Position += m_Skin_size * 32; //4x float weights & 4x int boneIndices
int m_BindPose_size = a_Stream.ReadInt32();
a_Stream.Position += m_BindPose_size * 16 * 4; //matrix 4x4
int m_UV1_size = a_Stream.ReadInt32();
m_UV1 = new float[m_UV1_size * 2];
for (int v = 0; v < m_UV1_size * 2; v++) { m_UV1[v] = a_Stream.ReadSingle(); }
int m_UV2_size = a_Stream.ReadInt32();
m_UV2 = new float[m_UV2_size * 2];
for (int v = 0; v < m_UV2_size * 2; v++) { m_UV2[v] = a_Stream.ReadSingle(); }
if (version[0] == 2 && version[1] <= 5)
{
int m_TangentSpace_size = a_Stream.ReadInt32();
m_Normals = new float[m_TangentSpace_size * 3];
for (int v = 0; v < m_TangentSpace_size; v++)
{
m_Normals[v * 3] = a_Stream.ReadSingle();
m_Normals[v * 3 + 1] = a_Stream.ReadSingle();
m_Normals[v * 3 + 2] = a_Stream.ReadSingle();
a_Stream.Position += 16; //Vector3f tangent & float handedness
}
}
else //2.6.0 and later
{
int m_Tangents_size = a_Stream.ReadInt32();
a_Stream.Position += m_Tangents_size * 16; //Vector4f
int m_Normals_size = a_Stream.ReadInt32();
m_Normals = new float[m_Normals_size * 3];
for (int v = 0; v < m_Normals_size * 3; v++) { m_Normals[v] = a_Stream.ReadSingle(); }
}
}
#endregion
#region Vertex Buffer for 3.5.0 and later
else
{
#region read vertex stream
int m_Skin_size = a_Stream.ReadInt32();
a_Stream.Position += m_Skin_size * 32; //4x float weights & 4x int boneIndices
if (version[0] <= 3 || (version[0] == 4 && version[1] <= 2))
{
int m_BindPose_size = a_Stream.ReadInt32();
a_Stream.Position += m_BindPose_size * 16 * 4; //matrix 4x4
}
int m_CurrentChannels = a_Stream.ReadInt32();//defined as uint in Unity
m_VertexCount = a_Stream.ReadUInt32();
#region 3.5.0 - 3.5.7
if (version[0] < 4)
{
if (m_MeshCompression != 0 && version[2] == 0) //special case not just on platform 9
{
a_Stream.Position += 12;
}
else
{
m_Streams = new StreamInfo[4];
for (int s = 0; s < 4; s++)
{
m_Streams[s] = new StreamInfo();
m_Streams[s].channelMask = new BitArray(new int[1] { a_Stream.ReadInt32() });
m_Streams[s].offset = a_Stream.ReadInt32();
m_Streams[s].stride = a_Stream.ReadInt32();
m_Streams[s].align = a_Stream.ReadUInt32();
}
}
}
#endregion
#region 4.0.0 and later
else
{
int singleStreamStride = 0;//used tor unity 5
m_Channels = new ChannelInfo[a_Stream.ReadInt32()];
for (int c = 0; c < m_Channels.Length; c++)
{
m_Channels[c] = new ChannelInfo();
m_Channels[c].stream = a_Stream.ReadByte();
m_Channels[c].offset = a_Stream.ReadByte();
m_Channels[c].format = a_Stream.ReadByte();
m_Channels[c].dimension = a_Stream.ReadByte();
//calculate stride for Unity 5
singleStreamStride += m_Channels[c].dimension * (m_Channels[c].format % 2 == 0 ? 4 : 2);//fingers crossed!
}
if (version[0] < 5)
{
m_Streams = new StreamInfo[a_Stream.ReadInt32()];
for (int s = 0; s < m_Streams.Length; s++)
{
m_Streams[s] = new StreamInfo();
m_Streams[s].channelMask = new BitArray(new int[1] { a_Stream.ReadInt32() });
m_Streams[s].offset = a_Stream.ReadInt32();
m_Streams[s].stride = a_Stream.ReadByte();
m_Streams[s].dividerOp = a_Stream.ReadByte();
m_Streams[s].frequency = a_Stream.ReadUInt16();
}
}
else //it's just easier to create my own stream here
{
m_Streams = new StreamInfo[1];
m_Streams[0] = new StreamInfo();
m_Streams[0].channelMask = new BitArray(new int[1] { m_CurrentChannels });
m_Streams[0].offset = 0;
m_Streams[0].stride = singleStreamStride;
}
}
#endregion
//actual Vertex Buffer
byte[] m_DataSize = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_DataSize, 0, m_DataSize.Length);
#endregion
#region compute FvF
byte valueBufferSize = 0;
byte[] valueBuffer;
float[] dstArray;
if (m_Channels != null)
{
//it is better to loop channels instead of streams
//because channels are likely to be sorted by vertex property
#region 4.0.0 and later
foreach (var m_Channel in m_Channels)
{
if (m_Channel.dimension > 0)
{
var m_Stream = m_Streams[m_Channel.stream];
for (int b = 0; b < 6; b++)
{
if (m_Stream.channelMask.Get(b))
{
switch (m_Channel.format)
{
case 0: //32bit
valueBufferSize = 4;
break;
case 1: //16bit
valueBufferSize = 2;
break;
case 2: //8bit
valueBufferSize = 1;
m_Channel.dimension = 4;//these are actually groups of 4 components
break;
}
valueBuffer = new byte[valueBufferSize];
dstArray = new float[m_VertexCount * m_Channel.dimension];
for (int v = 0; v < m_VertexCount; v++)
{
for (int d = 0; d < m_Channel.dimension; d++)
{
int m_DataSizeOffset = m_Stream.offset + m_Channel.offset + m_Stream.stride * v + valueBufferSize * d;
Buffer.BlockCopy(m_DataSize, m_DataSizeOffset, valueBuffer, 0, valueBufferSize);
dstArray[v * m_Channel.dimension + d] = bytesToFloat(valueBuffer);
}
}
switch (b)
{
case 0://1
m_Vertices = dstArray;
break;
case 1://2
m_Normals = dstArray;
break;
case 2://4
m_Colors = dstArray;
break;
case 3://8
m_UV1 = dstArray;
break;
case 4://16
m_UV2 = dstArray;
break;
case 5://32
m_Tangents = dstArray;
break;
}
m_Stream.channelMask.Set(b, false); //is this needed?
valueBuffer = null;
dstArray = null;
break; //go to next channel
}
}
}
}
}
#endregion
#region 3.5.0 - 3.5.7
else if (m_Streams != null)
{
foreach (var m_Stream in m_Streams)
{
//a stream may have multiple vertex components but without channels there are no offsets, so I assume all vertex properties are in order
//Unity 3.5.x only uses floats, and that's probably why channels were introduced in Unity 4
ChannelInfo m_Channel = new ChannelInfo();//create my own channel so I can use the same methods
m_Channel.offset = 0;
for (int b = 0; b < 6; b++)
{
if (m_Stream.channelMask.Get(b))
{
switch (b)
{
case 0:
case 1:
valueBufferSize = 4;
m_Channel.dimension = 3;
break;
case 2:
valueBufferSize = 1;
m_Channel.dimension = 4;
break;
case 3:
case 4:
valueBufferSize = 4;
m_Channel.dimension = 2;
break;
case 5:
valueBufferSize = 4;
m_Channel.dimension = 4;
break;
}
valueBuffer = new byte[valueBufferSize];
dstArray = new float[m_VertexCount * m_Channel.dimension];
for (int v = 0; v < m_VertexCount; v++)
{
for (int d = 0; d < m_Channel.dimension; d++)
{
int m_DataSizeOffset = m_Stream.offset + m_Channel.offset + m_Stream.stride * v + valueBufferSize * d;
Buffer.BlockCopy(m_DataSize, m_DataSizeOffset, valueBuffer, 0, valueBufferSize);
dstArray[v * m_Channel.dimension + d] = bytesToFloat(valueBuffer);
}
}
switch (b)
{
case 0:
m_Vertices = dstArray;
break;
case 1:
m_Normals = dstArray;
break;
case 2:
m_Colors = dstArray;
break;
case 3:
m_UV1 = dstArray;
break;
case 4:
m_UV2 = dstArray;
break;
case 5:
m_Tangents = dstArray;
break;
}
m_Channel.offset += (byte)(m_Channel.dimension * valueBufferSize); //strides larger than 255 are unlikely
m_Stream.channelMask.Set(b, false); //is this needed?
valueBuffer = null;
dstArray = null;
}
}
}
}
#endregion
#endregion
}
#endregion
#region Compressed Mesh data for 2.6.0 and later - 160 bytes
if (version[0] >= 3 || (version[0] == 2 && version[1] >= 6))
{
//remember there can be combinations of packed and regular vertex properties
PackedBitVector m_Vertices_Packed = new PackedBitVector();
m_Vertices_Packed.m_NumItems = a_Stream.ReadUInt32();
m_Vertices_Packed.m_Range = a_Stream.ReadSingle();
m_Vertices_Packed.m_Start = a_Stream.ReadSingle();
m_Vertices_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Vertices_Packed.m_Data, 0, m_Vertices_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Vertices_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Vertices_Packed.m_NumItems > 0)
{
m_VertexCount = m_Vertices_Packed.m_NumItems / 3;
uint[] m_Vertices_Unpacked = UnpackBitVector(m_Vertices_Packed);
int bitmax = 0;//used to convert int value to float
for (int b = 0; b < m_Vertices_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Vertices = new float[m_Vertices_Packed.m_NumItems];
for (int v = 0; v < m_Vertices_Packed.m_NumItems; v++)
{
m_Vertices[v] = (float)m_Vertices_Unpacked[v] / bitmax * m_Vertices_Packed.m_Range + m_Vertices_Packed.m_Start;
}
}
PackedBitVector m_UV_Packed = new PackedBitVector(); //contains both channels
m_UV_Packed.m_NumItems = a_Stream.ReadUInt32();
m_UV_Packed.m_Range = a_Stream.ReadSingle();
m_UV_Packed.m_Start = a_Stream.ReadSingle();
m_UV_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_UV_Packed.m_Data, 0, m_UV_Packed.m_Data.Length);
m_UV_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_UV_Packed.m_NumItems > 0)
{
uint[] m_UV_Unpacked = UnpackBitVector(m_UV_Packed);
int bitmax = 0;
for (int b = 0; b < m_Vertices_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_UV1 = new float[m_VertexCount * 2];
for (int v = 0; v < m_VertexCount * 2; v++)
{
m_UV1[v] = (float)m_UV_Unpacked[v] / bitmax * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
if (m_UV_Packed.m_NumItems == m_VertexCount * 4)
{
m_UV2 = new float[m_VertexCount * 2];
for (uint v = 0; v < m_VertexCount * 2; v++)
{
m_UV2[v] = (float)m_UV_Unpacked[v + m_VertexCount * 2] / bitmax * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
}
}
if (version[0] < 5)
{
PackedBitVector m_BindPoses_Packed = new PackedBitVector();
m_BindPoses_Packed.m_NumItems = a_Stream.ReadUInt32();
m_BindPoses_Packed.m_Range = a_Stream.ReadSingle();
m_BindPoses_Packed.m_Start = a_Stream.ReadSingle();
m_BindPoses_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_BindPoses_Packed.m_Data, 0, m_BindPoses_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_BindPoses_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
}
PackedBitVector m_Normals_Packed = new PackedBitVector();
m_Normals_Packed.m_NumItems = a_Stream.ReadUInt32();
m_Normals_Packed.m_Range = a_Stream.ReadSingle();
m_Normals_Packed.m_Start = a_Stream.ReadSingle();
m_Normals_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Normals_Packed.m_Data, 0, m_Normals_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Normals_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_Tangents_Packed = new PackedBitVector();
m_Tangents_Packed.m_NumItems = a_Stream.ReadUInt32();
m_Tangents_Packed.m_Range = a_Stream.ReadSingle();
m_Tangents_Packed.m_Start = a_Stream.ReadSingle();
m_Tangents_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Tangents_Packed.m_Data, 0, m_Tangents_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Tangents_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_Weights_Packed = new PackedBitVector();
m_Weights_Packed.m_NumItems = a_Stream.ReadUInt32();
m_Weights_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Weights_Packed.m_Data, 0, m_Weights_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Weights_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_NormalSigns_packed = new PackedBitVector();
m_NormalSigns_packed.m_NumItems = a_Stream.ReadUInt32();
m_NormalSigns_packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_NormalSigns_packed.m_Data, 0, m_NormalSigns_packed.m_Data.Length);
a_Stream.AlignStream(4);
m_NormalSigns_packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Normals_Packed.m_NumItems > 0)
{
uint[] m_Normals_Unpacked = UnpackBitVector(m_Normals_Packed);
uint[] m_NormalSigns = UnpackBitVector(m_NormalSigns_packed);
int bitmax = 0;
for (int b = 0; b < m_Normals_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Normals = new float[m_Normals_Packed.m_NumItems / 2 * 3];
for (int v = 0; v < m_Normals_Packed.m_NumItems / 2; v++)
{
m_Normals[v * 3] = (float)((double)m_Normals_Unpacked[v * 2] / bitmax) * m_Normals_Packed.m_Range + m_Normals_Packed.m_Start;
m_Normals[v * 3 + 1] = (float)((double)m_Normals_Unpacked[v * 2 + 1] / bitmax) * m_Normals_Packed.m_Range + m_Normals_Packed.m_Start;
m_Normals[v * 3 + 2] = (float)Math.Sqrt(1 - m_Normals[v * 3] * m_Normals[v * 3] - m_Normals[v * 3 + 1] * m_Normals[v * 3 + 1]);
if (m_NormalSigns[v] == 0) { m_Normals[v * 3 + 2] *= -1; }
}
}
PackedBitVector m_TangentSigns = new PackedBitVector();
m_TangentSigns.m_NumItems = a_Stream.ReadUInt32();
m_TangentSigns.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_TangentSigns.m_Data, 0, m_TangentSigns.m_Data.Length);
a_Stream.AlignStream(4);
m_TangentSigns.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (version[0] >= 5)
{
PackedBitVector m_FloatColors = new PackedBitVector();
m_FloatColors.m_NumItems = a_Stream.ReadUInt32();
m_FloatColors.m_Range = a_Stream.ReadSingle();
m_FloatColors.m_Start = a_Stream.ReadSingle();
m_FloatColors.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_FloatColors.m_Data, 0, m_FloatColors.m_Data.Length);
a_Stream.AlignStream(4);
m_FloatColors.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_FloatColors.m_NumItems > 0)
{
uint[] m_FloatColors_Unpacked = UnpackBitVector(m_FloatColors);
int bitmax = 0;
for (int b = 0; b < m_Vertices_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Colors = new float[m_FloatColors.m_NumItems];
for (int v = 0; v < m_FloatColors.m_NumItems; v++)
{
m_Colors[v] = (float)m_FloatColors_Unpacked[v] / bitmax * m_FloatColors.m_Range + m_FloatColors.m_Start;
}
}
}
PackedBitVector m_BoneIndices = new PackedBitVector();
m_BoneIndices.m_NumItems = a_Stream.ReadUInt32();
m_BoneIndices.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_BoneIndices.m_Data, 0, m_BoneIndices.m_Data.Length);
a_Stream.AlignStream(4);
m_BoneIndices.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_Triangles = new PackedBitVector();
m_Triangles.m_NumItems = a_Stream.ReadUInt32();
m_Triangles.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Triangles.m_Data, 0, m_Triangles.m_Data.Length);
a_Stream.AlignStream(4);
m_Triangles.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Triangles.m_NumItems > 0) { m_IndexBuffer = UnpackBitVector(m_Triangles); }
}
#endregion
#region Colors & Collision triangles for 3.4.2 and earlier
if (version[0] <= 2 || (version[0] == 3 && version[1] <= 4)) //
{
a_Stream.Position += 24; //Axis-Aligned Bounding Box
int m_Colors_size = a_Stream.ReadInt32();
m_Colors = new float[m_Colors_size * 4];
for (int v = 0; v < m_Colors_size * 4; v++) { m_Colors[v] = (float)(a_Stream.ReadByte()) / 0xFF; }
int m_CollisionTriangles_size = a_Stream.ReadInt32();
a_Stream.Position += m_CollisionTriangles_size * 4; //UInt32 indices
int m_CollisionVertexCount = a_Stream.ReadInt32();
}
#endregion
#region Compressed colors & Local AABB for 3.5.0 to 4.x.x
else //vertex colors are either in streams or packed bits
{
if (version[0] < 5)
{
PackedBitVector m_Colors_Packed = new PackedBitVector();
m_Colors_Packed.m_NumItems = a_Stream.ReadUInt32();
m_Colors_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Colors_Packed.m_Data, 0, m_Colors_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Colors_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Colors_Packed.m_NumItems > 0)
{
if (m_Colors_Packed.m_BitSize == 32)
{
//4 x 8bit color channels
m_Colors = new float[m_Colors_Packed.m_Data.Length];
for (int v = 0; v < m_Colors_Packed.m_Data.Length; v++)
{
m_Colors[v] = (float)m_Colors_Packed.m_Data[v] / 0xFF;
}
}
else //not tested
{
uint[] m_Colors_Unpacked = UnpackBitVector(m_Colors_Packed);
int bitmax = 0;//used to convert int value to float
for (int b = 0; b < m_Colors_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Colors = new float[m_Colors_Packed.m_NumItems];
for (int v = 0; v < m_Colors_Packed.m_NumItems; v++)
{
m_Colors[v] = (float)m_Colors_Unpacked[v] / bitmax;
}
}
}
}
a_Stream.Position += 24; //Axis-Aligned Bounding Box
}
#endregion
int m_MeshUsageFlags = a_Stream.ReadInt32();
if (version[0] >= 5)
{
//int m_BakedConvexCollisionMesh = a_Stream.ReadInt32();
//a_Stream.Position += m_BakedConvexCollisionMesh;
//int m_BakedTriangleCollisionMesh = a_Stream.ReadInt32();
//a_Stream.Position += m_BakedConvexCollisionMesh;
}
#region Build face indices
for (int s = 0; s < m_SubMeshes_size; s++)
{
uint firstIndex = m_SubMeshes[s].firstByte / 2;
if (!m_Use16BitIndices) { firstIndex /= 2; }
if (m_SubMeshes[s].topology == 0)
{
for (int i = 0; i < m_SubMeshes[s].indexCount / 3; i++)
{
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3]);
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3 + 1]);
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3 + 2]);
m_materialIDs.Add(s);
}
}
else
{
for (int i = 0; i < m_SubMeshes[s].indexCount - 2; i++)
{
uint fa = m_IndexBuffer[firstIndex + i];
uint fb = m_IndexBuffer[firstIndex + i + 1];
uint fc = m_IndexBuffer[firstIndex + i + 2];
if ((fa!=fb) && (fa!=fc) && (fc!=fb))
{
m_Indices.Add(fa);
if ((i % 2) == 0)
{
m_Indices.Add(fb);
m_Indices.Add(fc);
}
else
{
m_Indices.Add(fc);
m_Indices.Add(fb);
}
m_materialIDs.Add(s);
}
}
}
}
#endregion
}
public BundleFile(string fileName)
{
if (Path.GetExtension(fileName) == ".lz4")
{
byte[] filebuffer;
using (BinaryReader lz4Stream = new BinaryReader(File.OpenRead(fileName)))
{
int version = lz4Stream.ReadInt32();
int uncompressedSize = lz4Stream.ReadInt32();
int compressedSize = lz4Stream.ReadInt32();
int something = lz4Stream.ReadInt32(); //1
byte[] lz4buffer = new byte[compressedSize];
lz4Stream.Read(lz4buffer, 0, compressedSize);
using (var inputStream = new MemoryStream(lz4buffer))
{
var decoder = new Lz4DecoderStream(inputStream);
filebuffer = new byte[uncompressedSize]; //is this ok?
for (;;)
{
int nRead = decoder.Read(filebuffer, 0, uncompressedSize);
if (nRead == 0)
break;
}
}
}
Stream = new EndianStream(new MemoryStream(filebuffer), EndianType.BigEndian);
}
else { Stream = new EndianStream(File.OpenRead(fileName), EndianType.BigEndian); }
long magicHeader = Stream.ReadInt64();
if (magicHeader == -361700864190383366 || magicHeader == 6155973689634940258 || magicHeader == 6155973689634611575)
{
int dummy = Stream.ReadInt32();
ver1 = Stream.ReadByte();
ver2 = Stream.ReadStringToNull();
ver3 = Stream.ReadStringToNull();
int lzmaSize = 0;
int fileSize = Stream.ReadInt32();
short dummy2 = Stream.ReadInt16();
int offset = Stream.ReadInt16();
int dummy3 = Stream.ReadInt32();
int lzmaChunks = Stream.ReadInt32();
for (int i = 0; i < lzmaChunks; i++)
{
lzmaSize = Stream.ReadInt32();
fileSize = Stream.ReadInt32();
}
Stream.Position = offset;
switch (magicHeader)
{
case -361700864190383366: //.bytes
case 6155973689634940258: //UnityWeb
{
byte[] lzmaBuffer = new byte[lzmaSize];
Stream.Read(lzmaBuffer, 0, lzmaSize);
Stream.Close();
Stream.Dispose();
Stream = new EndianStream(SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(new MemoryStream(lzmaBuffer)), EndianType.BigEndian);
offset = 0;
break;
}
case 6155973689634611575: //UnityRaw
{
break;
}
}
int fileCount = Stream.ReadInt32();
for (int i = 0; i < fileCount; i++)
{
MemoryAssetsFile memFile = new MemoryAssetsFile();
memFile.fileName = Stream.ReadStringToNull();
int fileOffset = Stream.ReadInt32();
fileOffset += offset;
fileSize = Stream.ReadInt32();
long nextFile = Stream.Position;
Stream.Position = fileOffset;
byte[] buffer = new byte[fileSize];
Stream.Read(buffer, 0, fileSize);
memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile);
Stream.Position = nextFile;
}
}
Stream.Close();
}
public Mesh(AssetPreloadData MeshPD)
{
//Stream = new EndianStream(File.OpenRead(sourceFile.filePath), sourceFile.endianType);
//Stream.endian = sourceFile.endianType;
var version = MeshPD.sourceFile.version;
a_Stream = MeshPD.sourceFile.a_Stream;
a_Stream.Position = MeshPD.Offset;
bool m_Use16BitIndices = true; //3.5.0 and newer always uses 16bit indices
uint m_MeshCompression = 0;
if (MeshPD.sourceFile.platform == -2)
{
uint m_ObjectHideFlags = a_Stream.ReadUInt32();
PPtr m_PrefabParentObject = MeshPD.sourceFile.ReadPPtr();
PPtr m_PrefabInternal = MeshPD.sourceFile.ReadPPtr();
}
m_Name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
if (version[0] < 3 || (version[0] == 3 && version[1] < 5))
{
m_Use16BitIndices = a_Stream.ReadBoolean();
a_Stream.Position += 3;
}
#region Index Buffer for 2.5.1 and earlier
if (version[0] == 2 && version[1] <= 5)
{
int m_IndexBuffer_size = a_Stream.ReadInt32();
if (m_Use16BitIndices)
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 2];
for (int i = 0; i < m_IndexBuffer_size / 2; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt16(); }
a_Stream.AlignStream(4);
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt32(); }
}
}
#endregion
#region subMeshes
int m_SubMeshes_size = a_Stream.ReadInt32();
for (int s = 0; s < m_SubMeshes_size; s++)
{
m_SubMeshes.Add(new SubMesh());
m_SubMeshes[s].firstByte = a_Stream.ReadUInt32();
m_SubMeshes[s].indexCount = a_Stream.ReadUInt32(); //what is this in case of triangle strips?
m_SubMeshes[s].topology = a_Stream.ReadInt32(); //isTriStrip
if (version[0] < 4)
{
m_SubMeshes[s].triangleCount = a_Stream.ReadUInt32();
}
if (version[0] >= 3)
{
m_SubMeshes[s].firstVertex = a_Stream.ReadUInt32();
m_SubMeshes[s].vertexCount = a_Stream.ReadUInt32();
a_Stream.Position += 24; //Axis-Aligned Bounding Box
}
}
#endregion
#region BlendShapeData for 4.1.0 to 4.2.x, excluding 4.1.0 alpha
if (version[0] == 4 && ((version[1] == 1 && MeshPD.sourceFile.buildType[0] != "a") ||
(version[1] > 1 && version[1] <= 2)))
{
int m_Shapes_size = a_Stream.ReadInt32();
if (m_Shapes_size > 0)
{
bool stop = true;
}
for (int s = 0; s < m_Shapes_size; s++) //untested
{
string shape_name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
a_Stream.Position += 36; //uint firstVertex, vertexCount; Vector3f aabbMinDelta, aabbMaxDelta; bool hasNormals, hasTangents
}
int m_ShapeVertices_size = a_Stream.ReadInt32();
a_Stream.Position += m_ShapeVertices_size * 40; //vertex positions, normals, tangents & uint index
}
#endregion
#region BlendShapeData and BindPose for 4.3.0 and later
else if (version[0] >= 5 || (version[0] == 4 && version[1] >= 3))
{
int m_ShapeVertices_size = a_Stream.ReadInt32();
if (m_ShapeVertices_size > 0)
{
bool stop = true;
}
a_Stream.Position += m_ShapeVertices_size * 40; //vertex positions, normals, tangents & uint index
int shapes_size = a_Stream.ReadInt32();
a_Stream.Position += shapes_size * 12; //uint firstVertex, vertexCount; bool hasNormals, hasTangents
int channels_size = a_Stream.ReadInt32();
for (int c = 0; c < channels_size; c++)
{
string channel_name = a_Stream.ReadAlignedString(a_Stream.ReadInt32());
a_Stream.Position += 12; //uint nameHash; int frameIndex, frameCount
}
int fullWeights_size = a_Stream.ReadInt32();
a_Stream.Position += fullWeights_size * 4; //floats
m_BindPose = new float[a_Stream.ReadInt32()][,];
for (int i = 0; i < m_BindPose.Length; i++)
{
m_BindPose[i] = new float[4,4] {
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() } };
}
int m_BoneNameHashes_size = a_Stream.ReadInt32();
a_Stream.Position += m_BoneNameHashes_size * 4; //uints
uint m_RootBoneNameHash = a_Stream.ReadUInt32();
}
#endregion
#region Index Buffer for 2.6.0 and later
if (version[0] >= 3 || (version[0] == 2 && version[1] >= 6))
{
m_MeshCompression = a_Stream.ReadByte();
if (version[0] >= 4)
{
if (version[0] < 5) { uint m_StreamCompression = a_Stream.ReadByte(); }
bool m_IsReadable = a_Stream.ReadBoolean();
bool m_KeepVertices = a_Stream.ReadBoolean();
bool m_KeepIndices = a_Stream.ReadBoolean();
}
a_Stream.AlignStream(4);
int m_IndexBuffer_size = a_Stream.ReadInt32();
if (m_Use16BitIndices)
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 2];
for (int i = 0; i < m_IndexBuffer_size / 2; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt16(); }
a_Stream.AlignStream(4);
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++) { m_IndexBuffer[i] = a_Stream.ReadUInt32(); }
a_Stream.AlignStream(4);//untested
}
}
#endregion
#region Vertex Buffer for 3.4.2 and earlier
if (version[0] < 3 || (version[0] == 3 && version[1] < 5))
{
m_VertexCount = a_Stream.ReadInt32();
m_Vertices = new float[m_VertexCount * 3];
for (int v = 0; v < m_VertexCount * 3; v++) { m_Vertices[v] = a_Stream.ReadSingle(); }
m_Skin = new List<BoneInfluence>[a_Stream.ReadInt32()];
//m_Skin = new Dictionary<int, float>[a_Stream.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new List<BoneInfluence>();
for (int i = 0; i < 4; i++) { m_Skin[s].Add(new BoneInfluence() { weight = a_Stream.ReadSingle() }); }
for (int i = 0; i < 4; i++) { m_Skin[s][i].boneIndex = a_Stream.ReadInt32(); }
/*m_Skin[s] = new Dictionary<int, float>();
float[] weights = new float[4] { a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() };
for (int i = 0; i < 4; i++)
{
int boneIndex = a_Stream.ReadInt32();
m_Skin[s][boneIndex] = weights[i];
}*/
}
m_BindPose = new float[a_Stream.ReadInt32()][,];
for (int i = 0; i < m_BindPose.Length; i++)
{
m_BindPose[i] = new float[4, 4] {
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() } };
}
int m_UV1_size = a_Stream.ReadInt32();
m_UV1 = new float[m_UV1_size * 2];
for (int v = 0; v < m_UV1_size * 2; v++) { m_UV1[v] = a_Stream.ReadSingle(); }
int m_UV2_size = a_Stream.ReadInt32();
m_UV2 = new float[m_UV2_size * 2];
for (int v = 0; v < m_UV2_size * 2; v++) { m_UV2[v] = a_Stream.ReadSingle(); }
if (version[0] == 2 && version[1] <= 5)
{
int m_TangentSpace_size = a_Stream.ReadInt32();
m_Normals = new float[m_TangentSpace_size * 3];
for (int v = 0; v < m_TangentSpace_size; v++)
{
m_Normals[v * 3] = a_Stream.ReadSingle();
m_Normals[v * 3 + 1] = a_Stream.ReadSingle();
m_Normals[v * 3 + 2] = a_Stream.ReadSingle();
a_Stream.Position += 16; //Vector3f tangent & float handedness
}
}
else //2.6.0 and later
{
int m_Tangents_size = a_Stream.ReadInt32();
a_Stream.Position += m_Tangents_size * 16; //Vector4f
int m_Normals_size = a_Stream.ReadInt32();
m_Normals = new float[m_Normals_size * 3];
for (int v = 0; v < m_Normals_size * 3; v++) { m_Normals[v] = a_Stream.ReadSingle(); }
}
}
#endregion
#region Vertex Buffer for 3.5.0 and later
else
{
#region read vertex stream
m_Skin = new List<BoneInfluence>[a_Stream.ReadInt32()];
//m_Skin = new Dictionary<int, float>[a_Stream.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new List<BoneInfluence>();
for (int i = 0; i < 4; i++) { m_Skin[s].Add(new BoneInfluence() { weight = a_Stream.ReadSingle() }); }
for (int i = 0; i < 4; i++) { m_Skin[s][i].boneIndex = a_Stream.ReadInt32(); }
/*m_Skin[s] = new Dictionary<int, float>();
float[] weights = new float[4] { a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() };
for (int i = 0; i < 4; i++)
{
int boneIndex = a_Stream.ReadInt32();
m_Skin[s][boneIndex] = weights[i];
}*/
}
if (version[0] == 3 || (version[0] == 4 && version[1] <= 2))
{
m_BindPose = new float[a_Stream.ReadInt32()][,];
for (int i = 0; i < m_BindPose.Length; i++)
{
m_BindPose[i] = new float[4, 4] {
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() },
{ a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle(), a_Stream.ReadSingle() } };
}
}
BitArray m_CurrentChannels = new BitArray(new int[1] { a_Stream.ReadInt32() });
m_VertexCount = a_Stream.ReadInt32();
//int singleStreamStride = 0;//used tor unity 5
int streamCount = 0;
#region streams for 3.5.0 - 3.5.7
if (version[0] < 4)
{
if (m_MeshCompression != 0 && version[2] == 0) //special case not just on platform 9
{
a_Stream.Position += 12;
}
else
{
m_Streams = new StreamInfo[4];
for (int s = 0; s < 4; s++)
{
m_Streams[s] = new StreamInfo();
m_Streams[s].channelMask = new BitArray(new int[1] { a_Stream.ReadInt32() });
m_Streams[s].offset = a_Stream.ReadInt32();
m_Streams[s].stride = a_Stream.ReadInt32();
m_Streams[s].align = a_Stream.ReadUInt32();
}
}
}
#endregion
#region channels and streams for 4.0.0 and later
else
{
m_Channels = new ChannelInfo[a_Stream.ReadInt32()];
for (int c = 0; c < m_Channels.Length; c++)
{
m_Channels[c] = new ChannelInfo();
m_Channels[c].stream = a_Stream.ReadByte();
m_Channels[c].offset = a_Stream.ReadByte();
m_Channels[c].format = a_Stream.ReadByte();
m_Channels[c].dimension = a_Stream.ReadByte();
//calculate stride for Unity 5
//singleStreamStride += m_Channels[c].dimension * (4 / (int)Math.Pow(2, m_Channels[c].format));
if (m_Channels[c].stream >= streamCount) { streamCount = m_Channels[c].stream + 1; }
}
if (version[0] < 5)
{
m_Streams = new StreamInfo[a_Stream.ReadInt32()];
for (int s = 0; s < m_Streams.Length; s++)
{
m_Streams[s] = new StreamInfo();
m_Streams[s].channelMask = new BitArray(new int[1] { a_Stream.ReadInt32() });
m_Streams[s].offset = a_Stream.ReadInt32();
m_Streams[s].stride = a_Stream.ReadByte();
m_Streams[s].dividerOp = a_Stream.ReadByte();
m_Streams[s].frequency = a_Stream.ReadUInt16();
}
}
}
#endregion
//actual Vertex Buffer
byte[] m_DataSize = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_DataSize, 0, m_DataSize.Length);
if (version[0] >= 5) //create streams
{
m_Streams = new StreamInfo[streamCount];
for (int s = 0; s < streamCount; s++)
{
m_Streams[s] = new StreamInfo();
m_Streams[s].channelMask = new BitArray(new int[1] { 0 });
m_Streams[s].offset = 0;
m_Streams[s].stride = 0;
foreach (var m_Channel in m_Channels)
{
if (m_Channel.stream == s) { m_Streams[s].stride += m_Channel.dimension * (4 / (int)Math.Pow(2, m_Channel.format)); }
}
if (s > 0)
{
m_Streams[s].offset = m_Streams[s - 1].offset + m_Streams[s - 1].stride * m_VertexCount;
//sometimes there are 8 bytes between streams
//this is NOT an alignment, even if sometimes it may seem so
if (streamCount == 2) { m_Streams[s].offset = m_DataSize.Length - m_Streams[s].stride * m_VertexCount; }
else
{
m_VertexCount = 0;
return;
}
/*var absoluteOffset = a_Stream.Position + 4 + m_Streams[s].offset;
if ((absoluteOffset % m_Streams[s].stride) != 0)
{
m_Streams[s].offset += m_Streams[s].stride - (int)(absoluteOffset % m_Streams[s].stride);
}*/
}
}
}
#endregion
#region compute FvF
int componentByteSize = 0;
byte[] componentBytes;
float[] componentsArray;
#region 4.0.0 and later
if (m_Channels != null)
{
//it is better to loop channels instead of streams
//because channels are likely to be sorted by vertex property
foreach (var m_Channel in m_Channels)
{
if (m_Channel.dimension > 0)
{
var m_Stream = m_Streams[m_Channel.stream];
for (int b = 0; b < 8; b++)
{
//in the future, try to use only m_CurrentChannels
if ((version[0] < 5 && m_Stream.channelMask.Get(b)) || (version[0] >= 5 && m_CurrentChannels.Get(b)))
{
// in Unity 4.x the colors channel has 1 dimension, as in 1 color with 4 components
if (b == 2 && m_Channel.format == 2) { m_Channel.dimension = 4; }
componentByteSize = 4 / (int)Math.Pow(2, m_Channel.format);
/*switch (m_Channel.format)
{
case 0: //32bit
valueBufferSize = 4;
break;
case 1: //16bit
valueBufferSize = 2;
break;
case 2: //8bit
valueBufferSize = 1;
m_Channel.dimension = 4;//in older versions this is 1, as in 1 color with 4 components
break;
}*/
componentBytes = new byte[componentByteSize];
componentsArray = new float[m_VertexCount * m_Channel.dimension];
for (int v = 0; v < m_VertexCount; v++)
{
int vertexOffset = m_Stream.offset + m_Channel.offset + m_Stream.stride * v;
for (int d = 0; d < m_Channel.dimension; d++)
{
int componentOffset = vertexOffset + componentByteSize * d;
Buffer.BlockCopy(m_DataSize, componentOffset, componentBytes, 0, componentByteSize);
componentsArray[v * m_Channel.dimension + d] = bytesToFloat(componentBytes);
}
}
switch (b)
{
case 0: m_Vertices = componentsArray; break;
case 1: m_Normals = componentsArray; break;
case 2: m_Colors = componentsArray; break;
case 3: m_UV1 = componentsArray; break;
case 4: m_UV2 = componentsArray; break;
case 5:
if (version[0] == 5) { m_UV3 = componentsArray; }
else { m_Tangents = componentsArray; }
break;
case 6: m_UV4 = componentsArray; break;
case 7: m_Tangents = componentsArray; break;
}
m_Stream.channelMask.Set(b, false);
m_CurrentChannels.Set(b, false);
componentBytes = null;
componentsArray = null;
break; //go to next channel
}
}
}
}
}
#endregion
#region 3.5.0 - 3.5.7
else if (m_Streams != null)
{
foreach (var m_Stream in m_Streams)
{
//a stream may have multiple vertex components but without channels there are no offsets, so I assume all vertex properties are in order
//Unity 3.5.x only uses floats, and that's probably why channels were introduced in Unity 4
ChannelInfo m_Channel = new ChannelInfo();//create my own channel so I can use the same methods
m_Channel.offset = 0;
for (int b = 0; b < 6; b++)
{
if (m_Stream.channelMask.Get(b))
{
switch (b)
{
case 0:
case 1:
componentByteSize = 4;
m_Channel.dimension = 3;
break;
case 2:
componentByteSize = 1;
m_Channel.dimension = 4;
break;
case 3:
case 4:
componentByteSize = 4;
m_Channel.dimension = 2;
break;
case 5:
componentByteSize = 4;
m_Channel.dimension = 4;
break;
}
componentBytes = new byte[componentByteSize];
componentsArray = new float[m_VertexCount * m_Channel.dimension];
for (int v = 0; v < m_VertexCount; v++)
{
int vertexOffset = m_Stream.offset + m_Channel.offset + m_Stream.stride * v;
for (int d = 0; d < m_Channel.dimension; d++)
{
int m_DataSizeOffset = vertexOffset + componentByteSize * d;
Buffer.BlockCopy(m_DataSize, m_DataSizeOffset, componentBytes, 0, componentByteSize);
componentsArray[v * m_Channel.dimension + d] = bytesToFloat(componentBytes);
}
}
switch (b)
{
case 0: m_Vertices = componentsArray; break;
case 1: m_Normals = componentsArray; break;
case 2: m_Colors = componentsArray; break;
case 3: m_UV1 = componentsArray; break;
case 4: m_UV2 = componentsArray; break;
case 5: m_Tangents = componentsArray; break;
}
m_Channel.offset += (byte)(m_Channel.dimension * componentByteSize); //safe to cast as byte because strides larger than 255 are unlikely
m_Stream.channelMask.Set(b, false);
componentBytes = null;
componentsArray = null;
}
}
}
}
#endregion
#endregion
}
#endregion
#region Compressed Mesh data for 2.6.0 and later - 160 bytes
if (version[0] >= 3 || (version[0] == 2 && version[1] >= 6))
{
//remember there can be combinations of packed and regular vertex properties
#region m_Vertices
PackedBitVector m_Vertices_Packed = new PackedBitVector();
m_Vertices_Packed.m_NumItems = a_Stream.ReadInt32();
m_Vertices_Packed.m_Range = a_Stream.ReadSingle();
m_Vertices_Packed.m_Start = a_Stream.ReadSingle();
m_Vertices_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Vertices_Packed.m_Data, 0, m_Vertices_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Vertices_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Vertices_Packed.m_NumItems > 0)
{
m_VertexCount = m_Vertices_Packed.m_NumItems / 3;
uint[] m_Vertices_Unpacked = UnpackBitVector(m_Vertices_Packed);
int bitmax = 0;//used to convert int value to float
for (int b = 0; b < m_Vertices_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Vertices = new float[m_Vertices_Packed.m_NumItems];
for (int v = 0; v < m_Vertices_Packed.m_NumItems; v++)
{
m_Vertices[v] = (float)((double)m_Vertices_Unpacked[v] / bitmax) * m_Vertices_Packed.m_Range + m_Vertices_Packed.m_Start;
}
}
#endregion
#region m_UV
PackedBitVector m_UV_Packed = new PackedBitVector(); //contains all channels
m_UV_Packed.m_NumItems = a_Stream.ReadInt32();
m_UV_Packed.m_Range = a_Stream.ReadSingle();
m_UV_Packed.m_Start = a_Stream.ReadSingle();
m_UV_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_UV_Packed.m_Data, 0, m_UV_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_UV_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_UV_Packed.m_NumItems > 0 && (bool)Properties.Settings.Default["exportUVs"])
{
uint[] m_UV_Unpacked = UnpackBitVector(m_UV_Packed);
int bitmax = 0;
for (int b = 0; b < m_UV_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_UV1 = new float[m_VertexCount * 2];
for (int v = 0; v < m_VertexCount * 2; v++)
{
m_UV1[v] = (float)((double)m_UV_Unpacked[v] / bitmax) * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
if (m_UV_Packed.m_NumItems >= m_VertexCount * 4)
{
m_UV2 = new float[m_VertexCount * 2];
for (uint v = 0; v < m_VertexCount * 2; v++)
{
m_UV2[v] = (float)((double)m_UV_Unpacked[v + m_VertexCount * 2] / bitmax) * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
if (m_UV_Packed.m_NumItems >= m_VertexCount * 6)
{
m_UV3 = new float[m_VertexCount * 2];
for (uint v = 0; v < m_VertexCount * 2; v++)
{
m_UV3[v] = (float)((double)m_UV_Unpacked[v + m_VertexCount * 4] / bitmax) * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
if (m_UV_Packed.m_NumItems == m_VertexCount * 8)
{
m_UV4 = new float[m_VertexCount * 2];
for (uint v = 0; v < m_VertexCount * 2; v++)
{
m_UV4[v] = (float)((double)m_UV_Unpacked[v + m_VertexCount * 6] / bitmax) * m_UV_Packed.m_Range + m_UV_Packed.m_Start;
}
}
}
}
}
#endregion
#region m_BindPose
if (version[0] < 5)
{
PackedBitVector m_BindPoses_Packed = new PackedBitVector();
m_BindPoses_Packed.m_NumItems = a_Stream.ReadInt32();
m_BindPoses_Packed.m_Range = a_Stream.ReadSingle();
m_BindPoses_Packed.m_Start = a_Stream.ReadSingle();
m_BindPoses_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_BindPoses_Packed.m_Data, 0, m_BindPoses_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_BindPoses_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_BindPoses_Packed.m_NumItems > 0 && (bool)Properties.Settings.Default["exportDeformers"])
{
uint[] m_BindPoses_Unpacked = UnpackBitVector(m_BindPoses_Packed);
int bitmax = 0;//used to convert int value to float
for (int b = 0; b < m_BindPoses_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_BindPose = new float[m_BindPoses_Packed.m_NumItems / 16][,];
for (int i = 0; i < m_BindPose.Length; i++)
{
m_BindPose[i] = new float[4, 4];
for (int j = 0; j < 4; j++)
{
for (int k = 0; k < 4; k++)
{
m_BindPose[i][j,k] = (float)((double)m_BindPoses_Unpacked[i * 16 + j * 4 + k] / bitmax) * m_BindPoses_Packed.m_Range + m_BindPoses_Packed.m_Start;
}
}
}
}
}
#endregion
PackedBitVector m_Normals_Packed = new PackedBitVector();
m_Normals_Packed.m_NumItems = a_Stream.ReadInt32();
m_Normals_Packed.m_Range = a_Stream.ReadSingle();
m_Normals_Packed.m_Start = a_Stream.ReadSingle();
m_Normals_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Normals_Packed.m_Data, 0, m_Normals_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Normals_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_Tangents_Packed = new PackedBitVector();
m_Tangents_Packed.m_NumItems = a_Stream.ReadInt32();
m_Tangents_Packed.m_Range = a_Stream.ReadSingle();
m_Tangents_Packed.m_Start = a_Stream.ReadSingle();
m_Tangents_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Tangents_Packed.m_Data, 0, m_Tangents_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Tangents_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
PackedBitVector m_Weights = new PackedBitVector();
m_Weights.m_NumItems = a_Stream.ReadInt32();
m_Weights.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Weights.m_Data, 0, m_Weights.m_Data.Length);
a_Stream.AlignStream(4);
m_Weights.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
#region m_Normals
PackedBitVector m_NormalSigns_packed = new PackedBitVector();
m_NormalSigns_packed.m_NumItems = a_Stream.ReadInt32();
m_NormalSigns_packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_NormalSigns_packed.m_Data, 0, m_NormalSigns_packed.m_Data.Length);
a_Stream.AlignStream(4);
m_NormalSigns_packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Normals_Packed.m_NumItems > 0 && (bool)Properties.Settings.Default["exportNormals"])
{
uint[] m_Normals_Unpacked = UnpackBitVector(m_Normals_Packed);
uint[] m_NormalSigns = UnpackBitVector(m_NormalSigns_packed);
int bitmax = 0;
for (int b = 0; b < m_Normals_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Normals = new float[m_Normals_Packed.m_NumItems / 2 * 3];
for (int v = 0; v < m_Normals_Packed.m_NumItems / 2; v++)
{
m_Normals[v * 3] = (float)((double)m_Normals_Unpacked[v * 2] / bitmax) * m_Normals_Packed.m_Range + m_Normals_Packed.m_Start;
m_Normals[v * 3 + 1] = (float)((double)m_Normals_Unpacked[v * 2 + 1] / bitmax) * m_Normals_Packed.m_Range + m_Normals_Packed.m_Start;
m_Normals[v * 3 + 2] = (float)Math.Sqrt(1 - m_Normals[v * 3] * m_Normals[v * 3] - m_Normals[v * 3 + 1] * m_Normals[v * 3 + 1]);
if (m_NormalSigns[v] == 0) { m_Normals[v * 3 + 2] *= -1; }
}
}
#endregion
#region m_Tangents
PackedBitVector m_TangentSigns_packed = new PackedBitVector();
m_TangentSigns_packed.m_NumItems = a_Stream.ReadInt32();
m_TangentSigns_packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_TangentSigns_packed.m_Data, 0, m_TangentSigns_packed.m_Data.Length);
a_Stream.AlignStream(4);
m_TangentSigns_packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Tangents_Packed.m_NumItems > 0 && (bool)Properties.Settings.Default["exportTangents"])
{
uint[] m_Tangents_Unpacked = UnpackBitVector(m_Tangents_Packed);
uint[] m_TangentSigns = UnpackBitVector(m_TangentSigns_packed);
int bitmax = 0;
for (int b = 0; b < m_Tangents_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Tangents = new float[m_Tangents_Packed.m_NumItems / 2 * 3];
for (int v = 0; v < m_Tangents_Packed.m_NumItems / 2; v++)
{
m_Tangents[v * 3] = (float)((double)m_Tangents_Unpacked[v * 2] / bitmax) * m_Tangents_Packed.m_Range + m_Tangents_Packed.m_Start;
m_Tangents[v * 3 + 1] = (float)((double)m_Tangents_Unpacked[v * 2 + 1] / bitmax) * m_Tangents_Packed.m_Range + m_Tangents_Packed.m_Start;
m_Tangents[v * 3 + 2] = (float)Math.Sqrt(1 - m_Tangents[v * 3] * m_Tangents[v * 3] - m_Tangents[v * 3 + 1] * m_Tangents[v * 3 + 1]);
if (m_TangentSigns[v] == 0) { m_Tangents[v * 3 + 2] *= -1; }
}
}
#endregion
#region m_FloatColors
if (version[0] >= 5)
{
PackedBitVector m_FloatColors = new PackedBitVector();
m_FloatColors.m_NumItems = a_Stream.ReadInt32();
m_FloatColors.m_Range = a_Stream.ReadSingle();
m_FloatColors.m_Start = a_Stream.ReadSingle();
m_FloatColors.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_FloatColors.m_Data, 0, m_FloatColors.m_Data.Length);
a_Stream.AlignStream(4);
m_FloatColors.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_FloatColors.m_NumItems > 0 && (bool)Properties.Settings.Default["exportColors"])
{
uint[] m_FloatColors_Unpacked = UnpackBitVector(m_FloatColors);
int bitmax = 0;
for (int b = 0; b < m_FloatColors.m_BitSize; b++) { bitmax |= (1 << b); }
m_Colors = new float[m_FloatColors.m_NumItems];
for (int v = 0; v < m_FloatColors.m_NumItems; v++)
{
m_Colors[v] = (float)m_FloatColors_Unpacked[v] / bitmax * m_FloatColors.m_Range + m_FloatColors.m_Start;
}
}
}
#endregion
#region m_Skin
PackedBitVector m_BoneIndices = new PackedBitVector();
m_BoneIndices.m_NumItems = a_Stream.ReadInt32();
m_BoneIndices.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_BoneIndices.m_Data, 0, m_BoneIndices.m_Data.Length);
a_Stream.AlignStream(4);
m_BoneIndices.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
//how the hell does this work??
if (m_BoneIndices.m_NumItems > 0 && m_BoneIndices.m_NumItems == m_Weights.m_NumItems && (bool)Properties.Settings.Default["exportDeformers"])
{
uint[] m_Weights_Unpacked = UnpackBitVector(m_Weights);
int bitmax = 0;
for (int b = 0; b < m_Weights.m_BitSize; b++) { bitmax |= (1 << b); }
uint[] m_BoneIndices_Unpacked = UnpackBitVector(m_BoneIndices);
m_Skin = new List<BoneInfluence>[m_BoneIndices.m_NumItems / 4];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new List<BoneInfluence>();
for (int i = 0; i < 4; i++)
{
m_Skin[s].Add(new BoneInfluence() { weight = (float)((double)m_Weights_Unpacked[s * 4 + i] / bitmax),
boneIndex = (int)m_BoneIndices_Unpacked[s * 4 + i] });
}
}
}
#endregion
PackedBitVector m_Triangles = new PackedBitVector();
m_Triangles.m_NumItems = a_Stream.ReadInt32();
m_Triangles.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Triangles.m_Data, 0, m_Triangles.m_Data.Length);
a_Stream.AlignStream(4);
m_Triangles.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Triangles.m_NumItems > 0) { m_IndexBuffer = UnpackBitVector(m_Triangles); }
}
#endregion
#region Colors & Collision triangles for 3.4.2 and earlier
if (version[0] <= 2 || (version[0] == 3 && version[1] <= 4)) //
{
a_Stream.Position += 24; //Axis-Aligned Bounding Box
int m_Colors_size = a_Stream.ReadInt32();
m_Colors = new float[m_Colors_size * 4];
for (int v = 0; v < m_Colors_size * 4; v++) { m_Colors[v] = (float)(a_Stream.ReadByte()) / 0xFF; }
int m_CollisionTriangles_size = a_Stream.ReadInt32();
a_Stream.Position += m_CollisionTriangles_size * 4; //UInt32 indices
int m_CollisionVertexCount = a_Stream.ReadInt32();
}
#endregion
#region Compressed colors & Local AABB for 3.5.0 to 4.x.x
else //vertex colors are either in streams or packed bits
{
if (version[0] < 5)
{
PackedBitVector m_Colors_Packed = new PackedBitVector();
m_Colors_Packed.m_NumItems = a_Stream.ReadInt32();
m_Colors_Packed.m_Data = new byte[a_Stream.ReadInt32()];
a_Stream.Read(m_Colors_Packed.m_Data, 0, m_Colors_Packed.m_Data.Length);
a_Stream.AlignStream(4);
m_Colors_Packed.m_BitSize = a_Stream.ReadByte();
a_Stream.Position += 3; //4 byte alignment
if (m_Colors_Packed.m_NumItems > 0)
{
if (m_Colors_Packed.m_BitSize == 32)
{
//4 x 8bit color channels
m_Colors = new float[m_Colors_Packed.m_Data.Length];
for (int v = 0; v < m_Colors_Packed.m_Data.Length; v++)
{
m_Colors[v] = (float)m_Colors_Packed.m_Data[v] / 0xFF;
}
}
else //not tested
{
uint[] m_Colors_Unpacked = UnpackBitVector(m_Colors_Packed);
int bitmax = 0;//used to convert int value to float
for (int b = 0; b < m_Colors_Packed.m_BitSize; b++) { bitmax |= (1 << b); }
m_Colors = new float[m_Colors_Packed.m_NumItems];
for (int v = 0; v < m_Colors_Packed.m_NumItems; v++)
{
m_Colors[v] = (float)m_Colors_Unpacked[v] / bitmax;
}
}
}
}
else { uint m_UVInfo = a_Stream.ReadUInt32(); }
a_Stream.Position += 24; //Axis-Aligned Bounding Box
}
#endregion
int m_MeshUsageFlags = a_Stream.ReadInt32();
if (version[0] >= 5)
{
//int m_BakedConvexCollisionMesh = a_Stream.ReadInt32();
//a_Stream.Position += m_BakedConvexCollisionMesh;
//int m_BakedTriangleCollisionMesh = a_Stream.ReadInt32();
//a_Stream.Position += m_BakedConvexCollisionMesh;
}
#region Build face indices
for (int s = 0; s < m_SubMeshes_size; s++)
{
uint firstIndex = m_SubMeshes[s].firstByte / 2;
if (!m_Use16BitIndices) { firstIndex /= 2; }
if (m_SubMeshes[s].topology == 0)
{
for (int i = 0; i < m_SubMeshes[s].indexCount / 3; i++)
{
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3]);
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3 + 1]);
m_Indices.Add(m_IndexBuffer[firstIndex + i * 3 + 2]);
m_materialIDs.Add(s);
}
}
else
{
for (int i = 0; i < m_SubMeshes[s].indexCount - 2; i++)
{
uint fa = m_IndexBuffer[firstIndex + i];
uint fb = m_IndexBuffer[firstIndex + i + 1];
uint fc = m_IndexBuffer[firstIndex + i + 2];
if ((fa!=fb) && (fa!=fc) && (fc!=fb))
{
m_Indices.Add(fa);
if ((i % 2) == 0)
{
m_Indices.Add(fb);
m_Indices.Add(fc);
}
else
{
m_Indices.Add(fc);
m_Indices.Add(fb);
}
m_materialIDs.Add(s);
}
}
}
}
#endregion
}
private void readBundle(EndianStream b_Stream)
{
var header = b_Stream.ReadStringToNull();
if (header == "UnityWeb" || header == "UnityRaw" || header == "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
if (ver1 < 6) { int bundleSize = b_Stream.ReadInt32(); }
else
{
long bundleSize = b_Stream.ReadInt64();
return;
}
short dummy2 = b_Stream.ReadInt16();
int offset = b_Stream.ReadInt16();
int dummy3 = b_Stream.ReadInt32();
int lzmaChunks = b_Stream.ReadInt32();
int lzmaSize = 0;
long streamSize = 0;
for (int i = 0; i < lzmaChunks; i++)
{
lzmaSize = b_Stream.ReadInt32();
streamSize = b_Stream.ReadInt32();
}
b_Stream.Position = offset;
switch (header)
{
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA": //.bytes
case "UnityWeb":
{
byte[] lzmaBuffer = new byte[lzmaSize];
b_Stream.Read(lzmaBuffer, 0, lzmaSize);
using (var lzmaStream = new EndianStream(SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(new MemoryStream(lzmaBuffer)), EndianType.BigEndian))
{
getFiles(lzmaStream, 0);
}
break;
}
case "UnityRaw":
{
getFiles(b_Stream, offset);
break;
}
}
}
else if (header == "UnityFS")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
long bundleSize = b_Stream.ReadInt64();
}
}
private void getFiles(EndianStream f_Stream, int offset)
{
int fileCount = f_Stream.ReadInt32();
for (int i = 0; i < fileCount; i++)
{
MemoryAssetsFile memFile = new MemoryAssetsFile();
memFile.fileName = f_Stream.ReadStringToNull();
int fileOffset = f_Stream.ReadInt32();
fileOffset += offset;
int fileSize = f_Stream.ReadInt32();
long nextFile = f_Stream.Position;
f_Stream.Position = fileOffset;
byte[] buffer = new byte[fileSize];
f_Stream.Read(buffer, 0, fileSize);
memFile.memStream = new MemoryStream(buffer);
MemoryAssetsFileList.Add(memFile);
f_Stream.Position = nextFile;
}
}
private void readBundle(EndianStream b_Stream)
{
var header = b_Stream.ReadStringToNull();
if (header == "UnityWeb" || header == "UnityRaw" || header == "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
if (ver1 < 6)
{
int bundleSize = b_Stream.ReadInt32();
}
else
{
long bundleSize = b_Stream.ReadInt64();
return;
}
short dummy2 = b_Stream.ReadInt16();
int offset = b_Stream.ReadInt16();
int dummy3 = b_Stream.ReadInt32();
int lzmaChunks = b_Stream.ReadInt32();
int lzmaSize = 0;
long streamSize = 0;
for (int i = 0; i < lzmaChunks; i++)
{
lzmaSize = b_Stream.ReadInt32();
streamSize = b_Stream.ReadInt32();
}
b_Stream.Position = offset;
switch (header)
{
case "\xFA\xFA\xFA\xFA\xFA\xFA\xFA\xFA": //.bytes
case "UnityWeb":
{
byte[] lzmaBuffer = new byte[lzmaSize];
b_Stream.Read(lzmaBuffer, 0, lzmaSize);
using (var lzmaStream = new EndianStream(SevenZip.Compression.LZMA.SevenZipHelper.StreamDecompress(new MemoryStream(lzmaBuffer)), EndianType.BigEndian))
{
getFiles(lzmaStream, 0);
}
break;
}
case "UnityRaw":
{
getFiles(b_Stream, offset);
break;
}
}
}
else if (header == "UnityFS")
{
ver1 = b_Stream.ReadInt32();
ver2 = b_Stream.ReadStringToNull();
ver3 = b_Stream.ReadStringToNull();
long bundleSize = b_Stream.ReadInt64();
}
}