private static void GetStreams(VertexData vertexData)
{
var m_Channels = vertexData.m_Channels;
var streamCount = m_Channels.Max(x => x.stream) + 1;
var m_Streams = new StreamInfo[streamCount];
uint offset = 0;
for (int s = 0; s < streamCount; s++)
{
uint chnMask = 0;
uint stride = 0;
for (int chn = 0; chn < m_Channels.Length; chn++)
{
var m_Channel = m_Channels[chn];
if (m_Channel.stream == s)
{
if (m_Channel.dimension > 0)
{
chnMask |= 1u << chn;
stride += m_Channel.dimension * GetChannelFormatSize(m_Channel.format);
}
}
}
m_Streams[s] = new StreamInfo
{
channelMask = chnMask,
offset = offset,
stride = stride,
dividerOp = 0,
frequency = 0
};
offset += vertexData.m_VertexCount * stride;
//static size_t AlignStreamSize (size_t size) { return (size + (kVertexStreamAlign-1)) & ~(kVertexStreamAlign-1); }
offset = (offset + (16u - 1u)) & ~(16u - 1u);
}
vertexData.m_Streams = m_Streams;
}
private static Vector2[][] GetTriangles(VertexData m_VertexData, SubMesh[] m_SubMeshes, byte[] m_IndexBuffer)
{
var triangles = new List <Vector2[]>();
GetStreams(m_VertexData);
var m_Channel = m_VertexData.m_Channels[0]; //kShaderChannelVertex
var m_Stream = m_VertexData.m_Streams[m_Channel.stream];
using (BinaryReader vertexReader = new BinaryReader(new MemoryStream(m_VertexData.m_DataSize)),
indexReader = new BinaryReader(new MemoryStream(m_IndexBuffer)))
{
foreach (var subMesh in m_SubMeshes)
{
vertexReader.BaseStream.Position = m_Stream.offset + subMesh.firstVertex * m_Stream.stride + m_Channel.offset;
var vertices = new Vector2[subMesh.vertexCount];
for (int v = 0; v < subMesh.vertexCount; v++)
{
vertices[v] = (Vector2)vertexReader.ReadVector3();
vertexReader.BaseStream.Position += m_Stream.stride - 12;
}
indexReader.BaseStream.Position = subMesh.firstByte;
var triangleCount = subMesh.indexCount / 3u;
for (int i = 0; i < triangleCount; i++)
{
var first = indexReader.ReadUInt16() - subMesh.firstVertex;
var second = indexReader.ReadUInt16() - subMesh.firstVertex;
var third = indexReader.ReadUInt16() - subMesh.firstVertex;
var triangle = new[] { vertices[first], vertices[second], vertices[third] };
triangles.Add(triangle);
}
}
}
return(triangles.ToArray());
}
public SpriteRenderData(ObjectReader reader)
{
var version = reader.version;
texture = new PPtr <Texture2D>(reader);
if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
{
alphaTexture = new PPtr <Texture2D>(reader);
}
if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
{
var m_SubMeshesSize = reader.ReadInt32();
m_SubMeshes = new SubMesh[m_SubMeshesSize];
for (int i = 0; i < m_SubMeshesSize; i++)
{
m_SubMeshes[i] = new SubMesh(reader);
}
m_IndexBuffer = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream(4);
m_VertexData = new VertexData(reader);
}
else
{
var verticesSize = reader.ReadInt32();
vertices = new SpriteVertex[verticesSize];
for (int i = 0; i < verticesSize; i++)
{
vertices[i] = new SpriteVertex(reader);
}
indices = reader.ReadUInt16Array(reader.ReadInt32());
reader.AlignStream(4);
}
if (version[0] >= 2018) //2018 and up
{
m_Bindpose = reader.ReadMatrixArray(reader.ReadInt32());
if (version[0] == 2018 && version[1] < 2) //2018.2 down
{
var m_SourceSkinSize = reader.ReadInt32();
for (int i = 0; i < m_SourceSkinSize; i++)
{
m_SourceSkin[i] = new BoneWeights4(reader);
}
}
}
textureRect = reader.ReadRectangleF();
textureRectOffset = reader.ReadVector2();
if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
{
atlasRectOffset = reader.ReadVector2();
}
settingsRaw = new SpriteSettings(reader);
if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
{
uvTransform = reader.ReadVector4();
}
if (version[0] >= 2017) //2017 and up
{
downscaleMultiplier = reader.ReadSingle();
}
}
public List <uint> m_Indices = new List <uint>(); //use a list because I don't always know the facecount for triangle strips
public Mesh(ObjectReader reader) : base(reader)
{
if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.5 down
{
m_Use16BitIndices = reader.ReadInt32() > 0;
}
if (version[0] == 2 && version[1] <= 5) //2.5 and down
{
int m_IndexBuffer_size = reader.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] = reader.ReadUInt16();
}
reader.AlignStream();
}
else
{
m_IndexBuffer = reader.ReadUInt32Array(m_IndexBuffer_size / 4);
}
}
int m_SubMeshesSize = reader.ReadInt32();
m_SubMeshes = new SubMesh[m_SubMeshesSize];
for (int i = 0; i < m_SubMeshesSize; i++)
{
m_SubMeshes[i] = new SubMesh(reader);
}
if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
{
m_Shapes = new BlendShapeData(reader);
}
if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
{
m_BindPose = reader.ReadMatrixArray();
m_BoneNameHashes = reader.ReadUInt32Array();
var m_RootBoneNameHash = reader.ReadUInt32();
}
if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and up
{
if (version[0] >= 2019) //2019 and up
{
var m_BonesAABBSize = reader.ReadInt32();
var m_BonesAABB = new MinMaxAABB[m_BonesAABBSize];
for (int i = 0; i < m_BonesAABBSize; i++)
{
m_BonesAABB[i] = new MinMaxAABB(reader);
}
var m_VariableBoneCountWeights = reader.ReadUInt32Array();
}
var m_MeshCompression = reader.ReadByte();
if (version[0] >= 4)
{
if (version[0] < 5)
{
var m_StreamCompression = reader.ReadByte();
}
var m_IsReadable = reader.ReadBoolean();
var m_KeepVertices = reader.ReadBoolean();
var m_KeepIndices = reader.ReadBoolean();
}
reader.AlignStream();
//Unity fixed it in 2017.3.1p1 and later versions
if ((version[0] > 2017 || (version[0] == 2017 && version[1] >= 4)) || //2017.4
((version[0] == 2017 && version[1] == 3 && version[2] == 1) && buildType.IsPatch) || //fixed after 2017.3.1px
((version[0] == 2017 && version[1] == 3) && m_MeshCompression == 0)) //2017.3.xfx with no compression
{
var m_IndexFormat = reader.ReadInt32();
}
int m_IndexBuffer_size = reader.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] = reader.ReadUInt16();
}
reader.AlignStream();
}
else
{
m_IndexBuffer = reader.ReadUInt32Array(m_IndexBuffer_size / 4);
}
}
if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.4.2 and earlier
{
m_VertexCount = reader.ReadInt32();
m_Vertices = reader.ReadSingleArray(m_VertexCount * 3); //Vector3
m_Skin = new BoneWeights4[reader.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new BoneWeights4(reader);
}
m_BindPose = reader.ReadMatrixArray();
m_UV0 = reader.ReadSingleArray(reader.ReadInt32() * 2); //Vector2
m_UV1 = reader.ReadSingleArray(reader.ReadInt32() * 2); //Vector2
if (version[0] == 2 && version[1] <= 5) //2.5 and down
{
int m_TangentSpace_size = reader.ReadInt32();
m_Normals = new float[m_TangentSpace_size * 3];
m_Tangents = new float[m_TangentSpace_size * 4];
for (int v = 0; v < m_TangentSpace_size; v++)
{
m_Normals[v * 3] = reader.ReadSingle();
m_Normals[v * 3 + 1] = reader.ReadSingle();
m_Normals[v * 3 + 2] = reader.ReadSingle();
m_Tangents[v * 3] = reader.ReadSingle();
m_Tangents[v * 3 + 1] = reader.ReadSingle();
m_Tangents[v * 3 + 2] = reader.ReadSingle();
m_Tangents[v * 3 + 3] = reader.ReadSingle(); //handedness
}
}
else //2.6.0 and later
{
m_Tangents = reader.ReadSingleArray(reader.ReadInt32() * 4); //Vector4
m_Normals = reader.ReadSingleArray(reader.ReadInt32() * 3); //Vector3
}
}
else
{
if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
{
m_Skin = new BoneWeights4[reader.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new BoneWeights4(reader);
}
}
if (version[0] == 3 || (version[0] == 4 && version[1] <= 2)) //4.2 and down
{
m_BindPose = reader.ReadMatrixArray();
}
m_VertexData = new VertexData(reader);
}
if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and later
{
m_CompressedMesh = new CompressedMesh(reader);
}
reader.Position += 24; //AABB m_LocalAABB
if (version[0] < 3 || (version[0] == 3 && version[1] <= 4)) //3.4.2 and earlier
{
int m_Colors_size = reader.ReadInt32();
m_Colors = new float[m_Colors_size * 4];
for (int v = 0; v < m_Colors_size * 4; v++)
{
m_Colors[v] = (float)reader.ReadByte() / 0xFF;
}
int m_CollisionTriangles_size = reader.ReadInt32();
reader.Position += m_CollisionTriangles_size * 4; //UInt32 indices
int m_CollisionVertexCount = reader.ReadInt32();
}
int m_MeshUsageFlags = reader.ReadInt32();
if (version[0] >= 5) //5.0 and up
{
var m_BakedConvexCollisionMesh = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream();
var m_BakedTriangleCollisionMesh = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream();
}
if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
{
var m_MeshMetrics = new float[2];
m_MeshMetrics[0] = reader.ReadSingle();
m_MeshMetrics[1] = reader.ReadSingle();
}
if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
{
reader.AlignStream();
m_StreamData = new StreamingInfo(reader);
}
ProcessData();
}
public List <uint> m_Indices = new List <uint>(); //use a list because I don't always know the facecount for triangle strips
public Mesh(ObjectReader reader) : base(reader)
{
if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.5 down
{
m_Use16BitIndices = reader.ReadInt32() > 0;
}
if (version[0] == 2 && version[1] <= 5) //2.5 and down
{
int m_IndexBuffer_size = reader.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] = reader.ReadUInt16();
}
reader.AlignStream();
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++)
{
m_IndexBuffer[i] = reader.ReadUInt32();
}
}
}
int m_SubMeshesSize = reader.ReadInt32();
m_SubMeshes = new SubMesh[m_SubMeshesSize];
for (int i = 0; i < m_SubMeshesSize; i++)
{
m_SubMeshes[i] = new SubMesh(reader);
}
if (version[0] == 4 && ((version[1] == 1 && !buildType.IsAlpha) || (version[1] > 1 && version[1] <= 2))) //4.1.0 to 4.2.x, excluding 4.1.0 alpha
{
int m_Shapes_size = reader.ReadInt32();
if (m_Shapes_size > 0)
{
//bool stop = true;
}
for (int s = 0; s < m_Shapes_size; s++) //untested
{
var shape_name = reader.ReadAlignedString();
reader.Position += 36; //uint firstVertex, vertexCount; Vector3f aabbMinDelta, aabbMaxDelta; bool hasNormals, hasTangents
}
int m_ShapeVertices_size = reader.ReadInt32();
reader.Position += m_ShapeVertices_size * 40; //vertex positions, normals, tangents & uint index
}
else if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3.0 and later
{
m_Shapes = new BlendShapeData(reader);
m_BindPose = reader.ReadMatrixArray();
m_BoneNameHashes = reader.ReadUInt32Array();
var m_RootBoneNameHash = reader.ReadUInt32();
}
if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and later
{
var m_MeshCompression = reader.ReadByte();
if (version[0] >= 4)
{
if (version[0] < 5)
{
var m_StreamCompression = reader.ReadByte();
}
var m_IsReadable = reader.ReadBoolean();
var m_KeepVertices = reader.ReadBoolean();
var m_KeepIndices = reader.ReadBoolean();
}
reader.AlignStream();
//Unity fixed it in 2017.3.1p1 and later versions
if ((version[0] > 2017 || (version[0] == 2017 && version[1] >= 4)) || //2017.4
((version[0] == 2017 && version[1] == 3 && version[2] == 1) && buildType.IsPatch) || //fixed after 2017.3.1px
((version[0] == 2017 && version[1] == 3) && m_MeshCompression == 0)) //2017.3.xfx with no compression
{
var m_IndexFormat = reader.ReadInt32();
}
int m_IndexBuffer_size = reader.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] = reader.ReadUInt16();
}
reader.AlignStream();
}
else
{
m_IndexBuffer = new uint[m_IndexBuffer_size / 4];
for (int i = 0; i < m_IndexBuffer_size / 4; i++)
{
m_IndexBuffer[i] = reader.ReadUInt32();
}
reader.AlignStream();
}
}
if (version[0] < 3 || (version[0] == 3 && version[1] < 5)) //3.4.2 and earlier
{
m_VertexCount = reader.ReadInt32();
m_Vertices = reader.ReadSingleArray(m_VertexCount * 3); //Vector3
m_Skin = new BoneWeights4[reader.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new BoneWeights4(reader);
}
m_BindPose = reader.ReadMatrixArray();
m_UV0 = reader.ReadSingleArray(reader.ReadInt32() * 2); //Vector2
m_UV1 = reader.ReadSingleArray(reader.ReadInt32() * 2); //Vector2
if (version[0] == 2 && version[1] <= 5) //2.5 and down
{
int m_TangentSpace_size = reader.ReadInt32();
m_Normals = new float[m_TangentSpace_size * 3];
for (int v = 0; v < m_TangentSpace_size; v++)
{
m_Normals[v * 3] = reader.ReadSingle();
m_Normals[v * 3 + 1] = reader.ReadSingle();
m_Normals[v * 3 + 2] = reader.ReadSingle();
reader.Position += 16; //Vector3f tangent & float handedness
}
}
else //2.6.0 and later
{
m_Tangents = reader.ReadSingleArray(reader.ReadInt32() * 4); //Vector4
m_Normals = reader.ReadSingleArray(reader.ReadInt32() * 3); //Vector3
}
}
else
{
if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
{
m_Skin = new BoneWeights4[reader.ReadInt32()];
for (int s = 0; s < m_Skin.Length; s++)
{
m_Skin[s] = new BoneWeights4(reader);
}
}
if (version[0] == 3 || (version[0] == 4 && version[1] <= 2)) //4.2 and down
{
m_BindPose = reader.ReadMatrixArray();
}
m_VertexData = new VertexData(reader);
}
if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and later
{
m_CompressedMesh = new CompressedMesh(reader);
}
reader.Position += 24; //AABB m_LocalAABB
if (version[0] < 3 || (version[0] == 3 && version[1] <= 4)) //3.4.2 and earlier
{
int m_Colors_size = reader.ReadInt32();
m_Colors = new float[m_Colors_size * 4];
for (int v = 0; v < m_Colors_size * 4; v++)
{
m_Colors[v] = (float)reader.ReadByte() / 0xFF;
}
int m_CollisionTriangles_size = reader.ReadInt32();
reader.Position += m_CollisionTriangles_size * 4; //UInt32 indices
int m_CollisionVertexCount = reader.ReadInt32();
}
int m_MeshUsageFlags = reader.ReadInt32();
if (version[0] >= 5) //5.0 and up
{
var m_BakedConvexCollisionMesh = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream();
var m_BakedTriangleCollisionMesh = reader.ReadBytes(reader.ReadInt32());
reader.AlignStream();
}
if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
{
var m_MeshMetrics = new float[2];
m_MeshMetrics[0] = reader.ReadSingle();
m_MeshMetrics[1] = reader.ReadSingle();
}
if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
{
reader.AlignStream();
m_StreamData = new StreamingInfo(reader);
}
ProcessData();
}