public MeshWrapper([NotNull] IReadOnlyList <SerializedFile> assetFiles, [NotNull] Mesh mesh, [NotNull] TexturedMaterialExtraProperties extraMaterialProperties)
{
Name = mesh.m_Name;
{
var subMeshCount = mesh.m_SubMeshes.Length;
var subMeshes = new PrettySubMesh[subMeshCount];
uint meshIndexStart = 0;
for (var i = 0; i < mesh.m_SubMeshes.Length; i += 1)
{
var subMesh = mesh.m_SubMeshes[i];
var material = FindMaterialInfo(assetFiles, mesh, i, extraMaterialProperties);
var sm = new PrettySubMesh(meshIndexStart, subMesh, material);
subMeshes[i] = sm;
meshIndexStart += subMesh.indexCount;
}
SubMeshes = subMeshes;
}
Indices = mesh.m_Indices.ToArray();
{
const int bonePerVertex = 4;
var skinCount = mesh.m_Skin.Length;
var skins = new BoneInfluence[skinCount][];
for (var i = 0; i < skinCount; i += 1)
{
var s = new BoneInfluence[bonePerVertex];
skins[i] = s;
var w = mesh.m_Skin[i];
for (var j = 0; j < bonePerVertex; j += 1)
{
BoneInfluence influence;
if (w != null)
{
influence = new BoneInfluence(w, j);
}
else
{
influence = null;
}
s[j] = influence;
}
}
Skin = skins;
}
BindPose = (Matrix4x4[])mesh.m_BindPose.Clone();
VertexCount = mesh.m_VertexCount;
Vertices = ReadVector3Array(mesh.m_Vertices, mesh.m_VertexCount);
Normals = ReadVector3Array(mesh.m_Normals);
if (mesh.m_Colors != null)
{
Colors = ReadVector4Array(mesh.m_Colors);
}
UV1 = ReadVector2Array(mesh.m_UV0);
if (mesh.m_Tangents != null)
{
Tangents = ReadVector3Array(mesh.m_Tangents);
}
BoneNameHashes = (uint[])mesh.m_BoneNameHashes.Clone();
if (mesh.m_Shapes != null)
{
Shape = new BlendShapeData(mesh.m_Shapes);
}
}
private CompositeMesh([NotNull] PrettyMesh[] meshes)
{
ComponentMeshCount = meshes.Length;
{
var meshNames = new List <string>();
foreach (var m in meshes)
{
if (m is CompositeMesh cm)
{
meshNames.AddRange(cm.Names);
}
else
{
meshNames.Add(m.Name);
}
}
Names = meshNames.ToArray();
var sb = new StringBuilder();
sb.Append("Composite mesh of:");
foreach (var name in meshNames)
{
sb.AppendLine();
sb.Append("\t");
sb.Append(name);
}
Name = sb.ToString();
}
var subMeshList = new List <PrettySubMesh>();
var indexList = new List <uint>();
var skinList = new List <BoneInfluence[]>();
var bindPoseList = new List <Matrix4x4>();
var vertexList = new List <Vector3>();
var normalList = new List <Vector3>();
var colorList = new List <Vector4>();
var uv1List = new List <Vector2>();
// uv2 is the optional secondary UV (highlight etc.)
var uv2List = new List <Vector2?>();
var tangentList = new List <Vector3>();
var boneNameHashList = new List <uint>();
var parentMeshIndices = new List <int>();
uint vertexStart = 0;
uint indexStart = 0;
var boneHashStart = 0;
var parentMeshIndex = 0;
foreach (var mesh in meshes)
{
var cm = mesh as CompositeMesh;
for (var i = 0; i < mesh.SubMeshes.Length; i++)
{
var subMesh = mesh.SubMeshes[i];
Debug.Assert(subMesh.Topology == PrimitiveType.Triangles);
var newSubMesh = new PrettySubMesh(
subMesh.FirstIndex + indexStart, subMesh.IndexCount, subMesh.Topology, subMesh.TriangleCount,
subMesh.FirstVertex + vertexStart, subMesh.VertexCount, subMesh.BoundingBox, subMesh.Material);
subMeshList.Add(newSubMesh);
if (cm != null)
{
parentMeshIndices.Add(parentMeshIndex + cm.ParentMeshIndices[i]);
}
else
{
parentMeshIndices.Add(parentMeshIndex);
}
}
if (cm != null)
{
parentMeshIndex += cm.Names.Length;
}
else
{
++parentMeshIndex;
}
foreach (var index in mesh.Indices)
{
indexList.Add(index + vertexStart);
}
foreach (var skin in mesh.Skin)
{
var s = new BoneInfluence[4];
for (var i = 0; i < skin.Length; i++)
{
var influence = skin[i];
if (influence == null)
{
break;
}
var newInfluence = new BoneInfluence(influence.BoneIndex + boneHashStart, influence.Weight);
s[i] = newInfluence;
}
skinList.Add(s);
}
// Some vertex do not bind to a bone (e.g. 100 vertices & 90 bone influences),
// so we have to fill the gap ourselves, or this will influence the meshes
// combined after current mesh.
if (mesh.Skin.Length < mesh.VertexCount)
{
var difference = mesh.VertexCount - mesh.Skin.Length;
for (var i = 0; i < difference; ++i)
{
skinList.Add(new BoneInfluence[4]);
}
}
boneNameHashList.AddRange(mesh.BoneNameHashes);
bindPoseList.AddRange(mesh.BindPose);
vertexList.AddRange(mesh.Vertices);
normalList.AddRange(mesh.Normals);
if (mesh.Colors != null)
{
colorList.AddRange(mesh.Colors);
}
else
{
for (var i = 0; i < mesh.VertexCount; ++i)
{
colorList.Add(Vector4.Zero);
}
}
// TODO: counts don't match?
if (mesh.Tangents != null)
{
tangentList.AddRange(mesh.Tangents);
}
else
{
for (var i = 0; i < mesh.VertexCount; ++i)
{
tangentList.Add(Vector3.Zero);
}
}
uv1List.AddRange(mesh.UV1);
uv2List.AddRange(mesh.UV2);
vertexStart += (uint)mesh.VertexCount;
indexStart += (uint)mesh.Indices.Length;
boneHashStart += mesh.BoneNameHashes.Length;
}
VertexCount = (int)vertexStart;
var shape = MergeBlendShapes(meshes);
Shape = shape;
SubMeshes = subMeshList.ToArray();
Indices = indexList.ToArray();
Skin = skinList.ToArray();
BindPose = bindPoseList.ToArray();
Vertices = vertexList.ToArray();
Normals = normalList.ToArray();
Colors = colorList.ToArray();
UV1 = uv1List.ToArray();
UV2 = uv2List.ToArray();
Tangents = tangentList.ToArray();
BoneNameHashes = boneNameHashList.ToArray();
ParentMeshIndices = parentMeshIndices.ToArray();
}