public static MeshGroup Clone(this MeshGroup src)
{
throw new NotImplementedException();
// var dst = new MeshGroup(src.Name);
// return dst;
}
/// <summary>
/// Integrate meshes to a single mesh
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
public static MeshGroup CreateSingleMesh(this Model model, string name)
{
// new mesh to store result
var meshGroup = new MeshGroup(name);
var mesh = new Mesh
{
VertexBuffer = new VertexBuffer()
};
meshGroup.Meshes.Add(mesh);
var useCountList = GetNodeSkinUseCount(model);
// new Skin.
// Joints has include all joint
meshGroup.Skin = new Skin();
for (int i = 0; i < useCountList.Length; ++i)
{
if (useCountList[i] > 0)
{
// add joint that has bone weight
meshGroup.Skin.Joints.Add(model.Nodes[i]);
}
}
model.Skins.Clear();
model.Skins.Add(meshGroup.Skin);
// concatenate all mesh
foreach (var node in model.Root.Traverse().Skip(1))
{
var g = node.MeshGroup;
if (g != null)
{
foreach (var m in g.Meshes)
{
if (g.Skin != null && m.VertexBuffer.Joints != null && m.VertexBuffer.Weights != null)
{
var jointIndexMap = g.Skin.Joints.Select(x => meshGroup.Skin.Joints.IndexOf(x)).ToArray();
mesh.Append(m.VertexBuffer, m.IndexBuffer, m.Submeshes, m.MorphTargets, jointIndexMap);
}
else
{
var rootIndex = meshGroup.Skin.Joints.IndexOf(node);
mesh.Append(m.VertexBuffer, m.IndexBuffer, m.Submeshes, m.MorphTargets, null, rootIndex, node.Matrix);
}
}
}
}
foreach (var target in mesh.MorphTargets)
{
target.VertexBuffer.Resize(mesh.VertexBuffer.Count);
}
return(meshGroup);
}
/// <summary>
/// Meshを置き換える。
///
/// src=null, dst!=null で追加。
/// src!=null, dst=null で削除。
/// </summary>
/// <param name = "src">置き換え元</param>
/// <param name = "dst">置き換え先</param>
public void MeshReplace(MeshGroup src, MeshGroup dst)
{
// replace: Meshes
if (src != null)
{
Model.MeshGroups.RemoveAll(x => x == src);
}
if (dst != null && !Model.MeshGroups.Contains(dst))
{
Model.MeshGroups.Add(dst);
}
// replace: Node.Mesh
foreach (var node in Model.Nodes)
{
if (src != null && src == node.MeshGroup)
{
node.MeshGroup = dst;
}
}
// fix VRM
if (Model.Vrm != null)
{
// replace: VrmBlendShape.Mesh
if (Model.Vrm.BlendShape != null)
{
foreach (var x in Model.Vrm.BlendShape.BlendShapeList)
{
for (int i = 0; i < x.BlendShapeValues.Count; ++i)
{
var v = x.BlendShapeValues[i];
if (src != null && src == v.Mesh)
{
v.Mesh = dst;
}
}
}
}
// replace: VrmFirstPerson.MeshAnnotations
if (src != null)
{
Model.Vrm.FirstPerson.Annotations.RemoveAll(x => x.Mesh == src);
}
if (dst != null && !Model.Vrm.FirstPerson.Annotations.Any(x => x.Mesh == dst))
{
Model.Vrm.FirstPerson.Annotations.Add(
new FirstPersonMeshAnnotation(dst, FirstPersonMeshType.Auto));
}
}
}
public static ValueTuple <MeshGroup, MeshGroup> SepareteByHeadBone(this MeshGroup g, HashSet <int> boneIndices)
{
if (g.Meshes.Count > 1)
{
throw new NotImplementedException("MeshGroup.Meshes.Count must 1");
}
var src = g.Meshes[0];
if (src.Topology != TopologyType.Triangles)
{
throw new InvalidOperationException("not GltfPrimitiveMode.Triangles");
}
var(headTriangles, bodyTriangles) = MeshSplitter.SplitTrianglesByBoneIndices(src, boneIndices);
MeshGroup head = default(MeshGroup);
if (headTriangles.Any())
{
var mesh = MeshSplitter.SeparateMesh(src, headTriangles, true);
head = new MeshGroup(g.Name + ".headMesh")
{
Skin = g.Skin,
};
head.Meshes.Add(mesh);
}
MeshGroup body = default(MeshGroup);
if (bodyTriangles.Any())
{
var mesh = MeshSplitter.SeparateMesh(src, bodyTriangles);
body = new MeshGroup(g.Name)
{
Skin = g.Skin,
};
body.Meshes.Add(mesh);
}
return(head, body);
}
/// <summary>
/// MorphTarget が有る Mesh と無い Mesh に分ける
/// </summary>
/// <param name="g"></param>
/// <returns></returns>
public static ValueTuple <MeshGroup, MeshGroup> SepareteByMorphTarget(this MeshGroup g)
{
if (g.Meshes.Count > 1)
{
throw new NotImplementedException("MeshGroup.Meshes.Count must 1");
}
var src = g.Meshes[0];
if (src.Topology != TopologyType.Triangles)
{
throw new InvalidOperationException("not GltfPrimitiveMode.Triangles");
}
var(withTriangles, withoutTriangles) = MeshSplitter.SplitTriangles(src);
MeshGroup with = default(MeshGroup);
if (withTriangles.Any())
{
var mesh = MeshSplitter.SeparateMesh(src, withTriangles, true);
with = new MeshGroup(g.Name + ".blendshape")
{
Skin = g.Skin,
};
with.Meshes.Add(mesh);
}
MeshGroup without = default(MeshGroup);
if (withoutTriangles.Any())
{
var mesh = MeshSplitter.SeparateMesh(src, withoutTriangles);
without = new MeshGroup(g.Name)
{
Skin = g.Skin,
};
without.Meshes.Add(mesh);
}
return(with, without);
}
/// <summary>
/// Meshを置き換える。
///
/// src=null, dst!=null で追加。
/// src!=null, dst=null で削除。
/// </summary>
/// <param name = "src">置き換え元</param>
/// <param name = "dst">置き換え先</param>
public void MeshReplace(MeshGroup src, MeshGroup dst)
{
// replace: Meshes
if (src != null)
{
Model.MeshGroups.RemoveAll(x => x == src);
}
if (dst != null && !Model.MeshGroups.Contains(dst))
{
Model.MeshGroups.Add(dst);
}
// replace: Node.Mesh
foreach (var node in Model.Nodes)
{
if (src != null && src == node.MeshGroup)
{
node.MeshGroup = dst;
}
}
}
public FirstPersonMeshAnnotation(MeshGroup mesh, FirstPersonMeshType flag)
{
Mesh = mesh;
FirstPersonFlag = flag;
}
private static VrmLib.MeshGroup CreateMesh(UnityEngine.Mesh mesh, Renderer renderer, List <UnityEngine.Material> materials)
{
var meshGroup = new VrmLib.MeshGroup(mesh.name);
var vrmMesh = new VrmLib.Mesh();
vrmMesh.VertexBuffer = new VrmLib.VertexBuffer();
vrmMesh.VertexBuffer.Add(VrmLib.VertexBuffer.PositionKey, ToBufferAccessor(mesh.vertices));
if (mesh.boneWeights.Length == mesh.vertexCount)
{
vrmMesh.VertexBuffer.Add(
VrmLib.VertexBuffer.WeightKey,
ToBufferAccessor(mesh.boneWeights.Select(x =>
new Vector4(x.weight0, x.weight1, x.weight2, x.weight3)).ToArray()
));
vrmMesh.VertexBuffer.Add(
VrmLib.VertexBuffer.JointKey,
ToBufferAccessor(mesh.boneWeights.Select(x =>
new SkinJoints((ushort)x.boneIndex0, (ushort)x.boneIndex1, (ushort)x.boneIndex2, (ushort)x.boneIndex3)).ToArray()
));
}
if (mesh.uv.Length == mesh.vertexCount)
{
vrmMesh.VertexBuffer.Add(VrmLib.VertexBuffer.TexCoordKey, ToBufferAccessor(mesh.uv));
}
if (mesh.normals.Length == mesh.vertexCount)
{
vrmMesh.VertexBuffer.Add(VrmLib.VertexBuffer.NormalKey, ToBufferAccessor(mesh.normals));
}
if (mesh.colors.Length == mesh.vertexCount)
{
vrmMesh.VertexBuffer.Add(VrmLib.VertexBuffer.ColorKey, ToBufferAccessor(mesh.colors));
}
vrmMesh.IndexBuffer = ToBufferAccessor(mesh.triangles);
int offset = 0;
for (int i = 0; i < mesh.subMeshCount; i++)
{
#if UNITY_2019
var subMesh = mesh.GetSubMesh(i);
try
{
vrmMesh.Submeshes.Add(new VrmLib.Submesh(offset, subMesh.indexCount, materials.IndexOf(renderer.sharedMaterials[i])));
}
catch (Exception ex)
{
Debug.LogError(ex);
}
offset += subMesh.indexCount;
#else
var triangles = mesh.GetTriangles(i);
try
{
vrmMesh.Submeshes.Add(new VrmLib.Submesh(offset, triangles.Length, materials.IndexOf(renderer.sharedMaterials[i])));
}
catch (Exception ex)
{
Debug.LogError(ex);
}
offset += triangles.Length;
#endif
}
for (int i = 0; i < mesh.blendShapeCount; i++)
{
var blendShapeVertices = mesh.vertices;
var usePosition = blendShapeVertices != null && blendShapeVertices.Length > 0;
var blendShapeNormals = mesh.normals;
var useNormal = usePosition && blendShapeNormals != null && blendShapeNormals.Length == blendShapeVertices.Length;
// var useNormal = usePosition && blendShapeNormals != null && blendShapeNormals.Length == blendShapeVertices.Length && !exportOnlyBlendShapePosition;
var blendShapeTangents = mesh.tangents.Select(y => (Vector3)y).ToArray();
//var useTangent = usePosition && blendShapeTangents != null && blendShapeTangents.Length == blendShapeVertices.Length;
// var useTangent = false;
var frameCount = mesh.GetBlendShapeFrameCount(i);
mesh.GetBlendShapeFrameVertices(i, frameCount - 1, blendShapeVertices, blendShapeNormals, null);
if (usePosition)
{
var morphTarget = new VrmLib.MorphTarget(mesh.GetBlendShapeName(i));
morphTarget.VertexBuffer = new VrmLib.VertexBuffer();
morphTarget.VertexBuffer.Add(VrmLib.VertexBuffer.PositionKey, ToBufferAccessor(blendShapeVertices));
vrmMesh.MorphTargets.Add(morphTarget);
}
}
meshGroup.Meshes.Add(vrmMesh);
return(meshGroup);
}
public BlendShapeBindValue(MeshGroup mesh, string name, float value)
{
Mesh = mesh;
Name = name;
Value = value;
}
