private void GenerateSkinnedMesh(Device device, GMeshContainer container)
{
//max number of bone influences per vertex
int maxVertexInfluence;
BoneCombination[] combinedBones;
var skeletalRender = (SkelletalMeshRender)Engine.RenderManager.GetRender <SkelletalMeshNode>();
if (skeletalRender == null)
{
throw new InvalidOperationException("An skeletalModelRender is not defined");
}
int maxPaletteEntries = skeletalRender.MaxPaletteMatrices;
int numPaletteEntries = Math.Min(maxPaletteEntries, container.SkinInfo.BoneCount);
container.NumPaletteEntries = numPaletteEntries;
container.Mesh = container.SkinInfo.ConvertToIndexedBlendedMesh(container.MeshData.Mesh,
container.NumPaletteEntries,
container.GetAdjacency(),
out maxVertexInfluence,
out combinedBones);
container.BoneCombinations = combinedBones;
container.MaxVertexInfluences = maxVertexInfluence;
}
private SkelletalMesh GetMesh(GMeshContainer meshContainer, Bone root, VertexDescriptor vd)
{
SlimDX.Direct3D9.Mesh d3dMesh = meshContainer.Mesh;
var adjacency = meshContainer.GetAdjacency();
var meshMaterials = meshContainer.GetMaterials();
List <MeshMaterial> materials = new List <MeshMaterial>();
for (int i = 0; i < meshMaterials.Length; i++)
{
var matd3d = meshMaterials[i].MaterialD3D;
string textureFilename = meshMaterials[i].TextureFileName;
if (textureFilename != null && !Path.IsPathRooted(textureFilename))
{
textureFilename = Path.Combine(Path.GetDirectoryName(xFile), textureFilename);
}
materials.Add(new MeshMaterial()
{
Name = root.Name + "_material" + i,
Alpha = matd3d.Diffuse.Alpha,
Diffuse = matd3d.Diffuse.ToVector3(),
Specular = matd3d.Specular.ToVector3(),
SpecularPower = Math.Max(1, matd3d.Power),
Reflectivity = 0,
Refractitity = 0,
EmissiveColor = matd3d.Emissive.ToVector3(),
DiffuseMap = textureFilename
});
}
SkelletalMesh mesh = new SkelletalMesh(vd);
mesh.Adjacency = adjacency;
SkinVertex[] vertexes = new SkinVertex[d3dMesh.VertexCount];
Array indices;
if (d3dMesh.IndexBuffer.Description.Format == Format.Index16)
{
indices = new ushort[d3dMesh.FaceCount * 3];
}
else
{
indices = new uint[d3dMesh.FaceCount * 3];
}
VertexDescriptor meshVD = new VertexDescriptor(d3dMesh.GetDeclaration());
int positionOffset = meshVD.GetOffset(DeclarationUsage.Position, 0);
int normalOffset = meshVD.GetOffset(DeclarationUsage.Normal, 0);
int texCoordOffset = meshVD.GetOffset(DeclarationUsage.TextureCoordinate, 0);
int blendIndicesOffset = meshVD.GetOffset(DeclarationUsage.BlendIndices, 0);
int blendIndicesSize = meshVD.SizeOfElement(DeclarationUsage.BlendIndices, 0);
int blendWeightsOffset = meshVD.GetOffset(DeclarationUsage.BlendWeight, 0);
int blendWeightSize = meshVD.SizeOfElement(DeclarationUsage.BlendWeight, 0);
byte[] buffer;
unsafe
{
DataStream vertexStream = d3dMesh.LockVertexBuffer(0);
buffer = new byte[vertexStream.Length];
vertexStream.Read(buffer, 0, (int)vertexStream.Length);
fixed(byte *_pter = buffer)
{
fixed(SkinVertex *pVertexes = vertexes)
{
byte *pter = _pter;
int j = 0;
for (int i = 0; i < d3dMesh.VertexCount; i++)
{
pVertexes[i].Position = *((Vector3 *)(pter + positionOffset));
if (normalOffset >= 0)
{
pVertexes[i].Normal = *((Vector3 *)(pter + normalOffset));
}
if (texCoordOffset >= 0)
{
pVertexes[i].TexCoord = *((Vector2 *)(pter + texCoordOffset));
}
if (blendIndicesOffset >= 0)
{
byte *indicesPter = (pter + blendIndicesOffset);
uint *pDest = (uint *)&(pVertexes[i].BlendIndices);
for (j = 0; j < blendIndicesSize; j++)
{
*(((byte *)pDest) + j) = *(indicesPter + j);
}
}
if (blendWeightsOffset >= 0)
{
byte * weightsPter = (pter + blendWeightsOffset);
Vector4 *pDest = &(pVertexes[i].BlendWeights);
for (j = 0; j < blendWeightSize; j++)
{
*(((byte *)pDest) + j) = *(weightsPter + j);
}
}
pter += d3dMesh.BytesPerVertex;
}
}
}
d3dMesh.UnlockVertexBuffer();
DataStream indexStream = d3dMesh.LockIndexBuffer(0);
GCHandle handler = GCHandle.Alloc(indices, GCHandleType.Pinned);
IntPtr indexPter = Marshal.UnsafeAddrOfPinnedArrayElement(indices, 0);
buffer = new byte[indexStream.Length];
indexStream.Read(buffer, 0, (int)indexStream.Length);
Marshal.Copy(buffer, 0, indexPter, buffer.Length);
handler.Free();
d3dMesh.UnlockIndexBuffer();
}
mesh.CreateVertexBuffer(vertexes);
if (d3dMesh.IndexBuffer.Description.Format == Format.Index16)
{
mesh.CreateIndexBuffer((ushort[])indices);
}
else
{
mesh.CreateIndexBuffer((uint[])indices);
}
List <MeshLayer> layers = new List <MeshLayer>();
if (meshContainer.BoneCombinations == null || meshContainer.BoneCombinations.Length == 0)
{
MeshLayer component = new MeshLayer();
materials.Add(MeshMaterial.CreateDefaultMaterial(meshContainer.Name + "_default"));
component.materialIndex = 0;
component.primitiveCount = mesh.FaceCount;
component.startIndex = 0;
component.startVertex = 0;
component.vertexCount = mesh.VertexCount;
layers.Add(component);
}
else
{
for (int i = 0; i < meshContainer.BoneCombinations.Length; i++)
{
BoneCombination comb = meshContainer.BoneCombinations[i];
MeshLayer component = new MeshLayer();
component.materialIndex = comb.AttributeId;
component.primitiveCount = comb.FaceCount;
component.startIndex = comb.FaceStart * 3;
component.startVertex = comb.VertexStart;
component.vertexCount = comb.VertexCount;
layers.Add(component);
}
}
var layerArray = layers.ToArray();
mesh.Materials = materials.ToArray();
mesh.SetLayers(layerArray);
var skinInfo = meshContainer.SkinInfo;
mesh.MaxVertexInfluences = skinInfo.MaximumVertexInfluences;
var bones = new Bone[skinInfo.BoneCount];
var boneOffsetMatrices = new Matrix[bones.Length];
for (int i = 0; i < bones.Length; i++)
{
bones[i] = root.FindChild(skinInfo.GetBoneName(i));
boneOffsetMatrices[i] = skinInfo.GetBoneOffsetMatrix(i);
}
mesh.Bones = bones;
mesh.BoneBindingMatrices = boneOffsetMatrices;
if (meshContainer.BoneCombinations != null && meshContainer.BoneCombinations.Length > 0)
{
for (int layerIndex = 0; layerIndex < layerArray.Length; layerIndex++)
{
mesh.SetLayerBones(layerIndex, meshContainer.BoneCombinations[layerIndex].BoneIds);
}
}
mesh.LockVertexBuffer();
int[] vertices;
float[] weights;
for (int i = 0; i < mesh.bones.Length; i++)
{
skinInfo.GetBoneInfluence(i, out vertices, out weights);
VertexStreamView <Vector3> positions = mesh.GetVertexViewStream <Vector3>(DeclarationUsage.Position, 0, vertices);
}
mesh.UnlockVertexBuffer();
meshVD.Dispose();
if (normalOffset < 0)
{
mesh.ComputeNormals();
}
if (texCoordOffset < 0)
{
mesh.ComputeTextureCoords(CoordMappingType.Spherical);
}
mesh.ComputeTangents();
return(mesh);
}