void FBXImporter::ProcessMesh(FbxNodeAttribute* nodeAttribute)
{
FbxMesh* mesh = (FbxMesh*)nodeAttribute;
// 网格是否三角化的?如果不是先将其转为三角化的。
// 注意：一步其实应该在建模软件导出的时候进行。
if (!mesh->IsTriangleMesh())
{
FbxGeometryConverter converter(mSDKManager);
// #1
// For FBX SDK 2015.1
nodeAttribute = converter.Triangulate(nodeAttribute, true, false);
// For FBX SDK 2013.3
//converter.TriangulateInPlace(nodeAttribute->GetNode());
mesh = (FbxMesh*)nodeAttribute;
}
FBXMeshData* fbxMeshData = new FBXMeshData();
fbxMeshData->mMesh = mesh;
mFBXMeshDatas.push_back(fbxMeshData);
Log("TriangleCount:%d\n", mesh->GetPolygonCount());
Log("VertexCount:%d\n", mesh->GetControlPointsCount());
Log("IndexCount:%d\n", mesh->GetPolygonVertexCount());
Log("Layer:%d\n", mesh->GetLayerCount());
Log("DeformerCount:%d\n", mesh->GetDeformerCount());
Log("MaterialCount%d\n", mesh->GetNode()->GetMaterialCount());
Log("\n");
}
void FBXSceneEncoder::loadModel(FbxNode* fbxNode, Node* node)
{
FbxMesh* fbxMesh = fbxNode->GetMesh();
if (!fbxMesh || fbxMesh->GetPolygonVertexCount() == 0)
{
return;
}
if (fbxMesh->IsTriangleMesh())
{
Mesh* mesh = loadMesh(fbxMesh);
Model* model = new Model();
model->setMesh(mesh);
node->setModel(model);
loadSkin(fbxMesh, model);
if (model->getSkin())
{
node->resetTransformMatrix();
}
}
}
void FBXScene::ProcessMesh(FbxNode* pNode)
{
FbxMesh* pFBXMesh = pNode->GetMesh();
if( !pFBXMesh )
return;
if ( pFBXMesh->GetPolygonVertexCount() != pFBXMesh->GetPolygonCount() * 3 )
{
FbxGeometryConverter GeometryConverter(pNode->GetFbxManager());
if( !GeometryConverter.TriangulateInPlace( pNode ) )
{
return;
}
pFBXMesh = pNode->GetMesh();
}
pFBXMesh->InitNormals();
pFBXMesh->ComputeVertexNormals(true);
pFBXMesh->GenerateTangentsDataForAllUVSets();
int nVertexCount = pFBXMesh->GetControlPointsCount();
if( nVertexCount <= 0 )
return;
std::vector<BoneWeights> boneWeights(nVertexCount);
ProcessBoneWeights(pFBXMesh, boneWeights);
Model* pModel = new Model(pNode->GetName(), m_Models.GetCount(), false);
FbxVector4* aControlPoints = pFBXMesh->GetControlPoints();
for( int pi = 0; pi < pFBXMesh->GetPolygonCount(); ++pi ) // Whole for-loop takes some time too, investigate further.
{
// Material
Material* pMaterial = NULL;
for( unsigned int pvi = 0; pvi < 3; ++pvi )
{
int nVertexIndex = pFBXMesh->GetPolygonVertex(pi, pvi);
if( nVertexIndex < 0 || nVertexIndex >= nVertexCount )
continue;
// Material
if( pMaterial == NULL )
pMaterial = GetMaterialLinkedWithPolygon(pFBXMesh, 0, pi, 0, nVertexIndex);
// Position
FbxVector4 fbxPosition = aControlPoints[nVertexIndex];
// Normals And Tangents
FbxVector4 fbxNormal, fbxTangent;
fbxNormal = GetNormal(pFBXMesh, 0, pi, pvi, nVertexIndex);
fbxTangent = GetTangent(pFBXMesh, 0, pi, pvi, nVertexIndex);
// Add Vertex
pModel->AddVertex(pMaterial, FbxVector4ToBTHFBX_VEC3(fbxPosition),
FbxVector4ToBTHFBX_VEC3(fbxNormal),
FbxVector4ToBTHFBX_VEC3(fbxTangent),
GetTexCoord(pFBXMesh, 0, pi, pvi, nVertexIndex),
boneWeights[nVertexIndex]);
// Update Bounding Box
UpdateBoundingBoxDataFromVertex(FbxVector4ToBTHFBX_VEC3(fbxPosition));
}
}
// Geometric Offset
pModel->SetGeometricOffset2(GetGeometricOffset2(pNode));
// Insert Model
m_Models.Add(pModel->GetName(), pModel);
}
void MeshImporter::LoadNodeMesh(FbxNode* node, ID3D11Device3* device,
ID3D11DeviceContext3* context)
{
unsigned int numPolygons = 0;
unsigned int numVertices = 0;
unsigned int numIndices = 0;
unsigned int numPolygonVert = 0;
if (node->GetNodeAttribute() != NULL &&
node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eMesh)
{
//PrintNode(node);
// Create meshes
FbxMesh* fbxMesh = node->GetMesh();
numPolygons = fbxMesh->GetPolygonCount();
numIndices = fbxMesh->GetPolygonVertexCount();
numVertices = fbxMesh->GetControlPointsCount();
// Do not use indexed drawing method
numVertices = numIndices;
vector<Vertex> vertices(numVertices);
vector<unsigned int> indices(numIndices);
numPolygonVert = 3;
//assert(numPolygonVert == 3);
FbxVector4* controlPoints = fbxMesh->GetControlPoints();
int* indices_array = fbxMesh->GetPolygonVertices();
// Need to be changed for optimization
for (unsigned int i = 0; i < numIndices; i++)
{
indices[i] = indices_array[i];
vertices[i].pos.x = (float)fbxMesh->GetControlPointAt(indices[i]).mData[0];// / 1000.0f;
vertices[i].pos.y = (float)fbxMesh->GetControlPointAt(indices[i]).mData[1];// / 1000.0f;
vertices[i].pos.z = (float)fbxMesh->GetControlPointAt(indices[i]).mData[2];// / 1000.0f;
}
// For indexed drawing
/*for (unsigned int i = 0; i < numVertices; i++)
{
vertices[i].pos.x = (float)controlPoints[i].mData[0];
vertices[i].pos.y = (float)controlPoints[i].mData[1];
vertices[i].pos.z = (float)controlPoints[i].mData[2];
}*/
LoadUV(fbxMesh, &vertices[0], &indices[0]);
//OutputDebugStringA(("\n number of polygons: " + to_string(numPolygons) + " \n").c_str());
//OutputDebugStringA(("\n number of indices: " + to_string(numIndices) + " \n").c_str());
//OutputDebugStringA(("\n number of vertices: " + to_string(vertices.size()) + " \n").c_str());
// Read mesh base transform matrix
FbxAMatrix fbxGlobalMeshBaseMatrix = node->EvaluateGlobalTransform().Inverse().Transpose();
XMFLOAT4X4 globalMeshBaseMatrix;
for (int r = 0; r < 4; r++)
{
//PrintTab("Global mesh base mat: " + to_string(fbxGlobalMeshBaseMatrix.mData[r][0]));
for (int c = 0; c < 4; c++)
{
globalMeshBaseMatrix.m[r][c] = (float)fbxGlobalMeshBaseMatrix.mData[r][c];
}
}
// To be considered when importing Maya fbx model
//FbxAMatrix geoMatrix = GetTransformMatrix(node);
//ConvertFbxAMatrixToDXMatrix(&globalMeshBaseMatrix, fbxGlobalMeshBaseMatrix);
MeshEntry mesh;
mesh.vertices = vertices;
mesh.indices = indices;
mesh.numVertices = numVertices;
mesh.numIndices = numIndices;
mesh.fbxNode = node;
mesh.globalMeshBaseMatrix = globalMeshBaseMatrix;
// Load materials and textures
LoadMaterials(node, &mesh, device, context);
// Load weights
LoadWeight(fbxMesh, &mesh);
// Set to be clockwise, must be done after reading uvs, normals, weights and etc
for (auto it = mesh.vertices.begin(); it != mesh.vertices.end(); it += 3)
{
swap(*it, *(it + 2));
}
model->entries.push_back(mesh);
}
int numChild = node->GetChildCount();
for (int i = 0; i < numChild; i++)
{
LoadNodeMesh(node->GetChild(i), device, context);
}
}
MeshData* FBXImporter::GetMeshInfo()
{
mMeshData = new MeshData();
int indicesIndexOffset = 0; // 记录当前mesh在整个ib中的索引位移。
int verticesIndexOffset = 0; // 记录当前mesh在整个vb中的顶点位移。
for (int meshIndex = 0; meshIndex < mFBXMeshDatas.size(); meshIndex++)
{
FbxMesh* mesh = mFBXMeshDatas[meshIndex]->mMesh;
FBXMeshData* fbxMeshData = mFBXMeshDatas[meshIndex];
fbxMeshData->mVerticesCount = mesh->GetControlPointsCount();
fbxMeshData->mIndicesCount = mesh->GetPolygonVertexCount();
fbxMeshData->mTrianglesCount = mesh->GetPolygonCount();
// 获取3dsmax中的全局变换矩阵，稍后可以在DX中还原。
FbxMatrix gloableTransform = mesh->GetNode()->EvaluateGlobalTransform();
FbxAMatrix matrixGeo;
matrixGeo.SetIdentity();
const FbxVector4 lT = mesh->GetNode()->GetGeometricTranslation(FbxNode::eSourcePivot);
const FbxVector4 lR = mesh->GetNode()->GetGeometricRotation(FbxNode::eSourcePivot);
const FbxVector4 lS = mesh->GetNode()->GetGeometricScaling(FbxNode::eSourcePivot);
matrixGeo.SetT(lT);
matrixGeo.SetR(lR);
matrixGeo.SetS(lS);
FbxAMatrix matrixL2W;
matrixL2W.SetIdentity();
matrixL2W = mesh->GetNode()->EvaluateGlobalTransform();
matrixL2W *= matrixGeo;
XMMATRIX globalTransform = XMLoadFloat4x4(&fbxMeshData->globalTransform);
FbxMatrixToXMMATRIX(globalTransform, matrixL2W);
XMStoreFloat4x4(&fbxMeshData->globalTransform, globalTransform);
// 读取顶点。
ReadVertices(fbxMeshData);
// 读取索引。
ReadIndices(fbxMeshData);
// 先读取网格对应的材质索引信息，以便优化稍后纹理读取。
// 一个网格可能只对应一个materialId，也可能对应多个materialId(3dsmax里的Multi/Sub-Object材质)。
// 如果只对应一个材质，简单的读取就行，不过普遍情况可能是为了优化渲染合并mesh从而拥有多材质。
// 这个函数调用完毕我们会得到materialId和拥有这个materialId的三角形列表(三角形编号列表)，保存在vector<MaterialIdOffset>的容器中。
//struct Material
//{
// Material() {}
// Material(int id, string diffuse, string normalMap)
// : materialId(id),
// diffuseTextureFile(diffuse),
// normalMapTextureFile(normalMap)
// {}
//
// int materialId;
// string diffuseTextureFile;
// string normalMapTextureFile;
//};
// struct MaterialIdOffset
//{
// MaterialIdOffset()
// : polygonCount(0)
// {}
// int polygonCount;
// Material material;
//};
ConnectMaterialsToMesh(mesh, fbxMeshData->mTrianglesCount);
// 根据ConnectMaterialsToMesh得到的信息读取材质纹理信息，同样存入vector<MaterialIdOffset>容器。
LoadMaterials(fbxMeshData);
int triangleCount = mesh->GetPolygonCount();
int controlPointIndex = 0;
int normalIndex = 0;
fbxMeshData->mUVs.resize(fbxMeshData->mIndicesCount, XMFLOAT2(-1.0f, -1.0f));
// Extract normals and uvs from FbxMesh.
for (int i = 0; i < triangleCount; i++)
{
int polygonSize = mesh->GetPolygonSize(i);
for (int j = 0; j < polygonSize; j++)
{
controlPointIndex = mesh->GetPolygonVertex(i, j);
ReadNormals(fbxMeshData, controlPointIndex, normalIndex);
// 有纹理我们才读取uv，tangent以及binormal。
if (fbxMeshData->hasDiffuseTexture())
{
ReadUVs(fbxMeshData, controlPointIndex, normalIndex, mesh->GetTextureUVIndex(i, j), 0);
ReadTangents(fbxMeshData, controlPointIndex, normalIndex);
ReadBinormals(fbxMeshData, controlPointIndex, normalIndex);
}
normalIndex++;
}
}
SplitVertexByNormal(fbxMeshData);
if (fbxMeshData->hasDiffuseTexture())
{
SplitVertexByUV(fbxMeshData);
}
else
{
fbxMeshData->mUVs.resize(fbxMeshData->mVerticesCount);
}
if (fbxMeshData->hasNormalMapTexture())
{
SplitVertexByTangent(fbxMeshData);
SplitVertexByBinormal(fbxMeshData);
}
else
{
fbxMeshData->mTangents.resize(fbxMeshData->mVerticesCount);
fbxMeshData->mBinormals.resize(fbxMeshData->mVerticesCount);
}
// 如果.fbx包含一个以上的mesh，需要计算当前FBXMeshData的索引在全局索引中的位置。
for (int i = 0; i < fbxMeshData->mIndicesCount; i++)
{
fbxMeshData->mIndices[i] = fbxMeshData->mIndices[i] + verticesIndexOffset;
}
mMeshData->verticesCount += fbxMeshData->mVerticesCount;
mMeshData->indicesCount += fbxMeshData->mIndicesCount;
mMeshData->meshesCount++;
// 多材质的情况。
// 根据之前填充的materialIdOffsets容器保存的materialId和三角形的对应关系，
// 计算每个RenderPackage渲染所需的索引数量和索引起始位置(偏移)。
if (isByPolygon && fbxMeshData->hasDiffuseTexture())
{
vector<MaterialIdOffset> materialIdOffsets = mMeshData->materialIdOffsets;
for (int i = 0; i < materialIdOffsets.size(); i++)
{
RenderPackage renderPacakge;
renderPacakge.globalTransform = fbxMeshData->globalTransform;
renderPacakge.indicesCount = materialIdOffsets[i].polygonCount * 3;
if (i == 0)
{
renderPacakge.indicesOffset = indicesIndexOffset;
}
else
{
renderPacakge.indicesOffset += indicesIndexOffset;
}
renderPacakge.material = materialIdOffsets[i].material;
mMeshData->renderPackages.push_back(renderPacakge);
indicesIndexOffset += renderPacakge.indicesCount;
}
}
else
// 单一材质的情况。
{
RenderPackage renderPackage;
renderPackage.indicesCount = fbxMeshData->mIndicesCount;
renderPackage.indicesOffset = indicesIndexOffset;
renderPackage.material = fbxMeshData->mMaterial;
renderPackage.globalTransform = fbxMeshData->globalTransform;
mMeshData->renderPackages.push_back(renderPackage);
indicesIndexOffset += fbxMeshData->mIndices.size();
}
verticesIndexOffset += fbxMeshData->mVertices.size();
// 将当前mesh的数据追加到全局数据容器。
Merge(mMeshData->vertices, fbxMeshData->mVertices);
Merge(mMeshData->indices, fbxMeshData->mIndices);
Merge(mMeshData->normals, fbxMeshData->mNormals);
Merge(mMeshData->uvs, fbxMeshData->mUVs);
Merge(mMeshData->tangents, fbxMeshData->mTangents);
Merge(mMeshData->binormals, fbxMeshData->mBinormals);
mMeshData->materialIdOffsets.clear();
}
clear();
return mMeshData;
}
void MeshImporter::LoadNodeMesh(FbxNode* node, ID3D11Device3* device,
ID3D11DeviceContext3* context)
{
unsigned int numPolygons = 0;
unsigned int numVertices = 0;
unsigned int numIndices = 0;
unsigned int numPolygonVert = 0;
if (node->GetNodeAttribute() != NULL &&
node->GetNodeAttribute()->GetAttributeType() == FbxNodeAttribute::eMesh)
{
//PrintNode(node);
// Create meshes
FbxMesh* fbxMesh = node->GetMesh();
numPolygons = fbxMesh->GetPolygonCount();
numIndices = fbxMesh->GetPolygonVertexCount();
numVertices = fbxMesh->GetControlPointsCount();
// Do not use indexed drawing method
numVertices = numIndices;
vector<Vertex> vertices(numVertices);
vector<unsigned int> indices(numIndices);
numPolygonVert = 3;
//assert(numPolygonVert == 3);
FbxVector4* controlPoints = fbxMesh->GetControlPoints();
int* indices_array = fbxMesh->GetPolygonVertices();
// Need to be changed for optimization
for (unsigned int i = 0; i < numIndices; i++)
{
indices[i] = indices_array[i];
vertices[i].pos.x = (float)fbxMesh->GetControlPointAt(indices[i]).mData[0] / 10000.0f;
vertices[i].pos.y = (float)fbxMesh->GetControlPointAt(indices[i]).mData[1] / 10000.0f;
vertices[i].pos.z = (float)fbxMesh->GetControlPointAt(indices[i]).mData[2] / 10000.0f;
}
// For indexed drawing
/*for (unsigned int i = 0; i < numVertices; i++)
{
vertices[i].pos.x = (float)controlPoints[i].mData[0];// / 25.0f;
vertices[i].pos.y = (float)controlPoints[i].mData[1];// / 25.0f;
vertices[i].pos.z = (float)controlPoints[i].mData[2];// / 25.0f;
}*/
LoadUV(fbxMesh, &vertices[0], &indices[0]);
// Set to be clockwise, must be done after reading uvs and normals
for (auto it = vertices.begin(); it != vertices.end(); it += 3)
{
std::swap(*it, *(it + 2));
}
//OutputDebugStringA(("\n number of polygons: " + to_string(numPolygons) + " \n").c_str());
//OutputDebugStringA(("\n number of indices: " + to_string(numIndices) + " \n").c_str());
//OutputDebugStringA(("\n number of vertices: " + to_string(vertices.size()) + " \n").c_str());
ModelObj::MeshEntry mesh;
mesh.vertices = vertices;
mesh.indices = indices;
mesh.numVertices = numVertices;
mesh.numIndices = numIndices;
LoadMaterials(node, &mesh, device, context);
model->entries.push_back(mesh);
}
for (int i = 0; i < node->GetChildCount(); i++)
{
LoadNodeMesh(node->GetChild(i), device, context);
}
}
HRESULT FBXLoader::loadFBXFile(char* filePath, VertexBuffer** vBuf, IndexBuffer** iBuf, Renderer* renderer, bool centerShift)
{
if (g_pFbxSdkManager == nullptr)
{
g_pFbxSdkManager = FbxManager::Create();
FbxIOSettings* pIOsettings = FbxIOSettings::Create(g_pFbxSdkManager, IOSROOT);
g_pFbxSdkManager->SetIOSettings(pIOsettings);
}
this->shiftCenter = centerShift;
FbxImporter* pImporter = FbxImporter::Create(g_pFbxSdkManager, "");
FbxScene* pFbxScene = FbxScene::Create(g_pFbxSdkManager, "");
bool bSuccess = pImporter->Initialize(filePath, -1, g_pFbxSdkManager->GetIOSettings());
if (!bSuccess) return E_FAIL;
bSuccess = pImporter->Import(pFbxScene);
if (!bSuccess) return E_FAIL;
FbxAxisSystem sceneAxisSystem = pFbxScene->GetGlobalSettings().GetAxisSystem();
FbxAxisSystem DirectXAxisSystem(FbxAxisSystem::eYAxis, FbxAxisSystem::eParityOdd, FbxAxisSystem::eLeftHanded);
if (sceneAxisSystem != DirectXAxisSystem)
{
DirectXAxisSystem.ConvertScene(pFbxScene);
}
pImporter->Destroy();
FbxNode* pFbxRootNode = pFbxScene->GetRootNode();
if (pFbxRootNode)
{
// Check if the getChildCount is > 1 TODO
int test = pFbxRootNode->GetChildCount();
for (int i = 0; i < pFbxRootNode->GetChildCount(); i++)
{
FbxNode* pFbxChildNode = pFbxRootNode->GetChild(i);
if (pFbxChildNode->GetNodeAttribute() == NULL)
continue;
FbxNodeAttribute::EType AttributeType = pFbxChildNode->GetNodeAttribute()->GetAttributeType();
if (AttributeType != FbxNodeAttribute::eMesh)
continue;
FbxMesh* pMesh = (FbxMesh*)pFbxChildNode->GetNodeAttribute();
int numControlPoints = pMesh->GetControlPointsCount();
bool initial = true;
float xMin, yMin, zMin;
float xMax, yMax, zMax;
float xIn, yIn, zIn;
float xCenter, yCenter, zCenter;
if (this->shiftCenter){
for (int c = 0; c < numControlPoints; c++) {
xIn = (float)pMesh->GetControlPointAt(c).mData[0];
yIn = (float)pMesh->GetControlPointAt(c).mData[1];
zIn = (float)pMesh->GetControlPointAt(c).mData[2];
if (initial) {
xMin = xIn;
yMin = yIn;
zMin = zIn;
xMax = xIn;
yMax = yIn;
zMax = zIn;
initial = false;
}
else {
if (xIn < xMin) {
xMin = xIn;
}
if (yIn < yMin) {
yMin = yIn;
}
if (zIn < zMin) {
zMin = zIn;
}
if (xIn > xMax) {
xMax = xIn;
}
if (yIn > yMax) {
yMax = yIn;
}
if (zIn > zMax) {
zMax = zIn;
}
}
}
xCenter = (xMin + xMax) / 2.0f;
yCenter = (yMin + yMax) / 2.0f;
zCenter = (zMin + zMax) / 2.0f;
}
else {
xCenter = 0;
yCenter = 0;
zCenter = 0;
}
FbxVector4* pVertices = pMesh->GetControlPoints();
int vertexCount = pMesh->GetPolygonVertexCount();
//Vertex vertex;
Vertex* vertexArray = new Vertex[vertexCount];
//Vertex vertexArray[2592];
int numIndices = vertexCount;
unsigned int* indexArray = new unsigned int[numIndices];
FbxVector4 fbxNorm(0, 0, 0, 0);
FbxVector2 fbxUV(0, 0);
bool isMapped;
int vertexIndex = 0;
// Loop iterates through the polygons and fills the vertex and index arrays for the buffers
for (int j = 0; j < pMesh->GetPolygonCount(); j++)
{
int iNumVertices = pMesh->GetPolygonSize(j);
assert(iNumVertices == 3);
//1st vertex
int controlIndex = pMesh->GetPolygonVertex(j, 2);
pMesh->GetPolygonVertexUV(j, 2, "map1", fbxUV, isMapped);
pMesh->GetPolygonVertexNormal(j, 2, fbxNorm);
vertexArray[vertexIndex].point[0] = (float)pVertices[controlIndex].mData[0] - xCenter;
vertexArray[vertexIndex].point[1] = (float)pVertices[controlIndex].mData[1] - yCenter;
vertexArray[vertexIndex].point[2] = -(float)pVertices[controlIndex].mData[2] - zCenter;
vertexArray[vertexIndex].texCoord[0] = (float)fbxUV[0];
vertexArray[vertexIndex].texCoord[1] = 1.0f - (float)fbxUV[1];
vertexArray[vertexIndex].normal[0] = (float)fbxNorm[0];
vertexArray[vertexIndex].normal[1] = (float)fbxNorm[1];
vertexArray[vertexIndex].normal[2] = -(float)fbxNorm[2];
indexArray[vertexIndex] = vertexIndex;
vertexIndex++;
//2nd vertex
controlIndex = pMesh->GetPolygonVertex(j, 1);
pMesh->GetPolygonVertexUV(j, 1, "map1", fbxUV, isMapped);
pMesh->GetPolygonVertexNormal(j, 1, fbxNorm);
vertexArray[vertexIndex].point[0] = (float)pVertices[controlIndex].mData[0] - xCenter;
vertexArray[vertexIndex].point[1] = (float)pVertices[controlIndex].mData[1] - yCenter;
vertexArray[vertexIndex].point[2] = -(float)pVertices[controlIndex].mData[2] - zCenter;
vertexArray[vertexIndex].texCoord[0] = (float)fbxUV[0];
vertexArray[vertexIndex].texCoord[1] = 1.0f - (float)fbxUV[1];
vertexArray[vertexIndex].normal[0] = (float)fbxNorm[0];
vertexArray[vertexIndex].normal[1] = (float)fbxNorm[1];
vertexArray[vertexIndex].normal[2] = -(float)fbxNorm[2];
indexArray[vertexIndex] = vertexIndex;
vertexIndex++;
//3rd vertex
controlIndex = pMesh->GetPolygonVertex(j, 0);
pMesh->GetPolygonVertexUV(j, 0, "map1", fbxUV, isMapped);
pMesh->GetPolygonVertexNormal(j, 0, fbxNorm);
vertexArray[vertexIndex].point[0] = (float)pVertices[controlIndex].mData[0] - xCenter;
vertexArray[vertexIndex].point[1] = (float)pVertices[controlIndex].mData[1] - yCenter;
vertexArray[vertexIndex].point[2] = -(float)pVertices[controlIndex].mData[2] - zCenter;
vertexArray[vertexIndex].texCoord[0] = (float)fbxUV[0];
vertexArray[vertexIndex].texCoord[1] = 1.0f - (float)fbxUV[1];
vertexArray[vertexIndex].normal[0] = (float)fbxNorm[0];
vertexArray[vertexIndex].normal[1] = (float)fbxNorm[1];
vertexArray[vertexIndex].normal[2] = -(float)fbxNorm[2];
indexArray[vertexIndex] = vertexIndex;
vertexIndex++;
}
// Generate vertex and index buffers from the vertex and index arrays
*vBuf = renderer->createVertexBuffer(vertexArray, vertexCount);
*iBuf = renderer->createIndexBuffer(indexArray, numIndices);
delete[] vertexArray;
delete[] indexArray;
}
}
return S_OK;
}
void fbxLoader2::processMesh(FbxNode* node)
{
FbxMesh* mesh = node->GetMesh();
this->readAnimationWeigths(mesh);
if(mesh!=NULL && mesh->IsTriangleMesh())
{
for (int i = 0; i<mesh->GetControlPointsCount(); i++)
{
readVertex(mesh, i, &vertex[i]);
vertexArray[i].position = D3DXVECTOR3(vertex[i]);
}
int a = mesh->GetPolygonVertexCount();
for (int i = 0; i<mesh->GetPolygonVertexCount(); i++)
{
readUV(mesh, i, 0, &uv[i]);
readNormal(mesh, i, &normal[i]);
indices[i].indice = mesh->GetPolygonVertices()[i];
indices[i].normal1 = normal[i];
indices[i].uv1 = uv[i];
indicesMeshCount++;
}
}
//vertexLists.push_back(vertexArray);
indiceLists.push_back(indices);
FbxAnimStack* pAnimStack = FbxCast<FbxAnimStack>(scene->GetSrcObject(FBX_TYPE(FbxAnimStack)));
int numAnimLayers = pAnimStack->GetMemberCount(FBX_TYPE(FbxAnimLayer));
this->setBindPoseCluster(node);
for (int i = 0; i < numAnimLayers; i++)
{
FbxAnimLayer* pAnimLayer = pAnimStack->GetMember(FBX_TYPE(FbxAnimLayer), i);
FbxAnimCurve* animCv = this->findSkeletonRootBone(scene->GetRootNode())->GetChild(0)->LclTranslation.GetCurve(pAnimLayer, FBXSDK_CURVENODE_COMPONENT_X);
if (animCv)
{
FbxTimeSpan animationLength;
int p = animCv->KeyGetCount();
animCv->GetTimeInterval(animationLength);
for(int j = 0; j<animationStructure->GetFramesNumber();j++)
{
FbxTime timeKey = animCv->KeyGet(j).mTime;
//FbxTime interval = (duration/p)*j + animationLength.GetStart();
//int intervalVal = (duration.GetSecondCount()/p)*j + animationLength.GetStart().GetSecondCount();
const FbxTime pTime = animCv->KeyGet(j).mTime;
FbxAMatrix pGlobalPos = GetGlobalPosition(node, pTime, scene->GetPose(j));
ComputeSkinDeformation(pGlobalPos, mesh, timeKey, scene->GetPose(j), j);
}
}
}
for(int i = 0; i<node->GetChildCount(); i++)
{
processMesh(node->GetChild(i));
}
}
void importFBXNode(
FbxNode *node,
vector<Vector3> &vertices,
vector<Color> &colors,
vector<Vector2> &uvs,
vector<Vector3> &normals,
vector<uint32> &elements) {
FbxNode *childNode = 0;
int numKids = node->GetChildCount();
for ( int i=0 ; i<numKids ; i++)
{
childNode = node->GetChild(i);
FbxMesh *mesh = childNode->GetMesh();
if ( mesh != NULL )
{
auto offset = node->GetGeometricTranslation(FbxNode::eSourcePivot);
//================= Get Vertices ====================================
int baseline = vertices.size();
int numVerts = mesh->GetControlPointsCount();
for ( int j=0; j<numVerts; j++)
{
FbxVector4 vert = mesh->GetControlPointAt(j);
vertices.push_back(
Vector3(vert.mData[0], vert.mData[1], vert.mData[2])
/*+ Vector3(offset.mData[0], offset.mData[1], offset.mData[2])*/);
colors.push_back(Vector3(1, 1, 1));
uvs.push_back(Vector2(0, 0));
}
//================= Get Indices ====================================
int numIndices=mesh->GetPolygonVertexCount();
int *indicesRaw = mesh->GetPolygonVertices();
for (int j = 0; j < numIndices; j++) {
elements.push_back(indicesRaw[j] + baseline);
}
int cnt = 0;
int polygonCount = mesh->GetPolygonCount();
for (int j = 0; j < polygonCount; ++j) {
FbxLayerElementArrayTemplate<FbxVector2>* uvVertices= 0;
mesh->GetTextureUV(&uvVertices, FbxLayerElement::eTextureDiffuse);
for (int k = 0; k < mesh->GetPolygonSize(j); ++k) {
FbxVector2 uv = (*uvVertices)[mesh->GetTextureUVIndex(j, k)];
uvs[indicesRaw[cnt] + baseline].x = uv[0];
uvs[indicesRaw[cnt] + baseline].y = uv[1];
cnt++;
}
}
}
importFBXNode(childNode, vertices, colors, uvs, normals, elements);
}
}
void FbxLoader::LoadAttribute(FbxNodeAttribute* pAttribute)
{
if (pAttribute->GetAttributeType() == FbxNodeAttribute::eMesh)
{
FbxMesh* pMesh = (FbxMesh*)pAttribute;
FbxVector4* IControlPoints = pMesh->GetControlPoints();
m_vertexCount = pMesh->GetControlPointsCount();
m_vertexBuffer = new float[m_vertexCount * 4];
for (int i = 0; i < m_vertexCount * 4; i+=4)
{
m_vertexBuffer[i] = (float)IControlPoints[i / 4].mData[0];
m_vertexBuffer[i + 1] = (float)IControlPoints[i / 4].mData[1];
m_vertexBuffer[i + 2] = (float)IControlPoints[i / 4].mData[2];
m_vertexBuffer[i + 3] = 1.0f;// IControlPoints[i / 4].mData[3];
}
int* pIndices = pMesh->GetPolygonVertices();
m_indexCount = pMesh->GetPolygonVertexCount();
m_indexBuffer = new uint32[m_indexCount];
for (int i = 0; i < m_indexCount; ++i)
{
m_indexBuffer[i] = pIndices[i];
}
FbxLayer* pLayer = pMesh->GetLayer(0);
if (pLayer != NULL)
{
FbxLayerElementNormal* pNormal = pLayer->GetNormals();
m_normalCount = pNormal->mDirectArray->GetCount();
m_normalBuffer = new float[m_normalCount * 3];
for (int i = 0; i < m_normalCount * 3; i+=3)
{
m_normalBuffer[i] = (float)(*pNormal->mDirectArray)[i / 3][0];
m_normalBuffer[i + 1] = (float)(*pNormal->mDirectArray)[i / 3][1];
m_normalBuffer[i + 2] = (float)(*pNormal->mDirectArray)[i / 3][2];
//m_normalBuffer[i + 3] = (*pNormal->mDirectArray)[i / 4][3];
}
FbxLayerElementUV* pUV = pLayer->GetUVs();
if (pUV->GetMappingMode() == FbxLayerElement::eByPolygonVertex)
{
if (pUV->GetReferenceMode() == FbxLayerElement::eIndexToDirect)
{
m_uvCount = pUV->mIndexArray->GetCount();
m_uvBuffer = new float[m_uvCount * 2];
for (int i = 0; i < m_uvCount * 2; i+=2)
{
m_uvBuffer[i] = (float)(*pUV->mDirectArray)[(*pUV->mIndexArray)[i / 2]][0];
m_uvBuffer[i + 1] = (float)(*pUV->mDirectArray)[(*pUV->mIndexArray)[i / 2]][1];
}
}
else
{
m_uvCount = pUV->mDirectArray->GetCount();
m_uvBuffer = new float[m_uvCount * 2];
for (int i = 0; i < m_uvCount * 2; i += 2)
{
m_uvBuffer[i] = (float)(*pUV->mDirectArray)[i / 2][0];
m_uvBuffer[i + 1] = (float)(*pUV->mDirectArray)[i / 2][1];
}
}
}
else
{
if (pUV->GetReferenceMode() == FbxLayerElement::eIndexToDirect)
{
m_uvCount = pUV->mIndexArray->GetCount();
m_uvBuffer = new float[m_uvCount * 2];
for (int i = 0; i < m_uvCount * 2; i+=2)
{
m_uvBuffer[i] = (float)(*pUV->mDirectArray)[(*pUV->mIndexArray)[i / 2]][0];
m_uvBuffer[i + 1] = (float)(*pUV->mDirectArray)[(*pUV->mIndexArray)[i / 2]][1];
}
}
else
{
m_uvCount = pUV->mDirectArray->GetCount();
m_uvBuffer = new float[m_uvCount * 2];
for (int i = 0; i < m_uvCount * 2; i+=2)
{
m_uvBuffer[i] = (float)(*pUV->mDirectArray)[i / 2][0];
m_uvBuffer[i + 1] = (float)(*pUV->mDirectArray)[i / 2][1];
}
}
}
}
}
}
