void LoaderFbxMesh::parseVertexBinormals(FbxMesh* mesh, int controlPointIndex, int vertexId)
{
for(int i=0; i<mesh->GetElementBinormalCount(); i++)
{
FbxVector4 fbxBinormal(0, 0, 0, 0);
FbxGeometryElementBinormal* binormalElement = mesh->GetElementBinormal(i);
switch(binormalElement->GetMappingMode())
{
case FbxGeometryElement::eByControlPoint:
fbxBinormal = parseVertexBinormalsByControlPoint(binormalElement, controlPointIndex);
break;
case FbxGeometryElement::eByPolygonVertex:
fbxBinormal = parseVertexBinormalsByPolygonVertex(binormalElement, vertexId);
break;
default:
break;
}
Float4 binormal;
binormal.x = static_cast<float>(fbxBinormal.mData[0]);
binormal.y = static_cast<float>(fbxBinormal.mData[1]);
binormal.z = static_cast<float>(fbxBinormal.mData[2]);
binormal.w = static_cast<float>(fbxBinormal.mData[3]);
vertexBinormals_.push_back(binormal);
}
}
void FBXImporter::ReadBinormals(FBXMeshData* fbxMeshData, int controlPointIndex, int tangentIndex)
{
FbxMesh* mesh = fbxMeshData->mMesh;
if (mesh->GetElementTangentCount() < 1)
{
return;
}
FbxGeometryElementBinormal* binormalElement = mesh->GetElementBinormal(0);
switch (binormalElement->GetMappingMode())
{
case FbxGeometryElement::eByControlPoint:
{
switch (binormalElement->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
FbxVector4 fbxBinormal = binormalElement->GetDirectArray().GetAt(controlPointIndex);
XMFLOAT3 binormal;
binormal.x = static_cast<float>(fbxBinormal[0]);
binormal.y = static_cast<float>(fbxBinormal[1]);
binormal.z = static_cast<float>(fbxBinormal[2]);
fbxMeshData->mBinormals.push_back(binormal);
}
break;
case FbxGeometryElement::eIndexToDirect:
{
int id = binormalElement->GetIndexArray().GetAt(controlPointIndex);
FbxVector4 fbxBinormal = binormalElement->GetDirectArray().GetAt(id);
XMFLOAT3 binormal;
binormal.x = static_cast<float>(fbxBinormal[0]);
binormal.y = static_cast<float>(fbxBinormal[1]);
binormal.z = static_cast<float>(fbxBinormal[2]);
fbxMeshData->mBinormals.push_back(binormal);
}
break;
default:
break;
}
}
case FbxGeometryElement::eByPolygonVertex:
{
switch (binormalElement->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
FbxVector4 fbxBinormal = binormalElement->GetDirectArray().GetAt(tangentIndex);
XMFLOAT3 binormal;
binormal.x = static_cast<float>(fbxBinormal[0]);
binormal.y = static_cast<float>(fbxBinormal[1]);
binormal.z = static_cast<float>(fbxBinormal[2]);
fbxMeshData->mBinormals.push_back(binormal);
}
break;
case FbxGeometryElement::eIndexToDirect:
{
int id = binormalElement->GetIndexArray().GetAt(tangentIndex);
FbxVector4 fbxBinormal = binormalElement->GetDirectArray().GetAt(id);
XMFLOAT3 binormal;
binormal.x = static_cast<float>(fbxBinormal[0]);
binormal.y = static_cast<float>(fbxBinormal[1]);
binormal.z = static_cast<float>(fbxBinormal[2]);
fbxMeshData->mBinormals.push_back(binormal);
}
break;
default:
break;
}
}
break;
default:
break;
}
}
void loadBinormal(FbxMesh* fbxMesh, int vertexIndex, int controlPointIndex, Vertex* vertex)
{
if (fbxMesh->GetElementBinormalCount() > 0)
{
// Get only the first binormal.
FbxGeometryElementBinormal* binormal = fbxMesh->GetElementBinormal(0);
FbxGeometryElement::EMappingMode mappingMode = binormal->GetMappingMode();
if (mappingMode == FbxGeometryElement::eByControlPoint)
{
switch (binormal->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
FbxVector4 vec4 = binormal->GetDirectArray().GetAt(controlPointIndex);
vertex->hasBinormal = true;
vertex->binormal.x = (float)vec4[0];
vertex->binormal.y = (float)vec4[1];
vertex->binormal.z = (float)vec4[2];
}
break;
case FbxGeometryElement::eIndexToDirect:
{
int id = binormal->GetIndexArray().GetAt(controlPointIndex);
FbxVector4 vec4 = binormal->GetDirectArray().GetAt(id);
vertex->hasBinormal = true;
vertex->binormal.x = (float)vec4[0];
vertex->binormal.y = (float)vec4[1];
vertex->binormal.z = (float)vec4[2];
}
break;
default:
break;
}
}
else if (mappingMode == FbxGeometryElement::eByPolygonVertex)
{
switch (binormal->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
FbxVector4 vec4 = binormal->GetDirectArray().GetAt(vertexIndex);
vertex->hasBinormal = true;
vertex->binormal.x = (float)vec4[0];
vertex->binormal.y = (float)vec4[1];
vertex->binormal.z = (float)vec4[2];
}
break;
case FbxGeometryElement::eIndexToDirect:
{
int id = binormal->GetIndexArray().GetAt(vertexIndex);
FbxVector4 vec4 = binormal->GetDirectArray().GetAt(id);
vertex->hasBinormal = true;
vertex->binormal.x = (float)vec4[0];
vertex->binormal.y = (float)vec4[1];
vertex->binormal.z = (float)vec4[2];
}
break;
default:
break;
}
}
}
}
//===============================================================================================================================
bool FBXLoader::LoadVertexBinormal(FbxMesh* mesh, int inCtrlPointIndex, int inVertexCounter, int binormalElement, XMFLOAT3& outBinormal)
{
if (mesh->GetElementBinormalCount() < 1)
{
throw std::exception("Invalid Binormal Number");
}
int directIndex = -1;
FbxGeometryElementBinormal* vertexBinormal = mesh->GetElementBinormal(binormalElement);
switch (vertexBinormal->GetMappingMode())
{
case FbxGeometryElement::eByControlPoint:
{
switch (vertexBinormal->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
directIndex = inCtrlPointIndex;
//outBinormal.x = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inCtrlPointIndex).mData[0]);
//outBinormal.y = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inCtrlPointIndex).mData[1]);
//outBinormal.z = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inCtrlPointIndex).mData[2]);
}
break;
case FbxGeometryElement::eIndexToDirect:
{
directIndex = vertexBinormal->GetIndexArray().GetAt(inCtrlPointIndex);
//int index = vertexBinormal->GetIndexArray().GetAt(inCtrlPointIndex);
//outBinormal.x = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[0]);
//outBinormal.y = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[1]);
//outBinormal.z = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[2]);
}
break;
default: throw std::exception("Invalid Reference");
}
}
break;
case FbxGeometryElement::eByPolygonVertex:
{
switch (vertexBinormal->GetReferenceMode())
{
case FbxGeometryElement::eDirect:
{
directIndex = inVertexCounter;
//outBinormal.x = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inVertexCounter).mData[0]);
//outBinormal.y = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inVertexCounter).mData[1]);
//outBinormal.z = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(inVertexCounter).mData[2]);
}
break;
case FbxGeometryElement::eIndexToDirect:
{
directIndex = vertexBinormal->GetIndexArray().GetAt(inVertexCounter);
//int index = vertexBinormal->GetIndexArray().GetAt(inVertexCounter);
//outBinormal.x = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[0]);
//outBinormal.y = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[1]);
//outBinormal.z = static_cast<float>(vertexBinormal->GetDirectArray().GetAt(index).mData[2]);
}
break;
default: throw std::exception("Invalid Reference");
}
}
break;
}
if (directIndex != -1)
{
FbxVector4 binorm = vertexBinormal->GetDirectArray().GetAt(directIndex);
outBinormal = XMFLOAT3((float)binorm.mData[0], (float)binorm.mData[1], (float)binorm.mData[2]);
return true;
}
return false;
}
