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Added unparsed FBX properties to the aiNode's metadata. This allows the

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user to extract extra/custom/user attributes/properties from the scene
graph. E.g., extracting attributes set under "extra attributes" in Maya.
This commit is contained in:
Frederik Aalund
2014-03-09 16:18:05 +01:00
parent 84b66092d7
commit 9eb8677aba
3 changed files with 73 additions and 15 deletions
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58
code/FBXConverter.cpp
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@@ -46,6 +46,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
#include <iterator>
#include <sstream>
#include <boost/tuple/tuple.hpp>
#include "FBXParser.h"
@@ -94,14 +95,6 @@ public:
TransformationComp_MAXIMUM
};
enum MetadataKeys
{
MetadataKeys_UserProperties = 0,
MetadataKeys_IsNull,
MetadataKeys_MAXIMUM
};
public:
Converter(aiScene* out, const Document& doc)
@@ -760,21 +753,56 @@ private:
void SetupNodeMetadata(const Model& model, aiNode& nd)
{
const PropertyTable& props = model.Props();
DirectPropertyMap unparsedProperties = props.GetUnparsedProperties();
//create metadata on node
// create metadata on node
std::size_t numStaticMetaData = 2;
aiMetadata* data = new aiMetadata();
data->mNumProperties = MetadataKeys_MAXIMUM;
data->mNumProperties = unparsedProperties.size() + numStaticMetaData;
data->mKeys = new aiString[data->mNumProperties]();
data->mValues = new aiString[data->mNumProperties]();
nd.mMetaData = data;
int index = 0;
// find user defined properties
data->mKeys[MetadataKeys_UserProperties].Set("UserProperties");
data->mValues[MetadataKeys_UserProperties].Set(PropertyGet<std::string>(props, "UDP3DSMAX", ""));
// find user defined properties (3ds Max)
data->mKeys[index].Set("UserProperties");
data->mValues[index].Set(PropertyGet<std::string>(props, "UDP3DSMAX", ""));
++index;
// preserve the info that a node was marked as Null node in the original file.
data->mKeys[MetadataKeys_IsNull].Set("IsNull");
data->mValues[MetadataKeys_IsNull].Set(model.IsNull() ? "true" : "false");
data->mKeys[index].Set("IsNull");
data->mValues[index].Set(model.IsNull() ? "true" : "false");
++index;
// add unparsed properties to the node's metadata
BOOST_FOREACH(const DirectPropertyMap::value_type& prop, unparsedProperties) {
// all values are converted to strings using the following stringstream
std::stringstream ss;
bool parse_succeeded = false;
// Interpret the property as a concrete type
if (const TypedProperty<std::string>* interpreted = prop.second->As<TypedProperty<std::string>>())
ss << interpreted->Value();
else if (const TypedProperty<bool>* interpreted = prop.second->As<TypedProperty<bool>>())
ss << interpreted->Value();
else if (const TypedProperty<int>* interpreted = prop.second->As<TypedProperty<int>>())
ss << interpreted->Value();
else if (const TypedProperty<uint64_t>* interpreted = prop.second->As<TypedProperty<uint64_t>>())
ss << interpreted->Value();
else if (const TypedProperty<float>* interpreted = prop.second->As<TypedProperty<float>>())
ss << interpreted->Value();
else if (const TypedProperty<aiVector3D>* interpreted = prop.second->As<TypedProperty<aiVector3D>>())
{
aiVector3D v = interpreted->Value();
ss << v.x << ";" << v.y << ";" << v.z;
}
// add property to meta data
data->mKeys[index].Set(prop.first);
data->mValues[index].Set(ss.str());
++index;
}
}
// ------------------------------------------------------------------------------------------------