assimp/code/FBXDeformer.cpp

/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

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All rights reserved.

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  following disclaimer.

* Redistributions in binary form must reproduce the above
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  written permission of the assimp team.

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*/

/** @file  FBXNoteAttribute.cpp
 *  @brief Assimp::FBX::NodeAttribute (and subclasses) implementation
 */

#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER

#include "FBXParser.h"
#include "FBXDocument.h"
#include "FBXImporter.h"
#include "FBXImportSettings.h"
#include "FBXDocumentUtil.h"
#include "FBXProperties.h"
#include <boost/foreach.hpp>

namespace Assimp {
namespace FBX {

	using namespace Util;

// ------------------------------------------------------------------------------------------------
Deformer::Deformer(uint64_t id, const Element& element, const Document& doc, const std::string& name)
	: Object(id,element,name)
{
	const Scope& sc = GetRequiredScope(element);

	const std::string& classname = ParseTokenAsString(GetRequiredToken(element,2));
	props = GetPropertyTable(doc,"Deformer.Fbx" + classname,element,sc,true);
}


// ------------------------------------------------------------------------------------------------
Deformer::~Deformer()
{

}


// ------------------------------------------------------------------------------------------------
Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Deformer(id,element,doc,name)
, node()
{
	const Scope& sc = GetRequiredScope(element);

	const Element* const Indexes = sc["Indexes"];
	const Element* const Weights = sc["Weights"];

	const Element& Transform = GetRequiredElement(sc,"Transform",&element);
	const Element& TransformLink = GetRequiredElement(sc,"TransformLink",&element);

	transform = ReadMatrix(Transform);
	transformLink = ReadMatrix(TransformLink);

	// it is actually possible that there be Deformer's with no weights
	if (!!Indexes != !!Weights) {
		DOMError("either Indexes or Weights are missing from Cluster",&element);
	}

	if(Indexes) {
		ParseVectorDataArray(indices,*Indexes);
		ParseVectorDataArray(weights,*Weights);
	}

	if(indices.size() != weights.size()) {
		DOMError("sizes of index and weight array don't match up",&element);
	}

	// read assigned node
	const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Model");
	BOOST_FOREACH(const Connection* con, conns) {
		const Model* const mod = ProcessSimpleConnection<Model>(*con, false, "Model -> Cluster", element);
		if(mod) {
			node = mod;
			break;
		}
	}

	if (!node) {
		DOMError("failed to read target Node for Cluster",&element);
	}
}


// ------------------------------------------------------------------------------------------------
Cluster::~Cluster()
{

}


// ------------------------------------------------------------------------------------------------
Skin::Skin(uint64_t id, const Element& element, const Document& doc, const std::string& name)
: Deformer(id,element,doc,name)
{
	const Scope& sc = GetRequiredScope(element);

	const Element* const Link_DeformAcuracy = sc["Link_DeformAcuracy"];
	if(Link_DeformAcuracy) {
		accuracy = ParseTokenAsFloat(GetRequiredToken(*Link_DeformAcuracy,0));
	}

	// resolve assigned clusters 
	const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Deformer");

	clusters.reserve(conns.size());
	BOOST_FOREACH(const Connection* con, conns) {

		const Cluster* const cluster = ProcessSimpleConnection<Cluster>(*con, false, "Cluster -> Skin", element);
		if(cluster) {
			clusters.push_back(cluster);
			continue;
		}
	}
}


// ------------------------------------------------------------------------------------------------
Skin::~Skin()
{

}



}
}

#endif