virtualx-engine/thirdparty/assimp/code/FBX/FBXModel.cpp

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

Copyright (c) 2006-2019, assimp team


All rights reserved.

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  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
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* Neither the name of the assimp team, nor the names of its
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  written permission of the assimp team.

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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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*/

/** @file  FBXModel.cpp
 *  @brief Assimp::FBX::Model implementation
 */

#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER

#include "FBXParser.h"
#include "FBXMeshGeometry.h"
#include "FBXDocument.h"
#include "FBXImporter.h"
#include "FBXDocumentUtil.h"

namespace Assimp {
namespace FBX {

using namespace Util;

// ------------------------------------------------------------------------------------------------
Model::Model(uint64_t id, const Element& element, const Document& doc, const std::string& name)
    : Object(id,element,name)
    , shading("Y")
{
    const Scope& sc = GetRequiredScope(element);
    const Element* const Shading = sc["Shading"];
    const Element* const Culling = sc["Culling"];

    if(Shading) {
        shading = GetRequiredToken(*Shading,0).StringContents();
    }

    if (Culling) {
        culling = ParseTokenAsString(GetRequiredToken(*Culling,0));
    }

    props = GetPropertyTable(doc,"Model.FbxNode",element,sc);
    ResolveLinks(element,doc);
}

// ------------------------------------------------------------------------------------------------
Model::~Model()
{

}

// ------------------------------------------------------------------------------------------------
void Model::ResolveLinks(const Element& element, const Document& doc)
{
    const char* const arr[] = {"Geometry","Material","NodeAttribute"};

    // resolve material
    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),arr, 3);

    materials.reserve(conns.size());
    geometry.reserve(conns.size());
    attributes.reserve(conns.size());
    for(const Connection* con : conns) {

        // material and geometry links should be Object-Object connections
        if (con->PropertyName().length()) {
            continue;
        }

        const Object* const ob = con->SourceObject();
        if(!ob) {
            DOMWarning("failed to read source object for incoming Model link, ignoring",&element);
            continue;
        }

        const Material* const mat = dynamic_cast<const Material*>(ob);
        if(mat) {
            materials.push_back(mat);
            continue;
        }

        const Geometry* const geo = dynamic_cast<const Geometry*>(ob);
        if(geo) {
            geometry.push_back(geo);
            continue;
        }

        const NodeAttribute* const att = dynamic_cast<const NodeAttribute*>(ob);
        if(att) {
            attributes.push_back(att);
            continue;
        }

        DOMWarning("source object for model link is neither Material, NodeAttribute nor Geometry, ignoring",&element);
        continue;
    }
}

// ------------------------------------------------------------------------------------------------
bool Model::IsNull() const
{
    const std::vector<const NodeAttribute*>& attrs = GetAttributes();
    for(const NodeAttribute* att : attrs) {

        const Null* null_tag = dynamic_cast<const Null*>(att);
        if(null_tag) {
            return true;
        }
    }

    return false;
}


} //!FBX
} //!Assimp

#endif