assimp/code/ObjExporter.h

123 lines
3.4 KiB
C++

/*
Open Asset Import Library (ASSIMP)
----------------------------------------------------------------------
Copyright (c) 2006-2010, ASSIMP Development Team
All rights reserved.
Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
* Neither the name of the ASSIMP team, nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission of the ASSIMP Development Team.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------
*/
/** @file ColladaExporter.h
* Declares the exporter class to write a scene to a Collada file
*/
#ifndef AI_OBJEXPORTER_H_INC
#define AI_OBJEXPORTER_H_INC
#include <sstream>
struct aiScene;
struct aiNode;
namespace Assimp
{
// ------------------------------------------------------------------------------------------------
/** Helper class to export a given scene to an OBJ file. */
// ------------------------------------------------------------------------------------------------
class ObjExporter
{
public:
/// Constructor for a specific scene to export
ObjExporter(const char* filename, const aiScene* pScene);
public:
std::string GetMaterialLibName();
std::string GetMaterialLibFileName();
public:
/// public stringstreams to write all output into
std::ostringstream mOutput, mOutputMat;
private:
// intermediate data structures
struct FaceVertex
{
FaceVertex()
: vp(),vn(),vt()
{
}
// one-based, 0 means: 'does not exist'
unsigned int vp,vn,vt;
};
struct Face {
std::vector<FaceVertex> indices;
};
struct MeshInstance {
std::string name, matname;
std::vector<Face> faces;
};
void WriteHeader(std::ostringstream& out);
void WriteMaterialFile();
void WriteGeometryFile();
std::string GetMaterialName(unsigned int index);
void AddMesh(const aiString& name, const aiMesh* m, const aiMatrix4x4& mat);
void AddNode(const aiNode* nd, const aiMatrix4x4& mParent);
private:
const std::string filename;
const aiScene* const pScene;
std::vector<aiVector3D> vp, vn, vt;
std::vector<MeshInstance> meshes;
// this endl() doesn't flush() the stream
const std::string endl;
};
}
#endif