1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------
Copyright (c) 2006-2016, assimp 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 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_COLLADAEXPORTER_H_INC
#define AI_COLLADAEXPORTER_H_INC
#include <assimp/ai_assert.h>
#include <assimp/material.h>
#include <assimp/mesh.h>
#include <assimp/light.h>
#include <assimp/Exporter.hpp>
#include <sstream>
#include <vector>
#include <map>
struct aiScene;
struct aiNode;
namespace Assimp
{
/// Helper class to export a given scene to a Collada file. Just for my personal
/// comfort when implementing it.
class ColladaExporter
{
public:
/// Constructor for a specific scene to export
ColladaExporter( const aiScene* pScene, IOSystem* pIOSystem, const std::string& path, const std::string& file);
/// Destructor
virtual ~ColladaExporter();
protected:
/// Starts writing the contents
void WriteFile();
/// Writes the asset header
void WriteHeader();
/// Writes the embedded textures
void WriteTextures();
/// Writes the material setup
void WriteMaterials();
/// Writes the cameras library
void WriteCamerasLibrary();
// Write a camera entry
void WriteCamera(size_t pIndex);
/// Writes the cameras library
void WriteLightsLibrary();
// Write a camera entry
void WriteLight(size_t pIndex);
void WritePointLight(const aiLight *const light);
void WriteDirectionalLight(const aiLight *const light);
void WriteSpotLight(const aiLight *const light);
void WriteAmbienttLight(const aiLight *const light);
/// Writes the geometry library
void WriteGeometryLibrary();
/// Writes the given mesh
void WriteGeometry( size_t pIndex);
enum FloatDataType { FloatType_Vector, FloatType_TexCoord2, FloatType_TexCoord3, FloatType_Color };
/// Writes a float array of the given type
void WriteFloatArray( const std::string& pIdString, FloatDataType pType, const float* pData, size_t pElementCount);
/// Writes the scene library
void WriteSceneLibrary();
/// Recursively writes the given node
void WriteNode( const aiScene* scene, aiNode* pNode);
/// Enters a new xml element, which increases the indentation
void PushTag() { startstr.append( " "); }
/// Leaves an element, decreasing the indentation
void PopTag() { ai_assert( startstr.length() > 1); startstr.erase( startstr.length() - 2); }
/// Creates a mesh ID for the given mesh
std::string GetMeshId( size_t pIndex) const { return std::string( "meshId" ) + std::to_string(pIndex); }
public:
/// Stringstream to write all output into
std::stringstream mOutput;
protected:
/// The IOSystem for output
IOSystem* mIOSystem;
/// Path of the directory where the scene will be exported
const std::string mPath;
/// Name of the file (without extension) where the scene will be exported
const std::string mFile;
/// The scene to be written
const aiScene* mScene;
bool mSceneOwned;
/// current line start string, contains the current indentation for simple stream insertion
std::string startstr;
/// current line end string for simple stream insertion
std::string endstr;
// pair of color and texture - texture precedences color
struct Surface
{
bool exist;
aiColor4D color;
std::string texture;
size_t channel;
Surface() { exist = false; channel = 0; }
};
struct Property
{
bool exist;
float value;
Property()
: exist(false)
, value(0.0f)
{}
};
// summarize a material in an convinient way.
struct Material
{
std::string name;
std::string shading_model;
Surface ambient, diffuse, specular, emissive, reflective, transparent, normal;
Property shininess, transparency, index_refraction;
Material() {}
};
std::vector<Material> materials;
std::map<unsigned int, std::string> textures;
protected:
/// Dammit C++ - y u no compile two-pass? No I have to add all methods below the struct definitions
/// Reads a single surface entry from the given material keys
void ReadMaterialSurface( Surface& poSurface, const aiMaterial* pSrcMat, aiTextureType pTexture, const char* pKey, size_t pType, size_t pIndex);
/// Writes an image entry for the given surface
void WriteImageEntry( const Surface& pSurface, const std::string& pNameAdd);
/// Writes the two parameters necessary for referencing a texture in an effect entry
void WriteTextureParamEntry( const Surface& pSurface, const std::string& pTypeName, const std::string& pMatName);
/// Writes a color-or-texture entry into an effect definition
void WriteTextureColorEntry( const Surface& pSurface, const std::string& pTypeName, const std::string& pImageName);
/// Writes a scalar property
void WriteFloatEntry( const Property& pProperty, const std::string& pTypeName);
};
}
#endif // !! AI_COLLADAEXPORTER_H_INC
|
