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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
---------------------------------------------------------------------------
Copyright (c) 2006-2019, 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 Implementation of the post processing step "MakeVerboseFormat"
*/
#include "MakeVerboseFormat.h"
#include <assimp/scene.h>
#include <assimp/DefaultLogger.hpp>
using namespace Assimp;
// ------------------------------------------------------------------------------------------------
MakeVerboseFormatProcess::MakeVerboseFormatProcess()
{
// nothing to do here
}
// ------------------------------------------------------------------------------------------------
MakeVerboseFormatProcess::~MakeVerboseFormatProcess()
{
// nothing to do here
}
// ------------------------------------------------------------------------------------------------
// Executes the post processing step on the given imported data.
void MakeVerboseFormatProcess::Execute( aiScene* pScene)
{
ai_assert(NULL != pScene);
ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess begin");
bool bHas = false;
for( unsigned int a = 0; a < pScene->mNumMeshes; a++)
{
if( MakeVerboseFormat( pScene->mMeshes[a]))
bHas = true;
}
if (bHas) {
ASSIMP_LOG_INFO("MakeVerboseFormatProcess finished. There was much work to do ...");
} else {
ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess. There was nothing to do.");
}
pScene->mFlags &= ~AI_SCENE_FLAGS_NON_VERBOSE_FORMAT;
}
// ------------------------------------------------------------------------------------------------
// Executes the post processing step on the given imported data.
bool MakeVerboseFormatProcess::MakeVerboseFormat(aiMesh* pcMesh)
{
ai_assert(NULL != pcMesh);
unsigned int iOldNumVertices = pcMesh->mNumVertices;
const unsigned int iNumVerts = pcMesh->mNumFaces*3;
aiVector3D* pvPositions = new aiVector3D[ iNumVerts ];
aiVector3D* pvNormals = NULL;
if (pcMesh->HasNormals())
{
pvNormals = new aiVector3D[iNumVerts];
}
aiVector3D* pvTangents = NULL, *pvBitangents = NULL;
if (pcMesh->HasTangentsAndBitangents())
{
pvTangents = new aiVector3D[iNumVerts];
pvBitangents = new aiVector3D[iNumVerts];
}
aiVector3D* apvTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS] = {0};
aiColor4D* apvColorSets[AI_MAX_NUMBER_OF_COLOR_SETS] = {0};
unsigned int p = 0;
while (pcMesh->HasTextureCoords(p))
apvTextureCoords[p++] = new aiVector3D[iNumVerts];
p = 0;
while (pcMesh->HasVertexColors(p))
apvColorSets[p++] = new aiColor4D[iNumVerts];
// allocate enough memory to hold output bones and vertex weights ...
std::vector<aiVertexWeight>* newWeights = new std::vector<aiVertexWeight>[pcMesh->mNumBones];
for (unsigned int i = 0;i < pcMesh->mNumBones;++i) {
newWeights[i].reserve(pcMesh->mBones[i]->mNumWeights*3);
}
// iterate through all faces and build a clean list
unsigned int iIndex = 0;
for (unsigned int a = 0; a< pcMesh->mNumFaces;++a)
{
aiFace* pcFace = &pcMesh->mFaces[a];
for (unsigned int q = 0; q < pcFace->mNumIndices;++q,++iIndex)
{
// need to build a clean list of bones, too
for (unsigned int i = 0;i < pcMesh->mNumBones;++i)
{
for (unsigned int a = 0; a < pcMesh->mBones[i]->mNumWeights;a++)
{
const aiVertexWeight& w = pcMesh->mBones[i]->mWeights[a];
if(pcFace->mIndices[q] == w.mVertexId)
{
aiVertexWeight wNew;
wNew.mVertexId = iIndex;
wNew.mWeight = w.mWeight;
newWeights[i].push_back(wNew);
}
}
}
pvPositions[iIndex] = pcMesh->mVertices[pcFace->mIndices[q]];
if (pcMesh->HasNormals())
{
pvNormals[iIndex] = pcMesh->mNormals[pcFace->mIndices[q]];
}
if (pcMesh->HasTangentsAndBitangents())
{
pvTangents[iIndex] = pcMesh->mTangents[pcFace->mIndices[q]];
pvBitangents[iIndex] = pcMesh->mBitangents[pcFace->mIndices[q]];
}
unsigned int p = 0;
while (pcMesh->HasTextureCoords(p))
{
apvTextureCoords[p][iIndex] = pcMesh->mTextureCoords[p][pcFace->mIndices[q]];
++p;
}
p = 0;
while (pcMesh->HasVertexColors(p))
{
apvColorSets[p][iIndex] = pcMesh->mColors[p][pcFace->mIndices[q]];
++p;
}
pcFace->mIndices[q] = iIndex;
}
}
// build output vertex weights
for (unsigned int i = 0;i < pcMesh->mNumBones;++i)
{
delete [] pcMesh->mBones[i]->mWeights;
if (!newWeights[i].empty()) {
pcMesh->mBones[i]->mWeights = new aiVertexWeight[newWeights[i].size()];
aiVertexWeight *weightToCopy = &( newWeights[i][0] );
memcpy(pcMesh->mBones[i]->mWeights, weightToCopy,
sizeof(aiVertexWeight) * newWeights[i].size());
} else {
pcMesh->mBones[i]->mWeights = NULL;
}
}
delete[] newWeights;
// delete the old members
delete[] pcMesh->mVertices;
pcMesh->mVertices = pvPositions;
p = 0;
while (pcMesh->HasTextureCoords(p))
{
delete[] pcMesh->mTextureCoords[p];
pcMesh->mTextureCoords[p] = apvTextureCoords[p];
++p;
}
p = 0;
while (pcMesh->HasVertexColors(p))
{
delete[] pcMesh->mColors[p];
pcMesh->mColors[p] = apvColorSets[p];
++p;
}
pcMesh->mNumVertices = iNumVerts;
if (pcMesh->HasNormals())
{
delete[] pcMesh->mNormals;
pcMesh->mNormals = pvNormals;
}
if (pcMesh->HasTangentsAndBitangents())
{
delete[] pcMesh->mTangents;
pcMesh->mTangents = pvTangents;
delete[] pcMesh->mBitangents;
pcMesh->mBitangents = pvBitangents;
}
return (pcMesh->mNumVertices != iOldNumVertices);
}
|