//////////////////////////////////////////////////////////////////////
// Read a mesh
//////////////////////////////////////////////////////////////////////
Mesh *MeshReader::BuildMesh( const string &inputFile )
{
// Open the input file
ifstream f( inputFile.c_str() );
Real E, v, density;
int numGaussPoints;
int elementType;
int numVertices, numElements, numConstrained;
Tuple3i divisions;
f >> E;
f >> v;
f >> density;
f >> numGaussPoints;
f >> elementType;
f >> numVertices;
f >> numElements;
f >> numConstrained;
f >> divisions[ 0 ];
f >> divisions[ 1 ];
f >> divisions[ 2 ];
Vector3Array vertices;
for ( int i = 0; i < numVertices; i++ )
{
VEC3F p;
f >> p[0];
f >> p[1];
f >> p[2];
vertices.push_back( p );
}
// Read in elements
if ( elementType < 0 || elementType >= Mesh::NUM_ELEMENT_TYPES )
{
cout << "Invalid element type!" << endl;
return NULL;
}
IntArray connectivity;
if ( elementType == Mesh::ISO_8_NODE )
{
for ( int i = 0; i < numElements; i++ )
{
for ( int j = 0; j < 8; j++ )
{
int nodeNum;
f >> nodeNum;
connectivity.push_back( nodeNum );
}
}
}
vector<bool> constrained(vertices.size());
for (int i = 0; i < constrained.size(); i++)
{
constrained.at(i) = false;
}
// Read in constrained nodes
for ( int i = 0; i < numConstrained; i++ )
{
int nodeNum;
f >> nodeNum;
constrained.at(nodeNum) = true;
}
f.close();
// Finish building the mesh
return new Mesh( vertices, (Mesh::ElementType)elementType, connectivity,
constrained, E, v, density, numGaussPoints, divisions );
}
//------------------------------------------------------------------------------------------------
void VertexIndexToShape::addAnimatedVertexData(const Ogre::VertexData *vertex_data,
const Ogre::VertexData *blend_data,
const Ogre::Mesh::IndexMap *indexMap)
{
// Get the bone index element
assert(vertex_data);
const Ogre::VertexData *data = blend_data;
const unsigned int prev_size = mVertexCount;
mVertexCount += (unsigned int)data->vertexCount;
Ogre::Vector3 *tmp_vert = new Ogre::Vector3[mVertexCount];
if (mVertexBuffer)
{
memcpy(tmp_vert, mVertexBuffer, sizeof(Ogre::Vector3) * prev_size);
delete[] mVertexBuffer;
}
mVertexBuffer = tmp_vert;
// Get the positional buffer element
{
const Ogre::VertexElement *posElem = data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
assert(posElem);
Ogre::HardwareVertexBufferSharedPtr vbuf = data->vertexBufferBinding->getBuffer(posElem->getSource());
const unsigned int vSize = (unsigned int)vbuf->getVertexSize();
unsigned char *vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
float *pReal;
Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size];
const unsigned int vertexCount = (unsigned int)data->vertexCount;
for (unsigned int j = 0; j < vertexCount; ++j)
{
posElem->baseVertexPointerToElement(vertex, &pReal);
vertex += vSize;
curVertices->x = (*pReal++);
curVertices->y = (*pReal++);
curVertices->z = (*pReal++);
*curVertices = mTransform * (*curVertices);
curVertices++;
}
vbuf->unlock();
}
{
const Ogre::VertexElement *bneElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_BLEND_INDICES);
assert(bneElem);
Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(bneElem->getSource());
const unsigned int vSize = (unsigned int)vbuf->getVertexSize();
unsigned char *vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
unsigned char *pBone = NULL;
if (!mBoneIndex)
{
mBoneIndex = new BoneIndex();
}
Ogre::Vector3 *curVertices = &mVertexBuffer[prev_size];
const unsigned int vertexCount = (unsigned int)vertex_data->vertexCount;
for (unsigned int j = 0; j < vertexCount; ++j)
{
bneElem->baseVertexPointerToElement(vertex, &pBone);
vertex += vSize;
const unsigned char currBone = (indexMap) ? (*indexMap)[*pBone] : *pBone;
const BoneIndex::iterator i = mBoneIndex->find(currBone);
Vector3Array *l = NULL;
if (i == mBoneIndex->end())
{
l = new Vector3Array;
mBoneIndex->insert(BoneKeyIndex(currBone, l));
}
else
{
l = i->second;
}
l->push_back(*curVertices);
curVertices++;
}
vbuf->unlock();
}
}
int main(int _argc, const char* _argv[])
{
bx::CommandLine cmdLine(_argc, _argv);
const char* filePath = cmdLine.findOption('f');
if (NULL == filePath)
{
help("Input file name must be specified.");
return EXIT_FAILURE;
}
const char* outFilePath = cmdLine.findOption('o');
if (NULL == outFilePath)
{
help("Output file name must be specified.");
return EXIT_FAILURE;
}
float scale = 1.0f;
const char* scaleArg = cmdLine.findOption('s', "scale");
if (NULL != scaleArg)
{
scale = (float)atof(scaleArg);
}
cmdLine.hasArg(s_obbSteps, '\0', "obb");
s_obbSteps = bx::uint32_min(bx::uint32_max(s_obbSteps, 1), 90);
uint32_t packNormal = 0;
cmdLine.hasArg(packNormal, '\0', "packnormal");
uint32_t packUv = 0;
cmdLine.hasArg(packUv, '\0', "packuv");
bool ccw = cmdLine.hasArg("ccw");
bool flipV = cmdLine.hasArg("flipv");
bool hasTangent = cmdLine.hasArg("tangent");
FILE* file = fopen(filePath, "r");
if (NULL == file)
{
printf("Unable to open input file '%s'.", filePath);
exit(EXIT_FAILURE);
}
int64_t parseElapsed = -bx::getHPCounter();
int64_t triReorderElapsed = 0;
uint32_t size = (uint32_t)fsize(file);
char* data = new char[size+1];
size = (uint32_t)fread(data, 1, size, file);
data[size] = '\0';
fclose(file);
// https://en.wikipedia.org/wiki/Wavefront_.obj_file
Vector3Array positions;
Vector3Array normals;
Vector3Array texcoords;
Index3Map indexMap;
TriangleArray triangles;
GroupArray groups;
uint32_t num = 0;
Group group;
group.m_startTriangle = 0;
group.m_numTriangles = 0;
char commandLine[2048];
uint32_t len = sizeof(commandLine);
int argc;
char* argv[64];
const char* next = data;
do
{
next = bx::tokenizeCommandLine(next, commandLine, len, argc, argv, BX_COUNTOF(argv), '\n');
if (0 < argc)
{
if (0 == strcmp(argv[0], "#") )
{
if (2 < argc
&& 0 == strcmp(argv[2], "polygons") )
{
}
}
else if (0 == strcmp(argv[0], "f") )
{
Triangle triangle;
memset(&triangle, 0, sizeof(Triangle) );
for (uint32_t edge = 0, numEdges = argc-1; edge < numEdges; ++edge)
{
Index3 index;
index.m_texcoord = -1;
index.m_normal = -1;
index.m_vertexIndex = -1;
char* vertex = argv[edge+1];
char* texcoord = strchr(vertex, '/');
if (NULL != texcoord)
{
*texcoord++ = '\0';
char* normal = strchr(texcoord, '/');
if (NULL != normal)
{
*normal++ = '\0';
index.m_normal = atoi(normal)-1;
}
index.m_texcoord = atoi(texcoord)-1;
}
index.m_position = atoi(vertex)-1;
uint64_t hash0 = index.m_position;
uint64_t hash1 = uint64_t(index.m_texcoord)<<20;
uint64_t hash2 = uint64_t(index.m_normal)<<40;
uint64_t hash = hash0^hash1^hash2;
stl::pair<Index3Map::iterator, bool> result = indexMap.insert(stl::make_pair(hash, index) );
if (!result.second)
{
Index3& oldIndex = result.first->second;
BX_UNUSED(oldIndex);
BX_CHECK(oldIndex.m_position == index.m_position
&& oldIndex.m_texcoord == index.m_texcoord
&& oldIndex.m_normal == index.m_normal
, "Hash collision!"
);
}
switch (edge)
{
case 0:
case 1:
case 2:
triangle.m_index[edge] = hash;
if (2 == edge)
{
if (ccw)
{
std::swap(triangle.m_index[1], triangle.m_index[2]);
}
triangles.push_back(triangle);
}
break;
default:
if (ccw)
{
triangle.m_index[2] = triangle.m_index[1];
triangle.m_index[1] = hash;
}
else
{
triangle.m_index[1] = triangle.m_index[2];
triangle.m_index[2] = hash;
}
triangles.push_back(triangle);
break;
}
}
}
else if (0 == strcmp(argv[0], "g") )
{
EXPECT(1 < argc);
group.m_name = argv[1];
}
else if (*argv[0] == 'v')
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
if (0 == strcmp(argv[0], "vn") )
{
Vector3 normal;
normal.x = (float)atof(argv[1]);
normal.y = (float)atof(argv[2]);
normal.z = (float)atof(argv[3]);
normals.push_back(normal);
}
else if (0 == strcmp(argv[0], "vp") )
{
static bool once = true;
if (once)
{
once = false;
printf("warning: 'parameter space vertices' are unsupported.\n");
}
}
else if (0 == strcmp(argv[0], "vt") )
{
Vector3 texcoord;
texcoord.x = (float)atof(argv[1]);
texcoord.y = 0.0f;
texcoord.z = 0.0f;
switch (argc)
{
case 4:
texcoord.z = (float)atof(argv[3]);
// fallthrough
case 3:
texcoord.y = (float)atof(argv[2]);
break;
default:
break;
}
texcoords.push_back(texcoord);
}
else
{
float px = (float)atof(argv[1]);
float py = (float)atof(argv[2]);
float pz = (float)atof(argv[3]);
float pw = 1.0f;
if (argc > 4)
{
pw = (float)atof(argv[4]);
}
float invW = scale/pw;
px *= invW;
py *= invW;
pz *= invW;
Vector3 pos;
pos.x = px;
pos.y = py;
pos.z = pz;
positions.push_back(pos);
}
}
else if (0 == strcmp(argv[0], "usemtl") )
{
std::string material(argv[1]);
if (material != group.m_material)
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
}
group.m_material = material;
}
// unsupported tags
// else if (0 == strcmp(argv[0], "mtllib") )
// {
// }
// else if (0 == strcmp(argv[0], "o") )
// {
// }
// else if (0 == strcmp(argv[0], "s") )
// {
// }
}
++num;
}
while ('\0' != *next);
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
delete [] data;
int64_t now = bx::getHPCounter();
parseElapsed += now;
int64_t convertElapsed = -now;
std::sort(groups.begin(), groups.end(), GroupSortByMaterial() );
bool hasColor = false;
bool hasNormal;
bool hasTexcoord;
{
Index3Map::const_iterator it = indexMap.begin();
hasNormal = -1 != it->second.m_normal;
hasTexcoord = -1 != it->second.m_texcoord;
if (!hasTexcoord
&& texcoords.size() == positions.size() )
{
hasTexcoord = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_texcoord = it->second.m_position;
}
}
if (!hasNormal
&& normals.size() == positions.size() )
{
hasNormal = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_normal = it->second.m_position;
}
}
}
bgfx::VertexDecl decl;
decl.begin();
decl.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float);
if (hasColor)
{
decl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true);
}
if (hasTexcoord)
{
switch (packUv)
{
default:
case 0:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float);
break;
case 1:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Half);
break;
}
}
if (hasNormal)
{
hasTangent &= hasTexcoord;
switch (packNormal)
{
default:
case 0:
decl.add(bgfx::Attrib::Normal, 3, bgfx::AttribType::Float);
if (hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Float);
}
break;
case 1:
decl.add(bgfx::Attrib::Normal, 4, bgfx::AttribType::Uint8, true, true);
if (hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Uint8, true, true);
}
break;
}
}
decl.end();
uint32_t stride = decl.getStride();
uint8_t* vertexData = new uint8_t[triangles.size() * 3 * stride];
uint16_t* indexData = new uint16_t[triangles.size() * 3];
int32_t numVertices = 0;
int32_t numIndices = 0;
int32_t numPrimitives = 0;
uint8_t* vertices = vertexData;
uint16_t* indices = indexData;
std::string material = groups.begin()->m_material;
PrimitiveArray primitives;
bx::CrtFileWriter writer;
if (0 != writer.open(outFilePath) )
{
printf("Unable to open output file '%s'.", outFilePath);
exit(EXIT_FAILURE);
}
Primitive prim;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
uint32_t positionOffset = decl.getOffset(bgfx::Attrib::Position);
uint32_t color0Offset = decl.getOffset(bgfx::Attrib::Color0);
uint32_t ii = 0;
for (GroupArray::const_iterator groupIt = groups.begin(); groupIt != groups.end(); ++groupIt, ++ii)
{
for (uint32_t tri = groupIt->m_startTriangle, end = tri + groupIt->m_numTriangles; tri < end; ++tri)
{
if (material != groupIt->m_material
|| 65533 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
if (0 < prim.m_numVertices)
{
primitives.push_back(prim);
}
triReorderElapsed -= bx::getHPCounter();
for (PrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (hasTangent)
{
calcTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(&writer, vertexData, numVertices, decl, indexData, numIndices, material, primitives);
primitives.clear();
for (Index3Map::iterator indexIt = indexMap.begin(); indexIt != indexMap.end(); ++indexIt)
{
indexIt->second.m_vertexIndex = -1;
}
vertices = vertexData;
indices = indexData;
numVertices = 0;
numIndices = 0;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
++numPrimitives;
material = groupIt->m_material;
}
Triangle& triangle = triangles[tri];
for (uint32_t edge = 0; edge < 3; ++edge)
{
uint64_t hash = triangle.m_index[edge];
Index3& index = indexMap[hash];
if (index.m_vertexIndex == -1)
{
index.m_vertexIndex = numVertices++;
float* position = (float*)(vertices + positionOffset);
memcpy(position, &positions[index.m_position], 3*sizeof(float) );
if (hasColor)
{
uint32_t* color0 = (uint32_t*)(vertices + color0Offset);
*color0 = rgbaToAbgr(numVertices%255, numIndices%255, 0, 0xff);
}
if (hasTexcoord)
{
float uv[2];
memcpy(uv, &texcoords[index.m_texcoord], 2*sizeof(float) );
if (flipV)
{
uv[1] = -uv[1];
}
bgfx::vertexPack(uv, true, bgfx::Attrib::TexCoord0, decl, vertices);
}
if (hasNormal)
{
float normal[4];
bx::vec3Norm(normal, (float*)&normals[index.m_normal]);
bgfx::vertexPack(normal, true, bgfx::Attrib::Normal, decl, vertices);
}
vertices += stride;
}
*indices++ = (uint16_t)index.m_vertexIndex;
++numIndices;
}
}
if (0 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
prim.m_name = groupIt->m_name;
primitives.push_back(prim);
prim.m_startVertex = numVertices;
prim.m_startIndex = numIndices;
}
BX_TRACE("%3d: s %5d, n %5d, %s\n"
, ii
, groupIt->m_startTriangle
, groupIt->m_numTriangles
, groupIt->m_material.c_str()
);
}
if (0 < primitives.size() )
{
triReorderElapsed -= bx::getHPCounter();
for (PrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (hasTangent)
{
calcTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(&writer, vertexData, numVertices, decl, indexData, numIndices, material, primitives);
}
printf("size: %d\n", uint32_t(writer.seek() ) );
writer.close();
delete [] indexData;
delete [] vertexData;
now = bx::getHPCounter();
convertElapsed += now;
printf("parse %f [s]\ntri reorder %f [s]\nconvert %f [s]\n# %d, g %d, p %d, v %d, i %d\n"
, double(parseElapsed)/bx::getHPFrequency()
, double(triReorderElapsed)/bx::getHPFrequency()
, double(convertElapsed)/bx::getHPFrequency()
, num
, uint32_t(groups.size() )
, numPrimitives
, numVertices
, numIndices
);
return EXIT_SUCCESS;
}
uint32_t objToBin(const uint8_t* _objData
, bx::WriterSeekerI* _writer
, uint32_t _packUv
, uint32_t _packNormal
, bool _ccw
, bool _flipV
, bool _hasTangent
, float _scale
)
{
int64_t parseElapsed = -bx::getHPCounter();
int64_t triReorderElapsed = 0;
const int64_t begin = _writer->seek();
Vector3Array positions;
Vector3Array normals;
Vector3Array texcoords;
Index3Map indexMap;
TriangleArray triangles;
BgfxGroupArray groups;
uint32_t num = 0;
MeshGroup group;
group.m_startTriangle = 0;
group.m_numTriangles = 0;
group.m_name = "";
group.m_material = "";
char commandLine[2048];
uint32_t len = sizeof(commandLine);
int argc;
char* argv[64];
const char* next = (const char*)_objData;
do
{
next = bx::tokenizeCommandLine(next, commandLine, len, argc, argv, BX_COUNTOF(argv), '\n');
if (0 < argc)
{
if (0 == strcmp(argv[0], "#") )
{
if (2 < argc
&& 0 == strcmp(argv[2], "polygons") )
{
}
}
else if (0 == strcmp(argv[0], "f") )
{
Triangle triangle;
memset(&triangle, 0, sizeof(Triangle) );
const int numNormals = (int)normals.size();
const int numTexcoords = (int)texcoords.size();
const int numPositions = (int)positions.size();
for (uint32_t edge = 0, numEdges = argc-1; edge < numEdges; ++edge)
{
Index3 index;
index.m_texcoord = 0;
index.m_normal = 0;
index.m_vertexIndex = -1;
char* vertex = argv[edge+1];
char* texcoord = strchr(vertex, '/');
if (NULL != texcoord)
{
*texcoord++ = '\0';
char* normal = strchr(texcoord, '/');
if (NULL != normal)
{
*normal++ = '\0';
const int nn = atoi(normal);
index.m_normal = (nn < 0) ? nn+numNormals : nn-1;
}
const int tex = atoi(texcoord);
index.m_texcoord = (tex < 0) ? tex+numTexcoords : tex-1;
}
const int pos = atoi(vertex);
index.m_position = (pos < 0) ? pos+numPositions : pos-1;
uint64_t hash0 = index.m_position;
uint64_t hash1 = uint64_t(index.m_texcoord)<<20;
uint64_t hash2 = uint64_t(index.m_normal)<<40;
uint64_t hash = hash0^hash1^hash2;
CS_STL::pair<Index3Map::iterator, bool> result = indexMap.insert(CS_STL::make_pair(hash, index) );
if (!result.second)
{
Index3& oldIndex = result.first->second;
BX_UNUSED(oldIndex);
BX_CHECK(oldIndex.m_position == index.m_position
&& oldIndex.m_texcoord == index.m_texcoord
&& oldIndex.m_normal == index.m_normal
, "Hash collision!"
);
}
switch (edge)
{
case 0:
case 1:
case 2:
triangle.m_index[edge] = hash;
if (2 == edge)
{
if (_ccw)
{
std::swap(triangle.m_index[1], triangle.m_index[2]);
}
triangles.push_back(triangle);
}
break;
default:
if (_ccw)
{
triangle.m_index[2] = triangle.m_index[1];
triangle.m_index[1] = hash;
}
else
{
triangle.m_index[1] = triangle.m_index[2];
triangle.m_index[2] = hash;
}
triangles.push_back(triangle);
break;
}
}
}
else if (0 == strcmp(argv[0], "g") )
{
if (1 >= argc)
{
CS_PRINT("Error parsing *.obj file.\n");
return 0;
}
group.m_name = argv[1];
}
else if (*argv[0] == 'v')
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
if (0 == strcmp(argv[0], "vn") )
{
Vector3 normal;
normal.x = (float)atof(argv[1]);
normal.y = (float)atof(argv[2]);
normal.z = (float)atof(argv[3]);
normals.push_back(normal);
}
else if (0 == strcmp(argv[0], "vp") )
{
static bool once = true;
if (once)
{
once = false;
CS_PRINT("warning: 'parameter space vertices' are unsupported.\n");
}
}
else if (0 == strcmp(argv[0], "vt") )
{
Vector3 texcoord;
texcoord.x = (float)atof(argv[1]);
texcoord.y = 0.0f;
texcoord.z = 0.0f;
switch (argc)
{
case 4:
texcoord.z = (float)atof(argv[3]);
// fallthrough
case 3:
texcoord.y = (float)atof(argv[2]);
break;
default:
break;
}
texcoords.push_back(texcoord);
}
else
{
float px = (float)atof(argv[1]);
float py = (float)atof(argv[2]);
float pz = (float)atof(argv[3]);
float pw = 1.0f;
if (argc > 4)
{
pw = (float)atof(argv[4]);
}
float invW = _scale/pw;
px *= invW;
py *= invW;
pz *= invW;
Vector3 pos;
pos.x = px;
pos.y = py;
pos.z = pz;
positions.push_back(pos);
}
}
else if (0 == strcmp(argv[0], "usemtl") )
{
std::string material(argv[1]);
if (material != group.m_material)
{
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
}
group.m_material = material;
}
// unsupported tags
// else if (0 == strcmp(argv[0], "mtllib") )
// {
// }
// else if (0 == strcmp(argv[0], "o") )
// {
// }
// else if (0 == strcmp(argv[0], "s") )
// {
// }
}
++num;
}
while ('\0' != *next);
group.m_numTriangles = (uint32_t)(triangles.size() ) - group.m_startTriangle;
if (0 < group.m_numTriangles)
{
groups.push_back(group);
group.m_startTriangle = (uint32_t)(triangles.size() );
group.m_numTriangles = 0;
}
int64_t now = bx::getHPCounter();
parseElapsed += now;
int64_t convertElapsed = -now;
std::sort(groups.begin(), groups.end(), GroupSortByMaterial() );
bool hasColor = false;
bool hasNormal;
bool hasTexcoord;
{
Index3Map::const_iterator it = indexMap.begin();
hasNormal = 0 != it->second.m_normal;
hasTexcoord = 0 != it->second.m_texcoord;
if (!hasTexcoord
&& texcoords.size() == positions.size() )
{
hasTexcoord = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_texcoord = it->second.m_position;
}
}
if (!hasNormal
&& normals.size() == positions.size() )
{
hasNormal = true;
for (Index3Map::iterator it = indexMap.begin(), itEnd = indexMap.end(); it != itEnd; ++it)
{
it->second.m_normal = it->second.m_position;
}
}
}
bgfx::VertexDecl decl;
decl.begin();
decl.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float);
if (hasColor)
{
decl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true);
}
if (hasTexcoord)
{
switch (_packUv)
{
default:
case 0:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float);
break;
case 1:
decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Half);
break;
}
}
if (hasNormal)
{
_hasTangent &= hasTexcoord;
switch (_packNormal)
{
default:
case 0:
decl.add(bgfx::Attrib::Normal, 3, bgfx::AttribType::Float);
if (_hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Float);
}
break;
case 1:
decl.add(bgfx::Attrib::Normal, 4, bgfx::AttribType::Uint8, true, true);
if (_hasTangent)
{
decl.add(bgfx::Attrib::Tangent, 4, bgfx::AttribType::Uint8, true, true);
}
break;
}
}
decl.end();
uint32_t stride = decl.getStride();
uint8_t* vertexData = new uint8_t[triangles.size() * 3 * stride];
uint16_t* indexData = new uint16_t[triangles.size() * 3];
int32_t numVertices = 0;
int32_t numIndices = 0;
int32_t numPrimitives = 0;
uint8_t* vertices = vertexData;
uint16_t* indices = indexData;
std::string material = groups.begin()->m_material;
BgfxPrimitiveArray primitives;
Primitive prim;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
uint32_t positionOffset = decl.getOffset(bgfx::Attrib::Position);
uint32_t color0Offset = decl.getOffset(bgfx::Attrib::Color0);
uint32_t ii = 0;
for (BgfxGroupArray::const_iterator groupIt = groups.begin(); groupIt != groups.end(); ++groupIt, ++ii)
{
for (uint32_t tri = groupIt->m_startTriangle, end = tri + groupIt->m_numTriangles; tri < end; ++tri)
{
if (material != groupIt->m_material
|| 65533 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
if (0 < prim.m_numVertices)
{
primitives.push_back(prim);
}
triReorderElapsed -= bx::getHPCounter();
for (BgfxPrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (_hasTangent)
{
calculateTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(_writer
, vertexData
, numVertices
, decl
, indexData
, numIndices
, material.c_str()
, primitives.data()
, (uint32_t)primitives.size()
);
primitives.clear();
for (Index3Map::iterator indexIt = indexMap.begin(); indexIt != indexMap.end(); ++indexIt)
{
indexIt->second.m_vertexIndex = -1;
}
vertices = vertexData;
indices = indexData;
numVertices = 0;
numIndices = 0;
prim.m_startVertex = 0;
prim.m_startIndex = 0;
++numPrimitives;
material = groupIt->m_material;
}
Triangle& triangle = triangles[tri];
for (uint32_t edge = 0; edge < 3; ++edge)
{
uint64_t hash = triangle.m_index[edge];
Index3& index = indexMap[hash];
if (index.m_vertexIndex == -1)
{
index.m_vertexIndex = numVertices++;
float* position = (float*)(vertices + positionOffset);
memcpy(position, &positions[index.m_position], 3*sizeof(float) );
if (hasColor)
{
uint32_t* color0 = (uint32_t*)(vertices + color0Offset);
*color0 = rgbaToAbgr(numVertices%255, numIndices%255, 0, 0xff);
}
if (hasTexcoord)
{
float uv[2];
memcpy(uv, &texcoords[index.m_texcoord], 2*sizeof(float) );
if (_flipV)
{
uv[1] = -uv[1];
}
bgfx::vertexPack(uv, true, bgfx::Attrib::TexCoord0, decl, vertices);
}
if (hasNormal)
{
float normal[4];
bx::vec3Norm(normal, (float*)&normals[index.m_normal]);
bgfx::vertexPack(normal, true, bgfx::Attrib::Normal, decl, vertices);
}
vertices += stride;
}
*indices++ = (uint16_t)index.m_vertexIndex;
++numIndices;
}
}
if (0 < numVertices)
{
prim.m_numVertices = numVertices - prim.m_startVertex;
prim.m_numIndices = numIndices - prim.m_startIndex;
bx::strlcpy(prim.m_name, groupIt->m_name.c_str(), 128);
primitives.push_back(prim);
prim.m_startVertex = numVertices;
prim.m_startIndex = numIndices;
}
//CS_PRINT("%3d: s %5d, n %5d, %s\n"
// , ii
// , groupIt->m_startTriangle
// , groupIt->m_numTriangles
// , groupIt->m_material.c_str()
// );
}
if (0 < primitives.size() )
{
triReorderElapsed -= bx::getHPCounter();
for (BgfxPrimitiveArray::const_iterator primIt = primitives.begin(); primIt != primitives.end(); ++primIt)
{
const Primitive& prim = *primIt;
triangleReorder(indexData + prim.m_startIndex, prim.m_numIndices, numVertices, 32);
}
triReorderElapsed += bx::getHPCounter();
if (_hasTangent)
{
calculateTangents(vertexData, numVertices, decl, indexData, numIndices);
}
write(_writer, vertexData, numVertices, decl, indexData, numIndices, material.c_str(), primitives.data(), (uint32_t)primitives.size());
}
delete [] indexData;
delete [] vertexData;
now = bx::getHPCounter();
convertElapsed += now;
const int64_t end = _writer->seek();
const uint32_t dataSize = uint32_t(end-begin);
CS_PRINT("size: %u\n", dataSize);
CS_PRINT("parse %f [s]\ntri reorder %f [s]\nconvert %f [s]\n# %d, g %d, p %d, v %d, i %d\n"
, double(parseElapsed)/bx::getHPFrequency()
, double(triReorderElapsed)/bx::getHPFrequency()
, double(convertElapsed)/bx::getHPFrequency()
, num
, uint32_t(groups.size() )
, numPrimitives
, numVertices
, numIndices
);
return dataSize;
}
bool
PMDHandler::doLoad(Model& model, istream& stream) noexcept
{
PMD _pmd;
if (!stream.read((char*)&_pmd.Header, sizeof(_pmd.Header))) return false;
// vertex
if (!stream.read((char*)&_pmd.VertexCount, sizeof(_pmd.VertexCount))) return false;
if (_pmd.VertexCount > 0)
{
_pmd.VertexList.resize(_pmd.VertexCount);
if (!stream.read((char*)&_pmd.VertexList[0], (std::streamsize)(sizeof(PMD_Vertex)* _pmd.VertexCount))) return false;
}
// index
if (!stream.read((char*)&_pmd.IndexCount, sizeof(_pmd.IndexCount))) return false;
if (_pmd.IndexCount > 0)
{
_pmd.IndexList.resize(_pmd.IndexCount);
if (!stream.read((char*)&_pmd.IndexList[0], (std::streamsize)(sizeof(PMD_Index)* _pmd.IndexCount))) return false;
}
// materal
if (!stream.read((char*)&_pmd.MaterialCount, sizeof(_pmd.MaterialCount))) return false;
if (_pmd.MaterialCount > 0)
{
_pmd.MaterialList.resize(_pmd.MaterialCount);
if (!stream.read((char*)&_pmd.MaterialList[0], (std::streamsize)(sizeof(PMD_Material)* _pmd.MaterialCount))) return false;
}
// bone
if (!stream.read((char*)&_pmd.BoneCount, sizeof(_pmd.BoneCount))) return false;
if (_pmd.BoneCount > 0)
{
_pmd.BoneList.resize(_pmd.BoneCount);
if (!stream.read((char*)&_pmd.BoneList[0], (std::streamsize)(sizeof(PMD_Bone)* _pmd.BoneCount))) return false;
}
// IK
if (!stream.read((char*)&_pmd.IkCount, sizeof(_pmd.IkCount))) return false;
if (_pmd.IkCount > 0)
{
_pmd.IkList.resize(_pmd.IkCount);
for (std::size_t i = 0; i < (std::size_t)_pmd.IkCount; i++)
{
if (!stream.read((char*)&_pmd.IkList[i].IK, sizeof(_pmd.IkList[i].IK))) return false;
if (!stream.read((char*)&_pmd.IkList[i].Target, sizeof(_pmd.IkList[i].Target))) return false;
if (!stream.read((char*)&_pmd.IkList[i].LinkCount, sizeof(_pmd.IkList[i].LinkCount))) return false;
if (!stream.read((char*)&_pmd.IkList[i].LoopCount, sizeof(_pmd.IkList[i].LoopCount))) return false;
if (!stream.read((char*)&_pmd.IkList[i].LimitOnce, sizeof(_pmd.IkList[i].LimitOnce))) return false;
_pmd.IkList[i].LinkList.resize(_pmd.IkList[i].LinkCount);
if (!stream.read((char*)&_pmd.IkList[i].LinkList[0], (std::streamsize)(sizeof(PMD_Link)* _pmd.IkList[i].LinkCount))) return false;
}
}
// Morph
if (!stream.read((char*)&_pmd.MorphCount, sizeof(_pmd.MorphCount))) return false;
if (_pmd.MorphCount > 0)
{
_pmd.MorphList.resize(_pmd.MorphCount);
for (std::size_t i = 0; i < (std::size_t)_pmd.MorphCount; i++)
{
if (!stream.read((char*)&_pmd.MorphList[i].Name, sizeof(_pmd.MorphList[i].Name))) return false;
if (!stream.read((char*)&_pmd.MorphList[i].VertexCount, sizeof(_pmd.MorphList[i].VertexCount))) return false;
if (!stream.read((char*)&_pmd.MorphList[i].Category, sizeof(_pmd.MorphList[i].Category))) return false;
if (_pmd.MorphList[i].VertexCount > 0)
{
_pmd.MorphList[i].VertexList.resize(_pmd.MorphList[i].VertexCount);
if (!stream.read((char*)&_pmd.MorphList[i].VertexList[0], (std::streamsize)(sizeof(PMD_MorphVertex)* _pmd.MorphList[i].VertexCount))) return false;
}
}
}
// frame window
if (!stream.read((char*)&_pmd.FrameWindow.ExpressionListCount, sizeof(_pmd.FrameWindow.ExpressionListCount))) return false;
if (_pmd.FrameWindow.ExpressionListCount > 0)
{
_pmd.FrameWindow.ExpressionList.resize(_pmd.FrameWindow.ExpressionListCount);
if (!stream.read((char*)&_pmd.FrameWindow.ExpressionList[0], (std::streamsize)(sizeof(PMD_Expression)* _pmd.FrameWindow.ExpressionListCount))) return false;
}
if (!stream.read((char*)&_pmd.FrameWindow.NodeNameCount, sizeof(_pmd.FrameWindow.NodeNameCount))) return false;
if (_pmd.FrameWindow.NodeNameCount > 0)
{
_pmd.FrameWindow.NodeNameList.resize(_pmd.FrameWindow.NodeNameCount);
if (!stream.read((char*)&_pmd.FrameWindow.NodeNameList[0].Name, (std::streamsize)(sizeof(PMD_NodeName)* _pmd.FrameWindow.NodeNameCount))) return false;
}
if (!stream.read((char*)&_pmd.FrameWindow.BoneToNodeCount, sizeof(_pmd.FrameWindow.BoneToNodeCount))) return false;
if (_pmd.FrameWindow.BoneToNodeCount > 0)
{
_pmd.FrameWindow.BoneToNodeList.resize(_pmd.FrameWindow.BoneToNodeCount);
if (!stream.read((char*)&_pmd.FrameWindow.BoneToNodeList[0].Bone, (std::streamsize)(sizeof(PMD_BoneToNode)* _pmd.FrameWindow.BoneToNodeCount))) return false;
}
// description
if (!stream.read((char*)&_pmd.HasDescription, sizeof(_pmd.HasDescription))) return false;
if (_pmd.HasDescription)
{
if (!stream.read((char*)&_pmd.Description.ModelName, sizeof(_pmd.Description.ModelName))) return false;
if (!stream.read((char*)&_pmd.Description.Comment, sizeof(_pmd.Description.Comment))) return false;
for (PMD_BoneCount i = 0; i < _pmd.BoneCount; i++)
{
PMD_BoneName name;
if (!stream.read((char*)&name.Name, sizeof(name))) return false;
_pmd.Description.BoneName.push_back(name);
}
for (PMD_uint8_t i = 0; i < _pmd.FrameWindow.ExpressionListCount; i++)
{
PMD_MorphName name;
if (!stream.read((char*)&name.Name, sizeof(name))) return false;
_pmd.Description.FaceName.push_back(name);
}
for (PMD_uint8_t i = 0; i < _pmd.FrameWindow.NodeNameCount; i++)
{
PMD_NodeName name;
if (!stream.read((char*)&name.Name, sizeof(name))) return false;
_pmd.Description.FrameName.push_back(name);
}
}
// toon
_pmd.ToonCount = PMD_NUM_TOON;
_pmd.ToonList.resize(_pmd.ToonCount);
if (!stream.read((char*)&_pmd.ToonList[0].Name, (std::streamsize)(sizeof(PMD_Toon) * _pmd.ToonCount))) return false;
// rigidbody
if (!stream.read((char*)&_pmd.BodyCount, sizeof(_pmd.BodyCount))) return false;
if (_pmd.BodyCount > 0)
{
_pmd.BodyList.resize(_pmd.BodyCount);
if (!stream.read((char*)&_pmd.BodyList[0], (std::streamsize)(sizeof(PMD_Body)* _pmd.BodyCount))) return false;
}
// joint
if (!stream.read((char*)&_pmd.JointCount, sizeof(_pmd.JointCount))) return false;
if (_pmd.JointCount > 0)
{
_pmd.JointList.resize(_pmd.JointCount);
if (!stream.read((char*)&_pmd.JointList[0], (std::streamsize)(sizeof(PMD_Body)* _pmd.JointCount))) return false;
}
for (std::size_t index = 0; index < _pmd.MaterialList.size(); index++)
{
auto& it = _pmd.MaterialList[index];
auto material = std::make_shared<MaterialProperty>();
material->set(MATKEY_COLOR_DIFFUSE, it.Diffuse);
material->set(MATKEY_COLOR_AMBIENT, it.Ambient);
material->set(MATKEY_COLOR_SPECULAR, it.Specular);
material->set(MATKEY_OPACITY, it.Opacity);
material->set(MATKEY_SHININESS, it.Shininess);
std::string name = it.TextureName;
std::string::size_type substr = name.find_first_of("*");
if (substr != std::string::npos)
{
name.erase(name.begin() + substr, name.end());
}
material->set(MATKEY_TEXTURE_DIFFUSE(0), name);
material->set(MATKEY_TEXTURE_AMBIENT(0), name);
model.addMaterial(material);
}
PMD_Index* indices = _pmd.IndexList.data();
PMD_Vertex* vertices = _pmd.VertexList.data();
MeshPropertyPtr root = std::make_shared<MeshProperty>();
MeshPropertyPtr mesh = root;
MeshPropertyPtr last = nullptr;
for (std::size_t index = 0; index < _pmd.MaterialList.size(); index++)
{
auto& it = _pmd.MaterialList[index];
Vector3Array points;
Vector3Array normals;
Vector2Array texcoords;
VertexWeights weights;
UintArray faces;
for (PMD_IndexCount i = 0; i < it.FaceVertexCount; i++, indices++)
{
PMD_Vertex& v = vertices[*indices];
points.push_back(v.Position);
normals.push_back(v.Normal);
texcoords.push_back(v.UV);
faces.push_back(i);
VertexWeight weight;
weight.weight1 = v.Weight / 100.0;
weight.weight2 = 1.0 - weight.weight1;
weight.weight3 = 0.0f;
weight.weight4 = 0.0f;
weight.bone1 = v.Bone.Bone1;
weight.bone2 = v.Bone.Bone2;
weight.bone3 = 0;
weight.bone4 = 0;
weights.push_back(weight);
}
if (last == mesh)
{
mesh = std::make_shared<MeshProperty>();
root->addChild(mesh);
}
mesh->setMaterialID(index);
mesh->setVertexArray(points);
mesh->setNormalArray(normals);
mesh->setTexcoordArray(texcoords);
mesh->setWeightArray(weights);
mesh->setFaceArray(faces);
last = mesh;
}
if (_pmd.BoneCount > 0)
{
Bones bones;
InverseKinematics iks;
for (auto& it : _pmd.BoneList)
{
Bone bone;
char inbuf[MAX_PATH + 1] = { 0 };
char outbuf[MAX_PATH + 1] = { 0 };
char *in = inbuf;
char *out = outbuf;
std::size_t in_size = (size_t)MAX_PATH;
std::size_t out_size = (size_t)MAX_PATH;
memcpy(in, it.Name.Name, sizeof(it.Name.Name));
iconv_t ic = iconv_open("GBK", "SJIS");
iconv(ic, &in, &in_size, &out, &out_size);
iconv_close(ic);
bone.setName(std::string(outbuf));
bone.setPosition(it.Position);
bone.setParent(it.Parent);
bone.setChild(it.Child);
bones.push_back(bone);
}
for (auto& it : _pmd.IkList)
{
IKAttr attr;
attr.IKBoneIndex = it.IK;
attr.IKTargetBoneIndex = it.Target;
attr.IKLimitedRadian = it.LimitOnce;
attr.IKLinkCount = it.LinkCount;
attr.IKLoopCount = it.LoopCount;
for (auto& bone : it.LinkList)
{
IKChild child;
child.BoneIndex = bone;
child.MinimumRadian = Vector3::Zero;
child.MaximumRadian = Vector3(3.14, 3.14, 3.14);
child.RotateLimited = 1;
attr.IKList.push_back(child);
}
iks.push_back(attr);
}
root->setInverseKinematics(iks);
root->setBoneArray(bones);
}
model.addMesh(root);
return true;
}
bool
SDKMeshHandler::doLoad(Model& model, istream& stream) noexcept
{
SDKMESH_HEADER hdr;
if (!stream.read((char*)&hdr, sizeof(hdr)))
return false;
std::vector<SDKMESH_VERTEX_BUFFER_HEADER> vbs;
std::vector<SDKMESH_INDEX_BUFFER_HEADER> ibs;
std::vector<SDKMESH_MESH> meshes;
std::vector<SDKMESH_MATERIAL> materials;
vbs.resize(hdr.NumVertexBuffers);
ibs.resize(hdr.NumIndexBuffers);
meshes.resize(hdr.NumMeshes);
materials.resize(hdr.NumMaterials);
if (!stream.seekg(hdr.VertexStreamHeadersOffset, ios_base::beg)) return false;
if (!stream.read((char*)vbs.data(), sizeof(SDKMESH_VERTEX_BUFFER_HEADER) * hdr.NumVertexBuffers)) return false;
if (!stream.seekg(hdr.IndexStreamHeadersOffset, ios_base::beg)) return false;
if (!stream.read((char*)ibs.data(), sizeof(SDKMESH_INDEX_BUFFER_HEADER) * hdr.NumIndexBuffers)) return false;
if (!stream.seekg(hdr.MeshDataOffset, ios_base::beg)) return false;
if (!stream.read((char*)meshes.data(), sizeof(SDKMESH_MESH) * hdr.NumMeshes)) return false;
if (!stream.seekg(hdr.MaterialDataOffset, ios_base::beg)) return false;
if (!stream.read((char*)materials.data(), sizeof(SDKMESH_MATERIAL) * hdr.NumMaterials)) return false;
Vector3Array vertices;
Vector3Array normals;
Vector3Array tangets;
Vector2Array texcoord;
UintArray faces;
MeshPropertyPtr root = nullptr;
for (auto& it : materials)
{
auto material = std::make_shared<MaterialProperty>();
material->set(MATKEY_NAME, it.Name);
material->set(MATKEY_COLOR_DIFFUSE, it.Diffuse);
material->set(MATKEY_COLOR_AMBIENT, it.Ambient);
material->set(MATKEY_COLOR_SPECULAR, Vector3(0.5,0.5,0.5));
material->set(MATKEY_SHININESS, it.Power);
if (it.DiffuseTexture[0] != 0)
{
material->set(MATKEY_TEXTURE_DIFFUSE(0), it.DiffuseTexture);
material->set(MATKEY_TEXTURE_AMBIENT(0), it.DiffuseTexture);
}
if (it.NormalTexture[0] != 0)
{
material->set(MATKEY_TEXTURE_NORMALS(0), it.NormalTexture);
}
if (it.SpecularTexture[0] != 0)
{
material->set(MATKEY_TEXTURE_SPECULAR(0), it.SpecularTexture);
}
model.addMaterial(material);
}
for (std::size_t meshIndex = 0; meshIndex < hdr.NumMeshes; meshIndex++)
{
auto& mesh = meshes[meshIndex];
for (std::size_t i = 0; i < mesh.NumVertexBuffers; i++)
{
stream.seekg(vbs[i].DataOffset, ios_base::beg);
for (std::size_t j = 0; j < vbs[i].NumVertices; j++)
{
std::uint8_t offset = 0;
std::uint8_t buffer[MAX_VERTEX_BUFFER];
stream.read((char*)buffer, vbs[i].StrideBytes);
for (std::size_t element = 0; element < MAX_VERTEX_ELEMENTS; element++)
{
if (vbs[i].Decl[element].Stream != 0)
{
offset = 0;
break;
}
if (vbs[i].Decl[element].Usage == USAGE_POSITION)
{
vertices.push_back(*(Vector3*)((char*)&buffer + offset));
offset += sizeof(Vector3);
}
else if (vbs[i].Decl[element].Usage == USAGE_NORMAL)
{
normals.push_back(*(Vector3*)((char*)&buffer + offset));
offset += sizeof(Vector3);
}
else if (vbs[i].Decl[element].Usage == USAGE_TANGENT)
{
tangets.push_back(*(Vector3*)((char*)&buffer + offset));
offset += sizeof(Vector3);
}
else if (vbs[i].Decl[element].Usage == USAGE_TEXCOORD)
{
texcoord.push_back(*(Vector2*)((char*)&buffer + offset));
offset += sizeof(Vector2);
}
}
}
}
stream.seekg(ibs[mesh.IndexBuffer].DataOffset, ios_base::beg);
auto sizeofdata = ibs[mesh.IndexBuffer].SizeBytes / ibs[mesh.IndexBuffer].NumIndices;
for (std::size_t j = 0; j < ibs[mesh.IndexBuffer].NumIndices; j++)
{
std::uint32_t buffer = 0;
stream.read((char*)&buffer, sizeofdata);
faces.push_back(buffer);
}
MeshPropertyPtr subset = std::make_shared<MeshProperty>();
subset->setMaterialID(0);
subset->setVertexArray(vertices);
subset->setNormalArray(normals);
subset->setTexcoordArray(texcoord);
subset->setTangentArray(tangets);
subset->setFaceArray(faces);
if (root)
root->addChild(subset);
else
root = subset;
}
model.addMesh(root);
return true;
}