/*!
* Free a mesh object and all of its resources.
*
* \param mesh Mesh object to be freed.
*/
void
lib3ds_mesh_free(Lib3dsMesh *mesh) {
lib3ds_mesh_resize_vertices(mesh, 0, 0, 0);
lib3ds_mesh_resize_faces(mesh, 0);
memset(mesh, 0, sizeof(Lib3dsMesh));
free(mesh);
}
static void
face_array_read(Lib3dsFile *file, Lib3dsMesh *mesh, Lib3dsIo *io) {
Lib3dsChunk c;
uint16_t chunk;
int i;
uint16_t nfaces;
lib3ds_chunk_read_start(&c, CHK_FACE_ARRAY, io);
lib3ds_mesh_resize_faces(mesh, 0);
nfaces = lib3ds_io_read_word(io);
if (nfaces) {
lib3ds_mesh_resize_faces(mesh, nfaces);
for (i = 0; i < nfaces; ++i) {
mesh->faces[i].index[0] = lib3ds_io_read_word(io);
mesh->faces[i].index[1] = lib3ds_io_read_word(io);
mesh->faces[i].index[2] = lib3ds_io_read_word(io);
mesh->faces[i].flags = lib3ds_io_read_word(io);
}
lib3ds_chunk_read_tell(&c, io);
while ((chunk = lib3ds_chunk_read_next(&c, io)) != 0) {
switch (chunk) {
case CHK_MSH_MAT_GROUP: {
char name[64];
unsigned n;
unsigned i;
int index;
int material;
lib3ds_io_read_string(io, name, 64);
material = lib3ds_file_material_by_name(file, name);
n = lib3ds_io_read_word(io);
for (i = 0; i < n; ++i) {
index = lib3ds_io_read_word(io);
if (index < mesh->nfaces) {
mesh->faces[index].material = material;
} else {
// TODO warning
}
}
break;
}
case CHK_SMOOTH_GROUP: {
int i;
for (i = 0; i < mesh->nfaces; ++i) {
mesh->faces[i].smoothing_group = lib3ds_io_read_dword(io);
}
break;
}
case CHK_MSH_BOXMAP: {
lib3ds_io_read_string(io, mesh->box_front, 64);
lib3ds_io_read_string(io, mesh->box_back, 64);
lib3ds_io_read_string(io, mesh->box_left, 64);
lib3ds_io_read_string(io, mesh->box_right, 64);
lib3ds_io_read_string(io, mesh->box_top, 64);
lib3ds_io_read_string(io, mesh->box_bottom, 64);
break;
}
default:
lib3ds_chunk_unknown(chunk,io);
}
}
}
lib3ds_chunk_read_end(&c, io);
}
int main(int argc, char **argv) {
Lib3dsFile *file = lib3ds_file_new();
file->frames = 360;
{
Lib3dsMaterial *mat = lib3ds_material_new("c_tex");
lib3ds_file_insert_material(file, mat, -1);
strcpy(mat->texture1_map.name, "cube.tga");
mat->texture1_map.percent = 1.0;
mat = lib3ds_material_new("c_red");
lib3ds_file_insert_material(file, mat, -1);
mat->diffuse[0] = 1.0;
mat->diffuse[1] = 0.0;
mat->diffuse[2] = 0.0;
mat = lib3ds_material_new("c_blue");
lib3ds_file_insert_material(file, mat, -1);
mat->diffuse[0] = 0.0;
mat->diffuse[1] = 0.0;
mat->diffuse[2] = 1.0;
}
{
int i, j;
Lib3dsMesh *mesh = lib3ds_mesh_new("cube");
Lib3dsMeshInstanceNode *inst;
lib3ds_file_insert_mesh(file, mesh, -1);
lib3ds_mesh_resize_vertices(mesh, 8, 1, 0);
for (i = 0; i < 8; ++i) {
lib3ds_vector_copy(mesh->vertices[i], g_vertices[i]);
mesh->texcos[i][0] = g_texcoords[i][0];
mesh->texcos[i][1] = g_texcoords[i][1];
}
lib3ds_mesh_resize_faces(mesh, 12);
for (i = 0; i < 12; ++i) {
for (j = 0; j < 3; ++j) {
mesh->faces[i].index[j] = g_indices[i][j];
}
}
for (i = 0; i < 8; ++i) {
mesh->faces[i].material = 0;
}
for (i = 0; i < 2; ++i) {
mesh->faces[8+i].material = 1;
}
for (i = 0; i < 2; ++i) {
mesh->faces[10+i].material = 2;
}
inst = lib3ds_node_new_mesh_instance(mesh, "01", NULL, NULL, NULL);
lib3ds_file_append_node(file, (Lib3dsNode*)inst, NULL);
}
{
Lib3dsCamera *camera;
Lib3dsCameraNode *n;
Lib3dsTargetNode *t;
int i;
camera = lib3ds_camera_new("camera01");
lib3ds_file_insert_camera(file, camera, -1);
lib3ds_vector_make(camera->position, 0.0, -100, 0.0);
lib3ds_vector_make(camera->target, 0.0, 0.0, 0.0);
n = lib3ds_node_new_camera(camera);
t = lib3ds_node_new_camera_target(camera);
lib3ds_file_append_node(file, (Lib3dsNode*)n, NULL);
lib3ds_file_append_node(file, (Lib3dsNode*)t, NULL);
lib3ds_track_resize(&n->pos_track, 37);
for (i = 0; i <= 36; i++) {
n->pos_track.keys[i].frame = 10 * i;
lib3ds_vector_make(n->pos_track.keys[i].value,
(float)(100.0 * cos(2 * M_PI * i / 36.0)),
(float)(100.0 * sin(2 * M_PI * i / 36.0)),
50.0
);
}
}
if (!lib3ds_file_save(file, "cube.3ds")) {
fprintf(stderr, "ERROR: Saving 3ds file failed!\n");
}
lib3ds_file_free(file);
}
// TODO: Build own exporter class
void objectExporter::on_buttonBox_accepted()
{
QString fileName = QFileDialog::getSaveFileName(gloParent, "Save 3ds Object", ".", "3D Object (*.3ds)", 0, 0);
QList<trackHandler*> trackList = gloParent->getTrackList();
trackHandler* curTrack = trackList[ui->trackBox->currentIndex()];
trackMesh* mesh = curTrack->mMesh;
QVector<float> *vertices = new QVector<float>();
QVector<unsigned int> *indices = new QVector<unsigned int>();
QVector<unsigned int> *borders = new QVector<unsigned int>();
Lib3dsFile *file = lib3ds_file_new();
file->frames = 360;
{
Lib3dsMaterial* mat = lib3ds_material_new("coaster");
lib3ds_file_insert_material(file, mat, -1);
mat->diffuse[0] = curTrack->trackColors[0].red()/255.f;
mat->diffuse[1] = curTrack->trackColors[0].green()/255.f;
mat->diffuse[2] = curTrack->trackColors[0].blue()/255.f;
}
{
for(int section = 0; section < curTrack->trackData->lSections.size(); ++section) {
vertices->clear();
indices->clear();
borders->clear();
mesh->build3ds(section, vertices, indices, borders);
float* fvertices = new float[vertices->size()];
for(int i = 0; i < vertices->size()/3; ++i) {
fvertices[3*i+0] = vertices->at(3*i+0);
fvertices[3*i+1] = -vertices->at(3*i+2);
fvertices[3*i+2] = vertices->at(3*i+1);
//exportScreen->doFastExport();
}
for(int subIndex = 0; subIndex < borders->size()-2; subIndex+= 2) {
int fromVIndex = borders->at(subIndex)/3;
int toVIndex = borders->at(subIndex+2)/3;
int fromIIndex = borders->at(subIndex+1)/3;
int toIIndex = borders->at(subIndex+3)/3;
int i, j;
QString name = QString::number(section).append(QString("_").append(QString::number(subIndex/2)));
Lib3dsMesh *mesh = lib3ds_mesh_new(name.toLocal8Bit().data());
Lib3dsMeshInstanceNode *inst;
lib3ds_file_insert_mesh(file, mesh, -1);
lib3ds_mesh_resize_vertices(mesh, toVIndex-fromVIndex, 1, 0);
for (i = 0; i < toVIndex-fromVIndex; ++i) {
lib3ds_vector_copy(mesh->vertices[i], &fvertices[(i+fromVIndex)*3]);
mesh->texcos[i][0] = 0.f;
mesh->texcos[i][1] = 0.f;
}
lib3ds_mesh_resize_faces(mesh, toIIndex-fromIIndex);
for (i = 0; i < toIIndex-fromIIndex; ++i) {
for (j = 0; j < 3; ++j) {
mesh->faces[i].index[j] = indices->at(3*(i+fromIIndex)+j)-fromVIndex;
mesh->faces[i].material = 0;
}
}
inst = lib3ds_node_new_mesh_instance(mesh, name.toLocal8Bit().data(), NULL, NULL, NULL);
lib3ds_file_append_node(file, (Lib3dsNode*)inst, NULL);
}
delete[] fvertices;
}
}
{
Lib3dsCamera *camera;
Lib3dsCameraNode *n;
Lib3dsTargetNode *t;
int i;
camera = lib3ds_camera_new("camera01");
lib3ds_file_insert_camera(file, camera, -1);
lib3ds_vector_make(camera->position, 0.0, -100, 0.0);
lib3ds_vector_make(camera->target, 0.0, 0.0, 0.0);
n = lib3ds_node_new_camera(camera);
t = lib3ds_node_new_camera_target(camera);
lib3ds_file_append_node(file, (Lib3dsNode*)n, NULL);
lib3ds_file_append_node(file, (Lib3dsNode*)t, NULL);
lib3ds_track_resize(&n->pos_track, 37);
for (i = 0; i <= 36; i++) {
n->pos_track.keys[i].frame = 10 * i;
lib3ds_vector_make(n->pos_track.keys[i].value,
(float)(100.0 * cos(2 * F_PI * i / 36.0)),
(float)(100.0 * sin(2 * F_PI * i / 36.0)),
50.0
);
}
}
if (!lib3ds_file_save(file, fileName.toLocal8Bit().data())) {
qDebug("ERROR: Saving 3ds file failed!\n");
}
lib3ds_file_free(file);
delete indices;
delete vertices;
}
void
WriterNodeVisitor::buildFaces(osg::Geode & geo,
const osg::Matrix & mat,
ListTriangle & listTriangles,
bool texcoords)
{
unsigned int nbTrianglesRemaining = listTriangles.size();
unsigned int nbVerticesRemaining = calcVertices(geo); // May set _succeded to false
if (!succeeded()) return;
std::string name( getUniqueName(geo.getName().empty() ? geo.className() : geo.getName(), true, "geo") );
if (!succeeded()) return;
Lib3dsMesh *mesh = lib3ds_mesh_new( name.c_str() );
if (!mesh)
{
OSG_NOTIFY(osg::FATAL) << "Allocation error" << std::endl;
_succeeded = false;
return;
}
//copyOsgMatrixToLib3dsMatrix(mesh->matrix, mat);
lib3ds_mesh_resize_faces (mesh, osg::minimum(nbTrianglesRemaining, MAX_FACES));
lib3ds_mesh_resize_vertices(mesh, osg::minimum(nbVerticesRemaining, MAX_VERTICES), texcoords ? 0 : 1, 0); // Not mandatory but will allocate once a big block
// Test if the mesh will be split and needs sorting
if (nbVerticesRemaining >= MAX_VERTICES || nbTrianglesRemaining >= MAX_FACES)
{
OSG_INFO << "Sorting elements..." << std::endl;
WriterCompareTriangle cmp(geo, nbVerticesRemaining);
std::sort(listTriangles.begin(), listTriangles.end(), cmp);
}
MapIndices index_vert;
unsigned int numFace = 0; // Current face index
for (ListTriangle::iterator it = listTriangles.begin(); it != listTriangles.end(); ++it) //Go through the triangle list to define meshs
{
// Test if the mesh will be full after adding a face
if (index_vert.size()+3 >= MAX_VERTICES || numFace+1 >= MAX_FACES)
{
// Finnish mesh
lib3ds_mesh_resize_faces (mesh, numFace);
//lib3ds_mesh_resize_vertices() will be called in buildMesh()
buildMesh(geo, mat, index_vert, texcoords, mesh); // May set _succeded to false
if (!succeeded())
{
lib3ds_mesh_free(mesh);
return;
}
// "Reset" values and start over a new mesh
index_vert.clear();
nbTrianglesRemaining -= numFace;
numFace = 0;
// We can't call a thing like "nbVerticesRemaining -= ...;" because points may be used multiple times.
// [Sukender: An optimisation here would take too much time I think.]
mesh = lib3ds_mesh_new( getUniqueName(geo.getName().empty() ? geo.className() : geo.getName(), true, "geo").c_str());
if (!mesh)
{
OSG_NOTIFY(osg::FATAL) << "Allocation error" << std::endl;
_succeeded = false;
return;
}
lib3ds_mesh_resize_faces (mesh, osg::minimum(nbTrianglesRemaining, MAX_FACES));
lib3ds_mesh_resize_vertices(mesh, osg::minimum(nbVerticesRemaining, MAX_VERTICES), texcoords ? 0 : 1, 0); // Not mandatory but will allocate once a big block
}
Lib3dsFace & face = mesh->faces[numFace++];
face.index[0] = getMeshIndexForGeometryIndex(index_vert, it->first.t1, it->second);
face.index[1] = getMeshIndexForGeometryIndex(index_vert, it->first.t2, it->second);
face.index[2] = getMeshIndexForGeometryIndex(index_vert, it->first.t3, it->second);
face.material = it->first.material;
}
buildMesh(geo, mat, index_vert, texcoords, mesh); // May set _succeded to false
if (!succeeded())
{
lib3ds_mesh_free(mesh);
return;
}
}
void LD3dsExporter::doExport(
LDLModel *pModel,
Lib3dsNode *pParentNode,
const TCFloat *matrix,
int colorNumber,
bool inPart,
bool bfc,
bool invert)
{
LDLFileLineArray *pFileLines = pModel->getFileLines();
if (pFileLines != NULL)
{
BFCState newBfcState = pModel->getBFCState();
int count = pModel->getActiveLineCount();
std::string meshName;
Lib3dsMesh *pMesh = NULL;
Lib3dsNode *pChildNode = NULL;
// Lib3dsMeshInstanceNode *pInst;
bool linesInvert = invert;
bool isNew = false;
if (TCVector::determinant(matrix) < 0.0f)
{
linesInvert = !linesInvert;
}
bfc = (bfc && newBfcState == BFCOnState) ||
newBfcState == BFCForcedOnState;
meshName.resize(128);
sprintf(&meshName[0], "m_%06d", ++m_meshCount);
// meshName = getMeshName(pModel, pMesh);
if (pMesh == NULL)
{
pMesh = lib3ds_mesh_new(meshName.c_str());
// memcpy(pMesh->matrix, matrix, sizeof(pMesh->matrix));
m_meshes[meshName] = pMesh;
lib3ds_file_insert_mesh(m_file, pMesh, -1);
isNew = true;
}
// pInst = lib3ds_node_new_mesh_instance(pMesh,
// NULL/*(meshName + "n").c_str()*/, NULL, NULL, NULL);
// pChildNode = (Lib3dsNode *)pInst;
// memcpy(pChildNode->matrix, matrix, sizeof(float) * 16);
// lib3ds_file_append_node(m_file, pChildNode, pParentNode);
VertexVector vecVertices;
FaceVector vecFaces;
for (int i = 0; i < count; i++)
{
LDLFileLine *pFileLine = (*pFileLines)[i];
if (!pFileLine->isValid())
{
continue;
}
switch (pFileLine->getLineType())
{
case LDLLineTypeTriangle:
case LDLLineTypeQuad:
writeShapeLine(vecVertices, vecFaces, (LDLShapeLine *)pFileLine,
matrix, colorNumber, bfc, linesInvert);
break;
case LDLLineTypeModel:
{
LDLModelLine *pModelLine = (LDLModelLine *)pFileLine;
LDLModel *pOtherModel = pModelLine->getModel(true);
if (pOtherModel != NULL)
{
TCFloat newMatrix[16];
int otherColorNumber = pModelLine->getColorNumber();
bool otherInPart = inPart;
bool otherInvert = invert;
if (pModelLine->getBFCInvert())
{
otherInvert = !otherInvert;
}
if (otherColorNumber == 16)
{
otherColorNumber = colorNumber;
}
TCVector::multMatrix(matrix, pModelLine->getMatrix(),
newMatrix);
if (!inPart && pOtherModel->isPart() && m_seams)
{
TCVector min, max;
TCFloat seamMatrix[16];
TCFloat tempMatrix[16];
pOtherModel->getBoundingBox(min, max);
TCVector::calcScaleMatrix(m_seamWidth, seamMatrix,
min, max);
TCVector::multMatrix(newMatrix, seamMatrix,
tempMatrix);
memcpy(newMatrix, tempMatrix, sizeof(newMatrix));
otherInPart = true;
}
doExport(pOtherModel, pChildNode, newMatrix,
otherColorNumber, otherInPart, bfc, otherInvert);
}
}
break;
default:
// Get rid of warning
break;
}
}
if (isNew && vecVertices.size() > 0)
{
lib3ds_mesh_resize_vertices(pMesh, (int)vecVertices.size(), 0, 0);
memcpy(pMesh->vertices, &vecVertices[0],
sizeof(vecVertices[0]) * vecVertices.size());
lib3ds_mesh_resize_faces(pMesh, (int)vecFaces.size());
memcpy(pMesh->faces, &vecFaces[0],
sizeof(vecFaces[0]) * vecFaces.size());
}
else
{
--m_meshCount;
}
}
}
