//creates <source> for texcoords
void GeometryExporter::createTexcoordsSource(std::string geom_id, Mesh *me)
{
#if 0
int totfaces = dm->getNumFaces(dm);
MFace *mfaces = dm->getFaceArray(dm);
#endif
int totfaces = me->totface;
MFace *mfaces = me->mface;
int totuv = 0;
int i;
// count totuv
for (i = 0; i < totfaces; i++) {
MFace *f = &mfaces[i];
if (f->v4 == 0) {
totuv+=3;
}
else {
totuv+=4;
}
}
int num_layers = CustomData_number_of_layers(&me->fdata, CD_MTFACE);
// write <source> for each layer
// each <source> will get id like meshName + "map-channel-1"
for (int a = 0; a < num_layers; a++) {
MTFace *tface = (MTFace*)CustomData_get_layer_n(&me->fdata, CD_MTFACE, a);
// char *name = CustomData_get_layer_name(&me->fdata, CD_MTFACE, a);
COLLADASW::FloatSourceF source(mSW);
std::string layer_id = makeTexcoordSourceId(geom_id, a);
source.setId(layer_id);
source.setArrayId(layer_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(totuv);
source.setAccessorStride(2);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
param.push_back("S");
param.push_back("T");
source.prepareToAppendValues();
for (i = 0; i < totfaces; i++) {
MFace *f = &mfaces[i];
for (int j = 0; j < (f->v4 == 0 ? 3 : 4); j++) {
source.appendValues(tface[i].uv[j][0],
tface[i].uv[j][1]);
}
}
source.finish();
}
}
//creates <source> for texcoords
void GeometryExporter::createTexcoordsSource(std::string geom_id, Mesh *me)
{
int totpoly = me->totpoly;
int totuv = me->totloop;
MPoly *mpolys = me->mpoly;
int num_layers = CustomData_number_of_layers(&me->ldata, CD_MLOOPUV);
// write <source> for each layer
// each <source> will get id like meshName + "map-channel-1"
int active_uv_index = CustomData_get_active_layer_index(&me->ldata, CD_MLOOPUV);
for (int a = 0; a < num_layers; a++) {
if (!this->export_settings->active_uv_only || a == active_uv_index) {
MLoopUV *mloops = (MLoopUV *)CustomData_get_layer_n(&me->ldata, CD_MLOOPUV, a);
COLLADASW::FloatSourceF source(mSW);
std::string layer_id = makeTexcoordSourceId(geom_id, a, this->export_settings->active_uv_only);
source.setId(layer_id);
source.setArrayId(layer_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(totuv);
source.setAccessorStride(2);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
param.push_back("S");
param.push_back("T");
source.prepareToAppendValues();
for (int index = 0; index < totpoly; index++) {
MPoly *mpoly = mpolys+index;
MLoopUV *mloop = mloops+mpoly->loopstart;
for (int j = 0; j < mpoly->totloop; j++) {
source.appendValues(mloop[j].uv[0],
mloop[j].uv[1]);
}
}
source.finish();
}
}
}
// powerful because it handles both cases when there is material and when there's not
void GeometryExporter::createPolylist(short material_index,
bool has_uvs,
bool has_color,
Object *ob,
std::string& geom_id,
std::vector<Face>& norind)
{
Mesh *me = (Mesh*)ob->data;
MFace *mfaces = me->mface;
int totfaces = me->totface;
// <vcount>
int i;
int faces_in_polylist = 0;
std::vector<unsigned long> vcount_list;
// count faces with this material
for (i = 0; i < totfaces; i++) {
MFace *f = &mfaces[i];
if (f->mat_nr == material_index) {
faces_in_polylist++;
if (f->v4 == 0) {
vcount_list.push_back(3);
}
else {
vcount_list.push_back(4);
}
}
}
// no faces using this material
if (faces_in_polylist == 0) {
fprintf(stderr, "%s: no faces use material %d\n", id_name(ob).c_str(), material_index);
return;
}
Material *ma = ob->totcol ? give_current_material(ob, material_index + 1) : NULL;
COLLADASW::Polylist polylist(mSW);
// sets count attribute in <polylist>
polylist.setCount(faces_in_polylist);
// sets material name
if (ma) {
std::ostringstream ostr;
ostr << translate_id(id_name(ma)) << material_index+1;
polylist.setMaterial(ostr.str());
}
COLLADASW::InputList &til = polylist.getInputList();
// creates <input> in <polylist> for vertices
COLLADASW::Input input1(COLLADASW::InputSemantic::VERTEX, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::VERTEX), 0);
// creates <input> in <polylist> for normals
COLLADASW::Input input2(COLLADASW::InputSemantic::NORMAL, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::NORMAL), 1);
til.push_back(input1);
til.push_back(input2);
// if mesh has uv coords writes <input> for TEXCOORD
int num_layers = CustomData_number_of_layers(&me->fdata, CD_MTFACE);
for (i = 0; i < num_layers; i++) {
// char *name = CustomData_get_layer_name(&me->fdata, CD_MTFACE, i);
COLLADASW::Input input3(COLLADASW::InputSemantic::TEXCOORD,
makeUrl(makeTexcoordSourceId(geom_id, i)),
2, // offset always 2, this is only until we have optimized UV sets
i // set number equals UV map index
);
til.push_back(input3);
}
if (has_color) {
COLLADASW::Input input4(COLLADASW::InputSemantic::COLOR, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::COLOR), has_uvs ? 3 : 2);
til.push_back(input4);
}
// sets <vcount>
polylist.setVCountList(vcount_list);
// performs the actual writing
polylist.prepareToAppendValues();
// <p>
int texindex = 0;
for (i = 0; i < totfaces; i++) {
MFace *f = &mfaces[i];
if (f->mat_nr == material_index) {
unsigned int *v = &f->v1;
unsigned int *n = &norind[i].v1;
for (int j = 0; j < (f->v4 == 0 ? 3 : 4); j++) {
polylist.appendValues(v[j]);
polylist.appendValues(n[j]);
if (has_uvs)
polylist.appendValues(texindex + j);
if (has_color)
polylist.appendValues(texindex + j);
}
}
texindex += 3;
if (f->v4 != 0)
texindex++;
}
polylist.finish();
}
// powerful because it handles both cases when there is material and when there's not
void GeometryExporter::createPolylist(short material_index,
bool has_uvs,
bool has_color,
Object *ob,
Mesh *me,
std::string& geom_id,
std::vector<BCPolygonNormalsIndices>& norind)
{
MPoly *mpolys = me->mpoly;
MLoop *mloops = me->mloop;
int totpolys = me->totpoly;
// <vcount>
int i;
int faces_in_polylist = 0;
std::vector<unsigned long> vcount_list;
// count faces with this material
for (i = 0; i < totpolys; i++) {
MPoly *p = &mpolys[i];
if (p->mat_nr == material_index) {
faces_in_polylist++;
vcount_list.push_back(p->totloop);
}
}
// no faces using this material
if (faces_in_polylist == 0) {
fprintf(stderr, "%s: material with index %d is not used.\n", id_name(ob).c_str(), material_index);
return;
}
Material *ma = ob->totcol ? give_current_material(ob, material_index + 1) : NULL;
COLLADASW::Polylist polylist(mSW);
// sets count attribute in <polylist>
polylist.setCount(faces_in_polylist);
// sets material name
if (ma) {
std::string material_id = get_material_id(ma);
std::ostringstream ostr;
ostr << translate_id(material_id);
polylist.setMaterial(ostr.str());
}
COLLADASW::InputList &til = polylist.getInputList();
// creates <input> in <polylist> for vertices
COLLADASW::Input input1(COLLADASW::InputSemantic::VERTEX, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::VERTEX), 0);
// creates <input> in <polylist> for normals
COLLADASW::Input input2(COLLADASW::InputSemantic::NORMAL, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::NORMAL), 1);
til.push_back(input1);
til.push_back(input2);
// if mesh has uv coords writes <input> for TEXCOORD
int num_layers = CustomData_number_of_layers(&me->fdata, CD_MTFACE);
int active_uv_index = CustomData_get_active_layer_index(&me->fdata, CD_MTFACE)-1;
for (i = 0; i < num_layers; i++) {
if (!this->export_settings->active_uv_only || i == active_uv_index) {
// char *name = CustomData_get_layer_name(&me->fdata, CD_MTFACE, i);
COLLADASW::Input input3(COLLADASW::InputSemantic::TEXCOORD,
makeUrl(makeTexcoordSourceId(geom_id, i, this->export_settings->active_uv_only)),
2, // this is only until we have optimized UV sets
(this->export_settings->active_uv_only) ? 0 : i // only_active_uv exported -> we have only one set
);
til.push_back(input3);
}
}
int totlayer_mcol = CustomData_number_of_layers(&me->ldata, CD_MLOOPCOL);
if (totlayer_mcol > 0) {
int map_index = 0;
for (int a = 0; a < totlayer_mcol; a++) {
char *layer_name = bc_CustomData_get_layer_name(&me->ldata, CD_MLOOPCOL, a);
COLLADASW::Input input4(COLLADASW::InputSemantic::COLOR,
makeUrl(makeVertexColorSourceId(geom_id, layer_name)),
(has_uvs) ? 3 : 2, // all color layers have same index order
map_index // set number equals color map index
);
til.push_back(input4);
map_index++;
}
}
// sets <vcount>
polylist.setVCountList(vcount_list);
// performs the actual writing
polylist.prepareToAppendValues();
// <p>
int texindex = 0;
for (i = 0; i < totpolys; i++) {
MPoly *p = &mpolys[i];
int loop_count = p->totloop;
if (p->mat_nr == material_index) {
MLoop *l = &mloops[p->loopstart];
BCPolygonNormalsIndices normal_indices = norind[i];
for (int j = 0; j < loop_count; j++) {
polylist.appendValues(l[j].v);
polylist.appendValues(normal_indices[j]);
if (has_uvs)
polylist.appendValues(texindex + j);
if (has_color)
polylist.appendValues(texindex + j);
}
}
texindex += loop_count;
}
polylist.finish();
}
