// create a mesh storing a pointer in a map so it can be retrieved later by geometry UID
bool MeshImporter::write_geometry(const COLLADAFW::Geometry *geom)
{
if (geom->getType() != COLLADAFW::Geometry::GEO_TYPE_MESH) {
// TODO: report warning
fprintf(stderr, "Mesh type %s is not supported\n", bc_geomTypeToStr(geom->getType()));
return true;
}
COLLADAFW::Mesh *mesh = (COLLADAFW::Mesh *)geom;
if (!is_nice_mesh(mesh)) {
fprintf(stderr, "Ignoring mesh %s\n", bc_get_dae_name(mesh).c_str());
return true;
}
const std::string& str_geom_id = mesh->getName().size() ? mesh->getName() : mesh->getOriginalId();
Mesh *me = BKE_mesh_add(G.main, (char *)str_geom_id.c_str());
me->id.us--; // is already 1 here, but will be set later in BKE_mesh_assign_object
// store the Mesh pointer to link it later with an Object
// mesh_geom_map needed to map mesh to its geometry name (for shape key naming)
this->uid_mesh_map[mesh->getUniqueId()] = me;
this->mesh_geom_map[std::string(me->id.name)] = str_geom_id;
read_vertices(mesh, me);
read_polys(mesh, me);
// must validate before calculating edges
BKE_mesh_calc_normals(me);
BKE_mesh_validate(me, false, false);
// validation does this
// BKE_mesh_calc_edges(me, false, false);
// read_lines() must be called after the face edges have been generated.
// Oterwise the loose edges will be silently deleted again.
read_lines(mesh, me);
return true;
}
void BlenderStrokeRenderer::RenderStrokeRepBasic(StrokeRep *iStrokeRep) const
{
////////////////////
// Build up scene
////////////////////
vector<Strip*>& strips = iStrokeRep->getStrips();
Strip::vertex_container::iterator v[3];
StrokeVertexRep *svRep[3];
/* Vec3r color[3]; */ /* UNUSED */
unsigned int vertex_index, edge_index, loop_index;
Vec2r p;
for (vector<Strip*>::iterator s = strips.begin(), send = strips.end(); s != send; ++s) {
Strip::vertex_container& strip_vertices = (*s)->vertices();
int strip_vertex_count = (*s)->sizeStrip();
int xl, xu, yl, yu, n, visible_faces, visible_segments;
bool visible;
// iterate over all vertices and count visible faces and strip segments
// (note: a strip segment is a series of visible faces, while two strip
// segments are separated by one or more invisible faces)
v[0] = strip_vertices.begin();
v[1] = v[0] + 1;
v[2] = v[0] + 2;
visible_faces = visible_segments = 0;
visible = false;
for (n = 2; n < strip_vertex_count; n++, v[0]++, v[1]++, v[2]++) {
svRep[0] = *(v[0]);
svRep[1] = *(v[1]);
svRep[2] = *(v[2]);
xl = xu = yl = yu = 0;
for (int j = 0; j < 3; j++) {
p = svRep[j]->point2d();
if (p[0] < 0.0)
xl++;
else if (p[0] > _width)
xu++;
if (p[1] < 0.0)
yl++;
else if (p[1] > _height)
yu++;
}
if (xl == 3 || xu == 3 || yl == 3 || yu == 3) {
visible = false;
}
else {
visible_faces++;
if (!visible)
visible_segments++;
visible = true;
}
}
if (visible_faces == 0)
continue;
//me = Mesh.New()
#if 0
Object *object_mesh = BKE_object_add(freestyle_bmain, freestyle_scene, OB_MESH);
#else
Object *object_mesh = NewMesh();
#endif
Mesh *mesh = (Mesh *)object_mesh->data;
mesh->mat = (Material **)MEM_mallocN(1 * sizeof(Material *), "MaterialList");
mesh->mat[0] = material;
mesh->totcol = 1;
test_object_materials(freestyle_bmain, (ID *)mesh);
// vertices allocation
mesh->totvert = visible_faces + visible_segments * 2;
mesh->mvert = (MVert *)CustomData_add_layer(&mesh->vdata, CD_MVERT, CD_CALLOC, NULL, mesh->totvert);
// edges allocation
mesh->totedge = visible_faces * 2 + visible_segments;
mesh->medge = (MEdge *)CustomData_add_layer(&mesh->edata, CD_MEDGE, CD_CALLOC, NULL, mesh->totedge);
// faces allocation
mesh->totpoly = visible_faces;
mesh->mpoly = (MPoly *)CustomData_add_layer(&mesh->pdata, CD_MPOLY, CD_CALLOC, NULL, mesh->totpoly);
// loops allocation
mesh->totloop = visible_faces * 3;
mesh->mloop = (MLoop *)CustomData_add_layer(&mesh->ldata, CD_MLOOP, CD_CALLOC, NULL, mesh->totloop);
// colors allocation
mesh->mloopcol = (MLoopCol *)CustomData_add_layer(&mesh->ldata, CD_MLOOPCOL, CD_CALLOC, NULL, mesh->totloop);
////////////////////
// Data copy
////////////////////
MVert *vertices = mesh->mvert;
MEdge *edges = mesh->medge;
MPoly *polys = mesh->mpoly;
MLoop *loops = mesh->mloop;
MLoopCol *colors = mesh->mloopcol;
v[0] = strip_vertices.begin();
v[1] = v[0] + 1;
v[2] = v[0] + 2;
vertex_index = edge_index = loop_index = 0;
visible = false;
// Note: Mesh generation in the following loop assumes stroke strips
// to be triangle strips.
for (n = 2; n < strip_vertex_count; n++, v[0]++, v[1]++, v[2]++) {
svRep[0] = *(v[0]);
svRep[1] = *(v[1]);
svRep[2] = *(v[2]);
xl = xu = yl = yu = 0;
for (int j = 0; j < 3; j++) {
p = svRep[j]->point2d();
if (p[0] < 0.0)
xl++;
else if (p[0] > _width)
xu++;
if (p[1] < 0.0)
yl++;
else if (p[1] > _height)
yu++;
}
if (xl == 3 || xu == 3 || yl == 3 || yu == 3) {
visible = false;
}
else {
if (!visible) {
// first vertex
vertices->co[0] = svRep[0]->point2d()[0];
vertices->co[1] = svRep[0]->point2d()[1];
vertices->co[2] = get_stroke_vertex_z();
++vertices;
++vertex_index;
// second vertex
vertices->co[0] = svRep[1]->point2d()[0];
vertices->co[1] = svRep[1]->point2d()[1];
vertices->co[2] = get_stroke_vertex_z();
++vertices;
++vertex_index;
// first edge
edges->v1 = vertex_index - 2;
edges->v2 = vertex_index - 1;
++edges;
++edge_index;
}
visible = true;
// vertex
vertices->co[0] = svRep[2]->point2d()[0];
vertices->co[1] = svRep[2]->point2d()[1];
vertices->co[2] = get_stroke_vertex_z();
++vertices;
++vertex_index;
// edges
edges->v1 = vertex_index - 1;
edges->v2 = vertex_index - 3;
++edges;
++edge_index;
edges->v1 = vertex_index - 1;
edges->v2 = vertex_index - 2;
++edges;
++edge_index;
// poly
polys->loopstart = loop_index;
polys->totloop = 3;
++polys;
// loops
if (n % 2 == 0) {
loops[0].v = vertex_index - 1;
loops[0].e = edge_index - 1;
loops[1].v = vertex_index - 2;
loops[1].e = edge_index - 3;
loops[2].v = vertex_index - 3;
loops[2].e = edge_index - 2;
}
else {
loops[0].v = vertex_index - 1;
loops[0].e = edge_index - 2;
loops[1].v = vertex_index - 3;
loops[1].e = edge_index - 3;
loops[2].v = vertex_index - 2;
loops[2].e = edge_index - 1;
}
loops += 3;
loop_index += 3;
// colors
if (n % 2 == 0) {
colors[0].r = (short)(255.0f * svRep[2]->color()[0]);
colors[0].g = (short)(255.0f * svRep[2]->color()[1]);
colors[0].b = (short)(255.0f * svRep[2]->color()[2]);
colors[0].a = (short)(255.0f * svRep[2]->alpha());
colors[1].r = (short)(255.0f * svRep[1]->color()[0]);
colors[1].g = (short)(255.0f * svRep[1]->color()[1]);
colors[1].b = (short)(255.0f * svRep[1]->color()[2]);
colors[1].a = (short)(255.0f * svRep[1]->alpha());
colors[2].r = (short)(255.0f * svRep[0]->color()[0]);
colors[2].g = (short)(255.0f * svRep[0]->color()[1]);
colors[2].b = (short)(255.0f * svRep[0]->color()[2]);
colors[2].a = (short)(255.0f * svRep[0]->alpha());
}
else {
colors[0].r = (short)(255.0f * svRep[2]->color()[0]);
colors[0].g = (short)(255.0f * svRep[2]->color()[1]);
colors[0].b = (short)(255.0f * svRep[2]->color()[2]);
colors[0].a = (short)(255.0f * svRep[2]->alpha());
colors[1].r = (short)(255.0f * svRep[0]->color()[0]);
colors[1].g = (short)(255.0f * svRep[0]->color()[1]);
colors[1].b = (short)(255.0f * svRep[0]->color()[2]);
colors[1].a = (short)(255.0f * svRep[0]->alpha());
colors[2].r = (short)(255.0f * svRep[1]->color()[0]);
colors[2].g = (short)(255.0f * svRep[1]->color()[1]);
colors[2].b = (short)(255.0f * svRep[1]->color()[2]);
colors[2].a = (short)(255.0f * svRep[1]->alpha());
}
colors += 3;
}
} // loop over strip vertices
#if 0
BKE_mesh_validate(mesh, TRUE);
#endif
} // loop over strips
}
