// ------------------------------------------------------------------------------------------------
void COBImporter::ReadMat1_Ascii(Scene& out, LineSplitter& splitter, const ChunkInfo& nfo)
{
if(nfo.version > 8) {
return UnsupportedChunk_Ascii(splitter,nfo,"Mat1");
}
++splitter;
if (!splitter.match_start("mat# ")) {
ASSIMP_LOG_WARN_F( "Expected `mat#` line in `Mat1` chunk ", nfo.id );
return;
}
out.materials.push_back(Material());
Material& mat = out.materials.back();
mat = nfo;
mat.matnum = strtoul10(splitter[1]);
++splitter;
if (!splitter.match_start("shader: ")) {
ASSIMP_LOG_WARN_F( "Expected `mat#` line in `Mat1` chunk ", nfo.id);
return;
}
std::string shader = std::string(splitter[1]);
shader = shader.substr(0,shader.find_first_of(" \t"));
if (shader == "metal") {
mat.shader = Material::METAL;
}
else if (shader == "phong") {
mat.shader = Material::PHONG;
}
else if (shader != "flat") {
ASSIMP_LOG_WARN_F( "Unknown value for `shader` in `Mat1` chunk ", nfo.id );
}
++splitter;
if (!splitter.match_start("rgb ")) {
ASSIMP_LOG_WARN_F( "Expected `rgb` line in `Mat1` chunk ", nfo.id);
}
const char* rgb = splitter[1];
ReadFloat3Tuple_Ascii(mat.rgb,&rgb);
++splitter;
if (!splitter.match_start("alpha ")) {
ASSIMP_LOG_WARN_F( "Expected `alpha` line in `Mat1` chunk ", nfo.id);
}
const char* tokens[10];
splitter.get_tokens(tokens);
mat.alpha = fast_atof( tokens[1] );
mat.ka = fast_atof( tokens[3] );
mat.ks = fast_atof( tokens[5] );
mat.exp = fast_atof( tokens[7] );
mat.ior = fast_atof( tokens[9] );
}
// ------------------------------------------------------------------------------------------------
void COBImporter::ReadLght_Ascii(Scene& out, LineSplitter& splitter, const ChunkInfo& nfo)
{
if(nfo.version > 8) {
return UnsupportedChunk_Ascii(splitter,nfo,"Lght");
}
out.nodes.push_back(std::shared_ptr<Light>(new Light()));
Light& msh = (Light&)(*out.nodes.back().get());
msh = nfo;
ReadBasicNodeInfo_Ascii(msh,++splitter,nfo);
if (splitter.match_start("Infinite ")) {
msh.ltype = Light::INFINITE;
}
else if (splitter.match_start("Local ")) {
msh.ltype = Light::LOCAL;
}
else if (splitter.match_start("Spot ")) {
msh.ltype = Light::SPOT;
}
else {
LogWarn_Ascii(splitter,format()<<
"Unknown kind of light source in `Lght` chunk "<<nfo.id<<" : "<<*splitter);
msh.ltype = Light::SPOT;
}
++splitter;
if (!splitter.match_start("color ")) {
LogWarn_Ascii(splitter,format()<<
"Expected `color` line in `Lght` chunk "<<nfo.id);
}
const char* rgb = splitter[1];
ReadFloat3Tuple_Ascii(msh.color ,&rgb);
SkipSpaces(&rgb);
if (strncmp(rgb,"cone angle",10)) {
LogWarn_Ascii(splitter,format()<<
"Expected `cone angle` entity in `color` line in `Lght` chunk "<<nfo.id);
}
SkipSpaces(rgb+10,&rgb);
msh.angle = fast_atof(&rgb);
SkipSpaces(&rgb);
if (strncmp(rgb,"inner angle",11)) {
LogWarn_Ascii(splitter,format()<<
"Expected `inner angle` entity in `color` line in `Lght` chunk "<<nfo.id);
}
SkipSpaces(rgb+11,&rgb);
msh.inner_angle = fast_atof(&rgb);
// skip the rest for we can't handle this kind of physically-based lighting information.
}
// ------------------------------------------------------------------------------------------------
void COBImporter::ReadUnit_Ascii(Scene& out, LineSplitter& splitter, const ChunkInfo& nfo)
{
if(nfo.version > 1) {
return UnsupportedChunk_Ascii(splitter,nfo,"Unit");
}
++splitter;
if (!splitter.match_start("Units ")) {
LogWarn_Ascii(splitter,format()<<
"Expected `Units` line in `Unit` chunk "<<nfo.id);
return;
}
// parent chunks preceede their childs, so we should have the
// corresponding chunk already.
for(std::shared_ptr< Node >& nd : out.nodes) {
if (nd->id == nfo.parent_id) {
const unsigned int t=strtoul10(splitter[1]);
nd->unit_scale = t>=sizeof(units)/sizeof(units[0])?(
LogWarn_Ascii(splitter,format()<<t<<" is not a valid value for `Units` attribute in `Unit chunk` "<<nfo.id)
,1.f):units[t];
return;
}
}
LogWarn_Ascii(splitter,format()<<"`Unit` chunk "<<nfo.id<<" is a child of "
<<nfo.parent_id<<" which does not exist");
}
// ------------------------------------------------------------------------------------------------
void COBImporter::UnsupportedChunk_Ascii(LineSplitter& splitter, const ChunkInfo& nfo, const char* name)
{
const std::string error = format("Encountered unsupported chunk: ") << name <<
" [version: "<<nfo.version<<", size: "<<nfo.size<<"]";
// we can recover if the chunk size was specified.
if(nfo.size != static_cast<unsigned int>(-1)) {
DefaultLogger::get()->error(error);
// (HACK) - our current position in the stream is the beginning of the
// head line of the next chunk. That's fine, but the caller is going
// to call ++ on `splitter`, which we need to swallow to avoid
// missing the next line.
splitter.get_stream().IncPtr(nfo.size);
splitter.swallow_next_increment();
}
else ThrowException(error);
}
// ------------------------------------------------------------------------------------------------
void COBImporter::ReadChunkInfo_Ascii(ChunkInfo& out, const LineSplitter& splitter)
{
const char* all_tokens[8];
splitter.get_tokens(all_tokens);
out.version = (all_tokens[1][1]-'0')*100+(all_tokens[1][3]-'0')*10+(all_tokens[1][4]-'0');
out.id = strtoul10(all_tokens[3]);
out.parent_id = strtoul10(all_tokens[5]);
out.size = strtol10(all_tokens[7]);
}
// ------------------------------------------------------------------------------------------------
void COBImporter::ReadBasicNodeInfo_Ascii(Node& msh, LineSplitter& splitter, const ChunkInfo& /*nfo*/)
{
for(;splitter;++splitter) {
if (splitter.match_start("Name")) {
msh.name = std::string(splitter[1]);
// make nice names by merging the dupe count
std::replace(msh.name.begin(),msh.name.end(),
',','_');
}
else if (splitter.match_start("Transform")) {
for(unsigned int y = 0; y < 4 && ++splitter; ++y) {
const char* s = splitter->c_str();
for(unsigned int x = 0; x < 4; ++x) {
SkipSpaces(&s);
msh.transform[y][x] = fast_atof(&s);
}
}
// we need the transform chunk, so we won't return until we have it.
return;
}
}
}
// ------------------------------------------------------------------------------------------------
void COBImporter::ReadPolH_Ascii(Scene& out, LineSplitter& splitter, const ChunkInfo& nfo)
{
if(nfo.version > 8) {
return UnsupportedChunk_Ascii(splitter,nfo,"PolH");
}
out.nodes.push_back(std::shared_ptr<Mesh>(new Mesh()));
Mesh& msh = (Mesh&)(*out.nodes.back().get());
msh = nfo;
ReadBasicNodeInfo_Ascii(msh,++splitter,nfo);
// the chunk has a fixed order of components, but some are not interesting of us so
// we're just looking for keywords in arbitrary order. The end of the chunk is
// either the last `Face` or the `DrawFlags` attribute, depending on the format ver.
for(;splitter;++splitter) {
if (splitter.match_start("World Vertices")) {
const unsigned int cnt = strtoul10(splitter[2]);
msh.vertex_positions.resize(cnt);
for(unsigned int cur = 0;cur < cnt && ++splitter;++cur) {
const char* s = splitter->c_str();
aiVector3D& v = msh.vertex_positions[cur];
SkipSpaces(&s);
v.x = fast_atof(&s);
SkipSpaces(&s);
v.y = fast_atof(&s);
SkipSpaces(&s);
v.z = fast_atof(&s);
}
}
else if (splitter.match_start("Texture Vertices")) {
const unsigned int cnt = strtoul10(splitter[2]);
msh.texture_coords.resize(cnt);
for(unsigned int cur = 0;cur < cnt && ++splitter;++cur) {
const char* s = splitter->c_str();
aiVector2D& v = msh.texture_coords[cur];
SkipSpaces(&s);
v.x = fast_atof(&s);
SkipSpaces(&s);
v.y = fast_atof(&s);
}
}
else if (splitter.match_start("Faces")) {
const unsigned int cnt = strtoul10(splitter[1]);
msh.faces.reserve(cnt);
for(unsigned int cur = 0; cur < cnt && ++splitter ;++cur) {
if (splitter.match_start("Hole")) {
LogWarn_Ascii(splitter,"Skipping unsupported `Hole` line");
continue;
}
if (!splitter.match_start("Face")) {
ThrowException("Expected Face line");
}
msh.faces.push_back(Face());
Face& face = msh.faces.back();
face.indices.resize(strtoul10(splitter[2]));
face.flags = strtoul10(splitter[4]);
face.material = strtoul10(splitter[6]);
const char* s = (++splitter)->c_str();
for(size_t i = 0; i < face.indices.size(); ++i) {
if(!SkipSpaces(&s)) {
ThrowException("Expected EOL token in Face entry");
}
if ('<' != *s++) {
ThrowException("Expected < token in Face entry");
}
face.indices[i].pos_idx = strtoul10(s,&s);
if (',' != *s++) {
ThrowException("Expected , token in Face entry");
}
face.indices[i].uv_idx = strtoul10(s,&s);
if ('>' != *s++) {
ThrowException("Expected < token in Face entry");
}
}
}
if (nfo.version <= 4) {
break;
}
}
else if (splitter.match_start("DrawFlags")) {
msh.draw_flags = strtoul10(splitter[1]);
break;
}
}
}
// ------------------------------------------------------------------------------------------------
void COBImporter::LogDebug_Ascii(const LineSplitter& splitter, const format& message) {
LogDebug_Ascii(message << " [at line "<< splitter.get_index()<<"]");
}
