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OBJ Exporter: No "g" lines with empty names 

In the OBJ spec ( http://www.martinreddy.net/gfx/3d/OBJ.spec ), in the section labeled "Grouping" -> "Syntax", the structure of the "g" group statement is defined. Though this statement allows multiple names on a single line, it is unclear whether there must be at least one name on the line. However, the examples don't show any "g" group statements with no names. So, let's be conservative and not write out a "g" group statement that doesn't have a name. These empty "g" statements were prompting an error message from the three.js OBJ loader code.
pull/301/head
Nathan Morse 2014-06-20 16:06:04 -07:00
parent 1c4a8e9017
commit 77faf04aa3
1 changed files with 3 additions and 1 deletions
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4
code/ObjExporter.cpp
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@ -228,7 +228,9 @@ void ObjExporter :: WriteGeometryFile()
// now write all mesh instances // now write all mesh instances
BOOST_FOREACH(const MeshInstance& m, meshes) { BOOST_FOREACH(const MeshInstance& m, meshes) {
mOutput << "# Mesh \'" << m.name << "\' with " << m.faces.size() << " faces" << endl; mOutput << "# Mesh \'" << m.name << "\' with " << m.faces.size() << " faces" << endl;
mOutput << "g " << m.name << endl; if (!m.name.empty()) {
mOutput << "g " << m.name << endl;
}
mOutput << "usemtl " << m.matname << endl; mOutput << "usemtl " << m.matname << endl;
BOOST_FOREACH(const Face& f, m.faces) { BOOST_FOREACH(const Face& f, m.faces) {