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* added texCoord3d functions to objloader

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* added unittest for texcoords3d
* added texcoord3d support to baseimporter
This commit is contained in:
Martin Schultz
2016-01-05 14:21:46 +01:00
parent 011fdc9700
commit 781063a3c6
5 changed files with 147 additions and 6 deletions
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9
src/OpenMesh/Core/IO/importer/BaseImporter.hh
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@@ -106,6 +106,9 @@ public:
// add texture coordinates per face, _vh references the first texcoord
virtual void add_face_texcoords( FaceHandle _fh, VertexHandle _vh, const std::vector<Vec2f>& _face_texcoords) = 0;
// add texture 3d coordinates per face, _vh references the first texcoord
virtual void add_face_texcoords( FaceHandle _fh, VertexHandle _vh, const std::vector<Vec3f>& _face_texcoords) = 0;
// Set the texture index for a face
virtual void set_face_texindex( FaceHandle _fh, int _texId ) = 0;
@@ -133,6 +136,12 @@ public:
// set vertex texture coordinate
virtual void set_texcoord(HalfedgeHandle _heh, const Vec2f& _texcoord) = 0;
// set 3d vertex texture coordinate
virtual void set_texcoord(VertexHandle _vh, const Vec3f& _texcoord) = 0;
// set 3d vertex texture coordinate
virtual void set_texcoord(HalfedgeHandle _heh, const Vec3f& _texcoord) = 0;
// set edge color
virtual void set_color(EdgeHandle _eh, const Vec3uc& _color) = 0;

31
src/OpenMesh/Core/IO/importer/ImporterT.hh
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@@ -90,6 +90,7 @@ public:
typedef typename Mesh::Normal Normal;
typedef typename Mesh::Color Color;
typedef typename Mesh::TexCoord2D TexCoord2D;
typedef typename Mesh::TexCoord3D TexCoord3D;
typedef std::vector<VertexHandle> VHandles;
@@ -217,6 +218,19 @@ public:
mesh_.set_texcoord2D(_heh, vector_cast<TexCoord2D>(_texcoord));
}
virtual void set_texcoord(VertexHandle _vh, const Vec3f& _texcoord)
{
if (mesh_.has_vertex_texcoords3D())
mesh_.set_texcoord3D(_vh, vector_cast<TexCoord3D>(_texcoord));
}
virtual void set_texcoord(HalfedgeHandle _heh, const Vec3f& _texcoord)
{
if (mesh_.has_halfedge_texcoords3D())
mesh_.set_texcoord3D(_heh, vector_cast<TexCoord3D>(_texcoord));
}
// edge attributes
virtual void set_color(EdgeHandle _eh, const Vec4uc& _color)
@@ -292,6 +306,23 @@ public:
}
}
virtual void add_face_texcoords( FaceHandle _fh, VertexHandle _vh, const std::vector<Vec3f>& _face_texcoords)
{
// get first halfedge handle
HalfedgeHandle cur_heh = mesh_.halfedge_handle(_fh);
HalfedgeHandle end_heh = mesh_.prev_halfedge_handle(cur_heh);
// find start heh
while( mesh_.to_vertex_handle(cur_heh) != _vh && cur_heh != end_heh )
cur_heh = mesh_.next_halfedge_handle( cur_heh);
for(unsigned int i=0; i<_face_texcoords.size(); ++i)
{
set_texcoord( cur_heh, _face_texcoords[i]);
cur_heh = mesh_.next_halfedge_handle( cur_heh);
}
}
virtual void set_face_texindex( FaceHandle _fh, int _texId ) {
if ( mesh_.has_face_texture_index() ) {
mesh_.set_texture_index(_fh , _texId);

29
src/OpenMesh/Core/IO/reader/OBJReader.cc
View File

@@ -290,13 +290,13 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
std::string line;
std::string keyWrd;
float x, y, z, u, v;
float x, y, z, u, v, w;
float r, g, b;
BaseImporter::VHandles vhandles;
std::vector<Vec3f> normals;
std::vector<Vec3f> colors;
std::vector<Vec2f> texcoords;
std::vector<Vec2f> face_texcoords;
std::vector<Vec3f> texcoords3d, face_texcoords3d;
std::vector<Vec2f> texcoords, face_texcoords;
std::vector<VertexHandle> vertexHandles;
std::string matname;
@@ -406,7 +406,6 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
stream >> u; stream >> v;
if ( !stream.fail() ){
if ( userOptions.vertex_has_texcoord() || userOptions.face_has_texcoord() ) {
texcoords.push_back(OpenMesh::Vec2f(u, v));
@@ -415,9 +414,20 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
fileOptions += Options::FaceTexCoord;
}
}else{
//try to read the w component as it is optional
stream >> w;
if ( !stream.fail() ){
if ( userOptions.vertex_has_texcoord() || userOptions.face_has_texcoord() ) {
texcoords3d.push_back(OpenMesh::Vec3f(u, v, w));
omerr() << "Only single 2D texture coordinate per vertex"
// Can be used for both!
fileOptions += Options::VertexTexCoord;
fileOptions += Options::FaceTexCoord;
}
}
}else{
omerr() << "Only single 2D or 3D texture coordinate per vertex"
<< "allowed!" << std::endl;
return false;
}
@@ -553,6 +563,8 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
if (!texcoords.empty() && (unsigned int) (value - 1) < texcoords.size()) {
// Obj counts from 1 and not zero .. array counts from zero therefore -1
_bi.set_texcoord(vhandles.back(), texcoords[value - 1]);
if(!texcoords3d.empty() && (unsigned int) (value -1) < texcoords3d.size())
_bi.set_texcoord(vhandles.back(), texcoords3d[value - 1]);
} else {
omerr() << "Error setting Texture coordinates" << std::endl;
}
@@ -563,6 +575,8 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
if (!texcoords.empty() && (unsigned int) (value - 1) < texcoords.size()) {
face_texcoords.push_back( texcoords[value-1] );
if(!texcoords3d.empty() && (unsigned int) (value -1) < texcoords3d.size())
face_texcoords3d.push_back( texcoords3d[value-1] );
} else {
omerr() << "Error setting Texture coordinates" << std::endl;
}
@@ -609,7 +623,10 @@ read(std::istream& _in, BaseImporter& _bi, Options& _opt)
fh = _bi.add_face(faceVertices);
if (!vhandles.empty() && fh.is_valid() )
{
_bi.add_face_texcoords(fh, vhandles[0], face_texcoords);
_bi.add_face_texcoords(fh, vhandles[0], face_texcoords3d);
}
if ( !matname.empty() )
{