diff --git a/Doc/tutorial_08.docu b/Doc/tutorial_08.docu
index 90ecc22b..d22cc195 100644
--- a/Doc/tutorial_08.docu
+++ b/Doc/tutorial_08.docu
@@ -22,12 +22,28 @@ distinguish between
- Options::VertexColor
- Options::FaceNormal
- Options::FaceColor
+ - Options::FaceTexCoord
- Options::ColorAlpha
- Options::ColorFloat
- Options::Custom
-
+
These bits have different effects when reading or writing. The file
format itself is selected by the extension of the filename.
+
+Please take into account, each mesh has to request the standard property before loading with the corresponding option.
+For instance, if you enable Options::VertexNormal, your mesh has to request vertex normals. Otherwise, they will not be written into the mesh.
+
+\note Face Tex Coords will not be saved as a property per face, but as a property per halfedge. Therefore, you have to request the "halfedge_texcoords2D" property
+
+The OBJ-reader can also read information about the textures in the *.mtl file, if available.
+These texture information (includes texturename and index) will be saved in the property of type:
+\code OpenMesh::MPropHandleT< std::map< int, std::string > > \endcode
+with the name:
+\code "TextureMapping" \endcode
+If you want to use the texture information, you have to request this custom property in your mesh
+before loading it with the obj reader. There is no other option you have to define for reading texture information beside of the request of the property.
+
+
Below in the table you can see what options are suported by which reader/writer (it is possible that the data format can support more).
ASCII is not a real option and will be selected, if binary was not defined.
@@ -47,7 +63,7 @@ ASCII is not a real option and will be selected, if binary was not defined.
\li defined with vc (e.g. used by meshlab)
\li colors encoded in a vertex line (v followed by 6 values)
-\**) only ascii version and only vertex and face properties with fundamental types
+\**) only ascii version and only vertex and face properties with fundamental types. Take into account, that you don't have to request these custom properties before loading.
\***) no reader exists