[osg-users] Textured ply file is black when loaded.

julienvalentin51 julienvalentin51 at gmail.com
Thu Jan 23 18:50:27 PST 2020

PLY is a meta format. It means its interpretation is application 
specific...The simple fact to assign its data to osg attribute semantic is 
a nonsense, but it's the most probable application semantic

Le lundi 20 janvier 2020 11:38:08 UTC+1, Tom Pollok a écrit :
> I converted the repaired obj meshmodel from 
> https://groups.google.com/forum/#!topic/osg-users/BBUYMYiWGl8 using 
> MeshLab to a ply file.
> https://owncloud.iosb.fraunhofer.de/owncloud/s/fF6tLLgDCu2xwZk
> Pw: osg
> I can load the ply file using MeshLab and CloudCompare, but when loading 
> the ply file using openscenegraph 3.6.2 then i just get model that is 
> completely black.
> The header defines in a comment that there is a texture file:
> ply
> format binary_little_endian 1.0
> comment VCGLIB generated
> comment TextureFile Wareneingang_material_0_map_Kd.jpg
> element vertex 99428
> property float x
> property float y
> property float z
> element face 186642
> property list uchar int vertex_indices
> property list uchar float texcoord
> property uchar red
> property uchar green
> property uchar blue
> property uchar alpha
> end_header
> But MeshLab did not create an mtl file, however as said, other tools can 
> still load the model.
> For loading i use:
> osgDB::Options* opt = new osgDB::Options;opt->setOptionString("noRotation");osg::ref_ptr<osg::Node> node = osgDB::readNodeFile(pathToPlyFile, opt);

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