Here's how I change texture coordinates: https://github.com/OGStudio/ogs-mahjong-components/blob/0308cd2ed97b001cf5aecea1b5aada839707c5cf/02.Theme/desktop/src/render.h#L184 Note that the function gets osg::Geode that has already been extracted from osg::Node.
Here's a sample class to print whole osg::Node structure (replace log::logprintf with printf): https://github.com/OGStudio/openscenegraph-cross-platform-examples/blob/f692fd8b0886dbdba1d4e99087998e87827056db/features/scene/PrintGraphVisitor.cpp You need to create this class instance and call 'yourNode.accept(instance);' to have the structure printed. On Wed, 8 Aug 2018 at 15:43, Werner Modenbach <werner.modenb...@texion.eu> wrote: > > Hi Mike, > > the loaded node isn't just a single node but a treelike structure where > your actual geode(s) is/are located somewhere in the structure. > What you mean by vertex Id? Each geode contains 1 or more drawables and > each drawable contains a vertex array and eventually texCoordArray(s). > > So you have to identify the geode your vertex is in. Then you can try to > dynamic_cast. Anyway you need to check if your cast returned 0. > > The next problem is the osg::Array. I didn't find a solution for that so > far. If you kno > > Am 06.08.2018 um 16:27 schrieb Mike Blakefiled: > > Hi everyone, I'm new here. > > > > I load an obj file with osgDB::readNodeFile("my.obj") and add it to my > > scene. > > now, given a vertex Id, I'd like to be able to get its UV/Texture > > coordinate. > > > > I can see that osg::Geometry has a getTexCoordArray() method, but > > dynamically casting my node to org::Geometry crashes the program. > > moreover, according to the docs, getTexCoordArray() simply returns a > > pointer to osg::Array, and it's unclear what type the elements of that > > array is (osg::Vec2?) > > ... > > > > Thank you! > > > > Cheers, > > mike > > > > ------------------ > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=74473#74473 > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
