Franclin Foping wrote on Thursday, July 31, 2008 7:34 AM: > Hi Alberto, > Indeed, that conversion is not possible. Do you know any other algorithms to > retrieve texture coordinates of nodes made of a loaded model? In your > previous post, you mention using indexes but assuming a Geometry node. The > problem here is that here there is no Geometry node so your previous advice > was not a huge boon. I thought that I could use a visitorto retrieve its > Drawable objects, turn them into Geometry objects and use your trick but I > was wrong as it is impossible to convert from Drawable to Geometry. Here is > the situation. Waiting for your reply. F.
If the Drawable's supports(AttributeFunctor&) returns true, you can write a subclass of AttributeFunctor to access the texture coordinates. ShapeDrawable's supports(ConstAttributeFunctor) returns true, so if you have ShapeDrawables you could use that. Something like (untested): class GetTextureCoords : public osg::Drawable::ConstAttributeFunctor { public: void apply(AttributeType type, unsigned int count, const GLbyte* coords) { if (type != TEXTURE_COORDS) return; // coords contains texture coordinates here } // ... other apply() functions ... }; HTH > Alberto Luaces <[EMAIL PROTECTED]> a écrit : > > Hi Franclin, > > El Jueves 31 Julio 2008ES 14:10:13 Franclin Foping escribió: > > retrieve its Drawable objects, convert them to Geometry > > As you have been told earlier, that conversion can only be done if the > Drawable pointer really points to a Geometry object. Otherwise no > conversion > is made and you get a null pointer. > > Alberto -- Bryan Thrall FlightSafety International [EMAIL PROTECTED] _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org