Can you please elaborate? what do you mean by 'single object' and 'set this up to use buffer objects'?
Do you mean that a single OSG object can hold multiple VBOs or arrays of vertices? Or do you mean to have a single vertex buffer and multiple OSG objects each one using part of that buffer? Chris Hanson wrote: > I think I'd create a single object to represent ALL of the objects of a given > class, eg Lines, PolygonLines, Rectangles, etc. Set this up to use buffer > objects and it will refer to the buffer object to fetch the vertices, > indices, and possibly attributes for the appearance. > > Then on each frame after you have received ALL the data, bulk assemble them > together into memory buffers of vertices and appearance attributes, then > shovel only those buffers to OpenGL once per frame. > > > I assume frustum clipping is probably not your biggest concern, so I'd just > ignore it for the most part by giving each object an artificially large > bounding sphere. > > > > > > > > > On Sat, Jun 1, 2019 at 5:29 AM Yu Qi < ()> wrote: > > > > Hi, > > By the way,the default vertex specification of geometry is displaylist,if > > you need to change vertex frequently,use VAO and VBO. > > > > Thank you! > > > > Cheers, > > Yu > > > > ------------------ > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=76167#76167 > > (http://forum.openscenegraph.org/viewtopic.php?p=76167#76167) > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > () > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > (http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > -- > Chris 'Xenon' Hanson, omo sanza lettere. http://www.alphapixel.com/ > (http://www.alphapixel.com/) > Training • Consulting • Contracting > 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • > GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL > Legal/IP • Forensics • Imaging • UAVs • GIS • GPS • osgEarth • Terrain • > Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • > Android > @alphapixel (https://twitter.com/alphapixel) facebook.com/alphapixel > (http://facebook.com/alphapixel) (775) 623-PIXL [7495] > > ------------------ > Post generated by Mail2Forum ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=76175#76175 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
