[osg-users] Converting PrimitiveSet to use triangles instead of triangle strips / fans?

[Julien Valentin]

INDEX_mesh don't reindex indexed 
I fix it on my branch introducing a forceReindex parameter to the IndexMeshVisitor and use it witout an attached Optimizer 


L. Voerman wrote:
> I tend to use set OSG_OPTIMIZER=INDEX_MESH VERTEX_POSTTRANSFORM VERTEX_PRETRANSFORM
> 
> for these, but there might be something else preventing the optimizer from changing your geometry.
> set OSG_OPTIMIZER=STATIC_OBJECT_DETECTION  INDEX_MESH VERTEX_POSTTRANSFORM VERTEX_PRETRANSFORM MERGE_GEOMETRY MERGE_GEODES
> 
> might do the trick
> Laurens.
> 
> 
> On Wed, Aug 15, 2018 at 9:10 AM Jad Killian < ()> wrote:
> 
> 
> > Hi,
> > 
> > When I import a .obj file with readNodeFile, the result is a triangle strip instead of triangles. Even if the .obj file is a simple square with 4 vertices and 2 triangular faces, the resulting primitive set in the geode geometry contains
> > 1 face, 4 indices with mode = 5 (TRIANGLE_STRIP).
> > 
> > I tried using the osg::Optimizer, but it doesn't seem to do anything:
> > 
> > 
> > 
> > Code:
> > osg::ref_ptr<osg::Node> node = osgDB::readNodeFile(filepath.toStdString());
> > 
> > osgUtil::Optimizer optimizer;
> > optimizer.optimize(node, osgUtil::Optimizer::INDEX_MESH);
> > 
> > 
> > 
> > for optimizer flags I tried INDEX_MESH, TESSELLATE_GEOMETRY, DEFAULT_OPTIMIZATIONS, nothing seems to work.
> > 
> > Any ideas?
> > 
> > Thanks
> > 
> > ------------------
> > Read this topic online here:
> > http://forum.openscenegraph.org/viewtopic.php?p=74401#74401 (http://forum.openscenegraph.org/viewtopic.php?p=74401#74401)
> > 
> > 
> > 
> > 
> > 
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> > 
> 
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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=74538#74538