3 Commits

Author	SHA1	Message	Date
Robert Osfield	58c47e9842	From Marc Helbling, "please find enclosed a submission that should improve the VertexAccessOrderVisitor (pre-transform) optimizer: ... * it sorts primitives to keep "more complex" primitives first; maybe you'll prefer to have this as an option (but usually it should make more sense to pre-transform triangles before e.g. lines) * currently, the visitor rely on TriangleIndexFunctor and does not take care of points and lines (see https://github.com/openscenegraph/osg/blob/master/include/osg/TriangleIndexFunctor#L124-130). This can lead to issues e.g. if you store the wireframe lines along with some triangles: the triangles will be reindexed but not the line. I've therefore added osg/include/TriangleLinePointIndexFunctor to index triangles, lines and points and derived VertexReorder from this class. * to avoid issues, shared arrays are duplicated. However, in some cases (e.g. an UV channel shared in the geometry only) this is not required. I'm adding a SharedArrayOptimizer to optimize this: it looks for duplicated UVs before the array duplication and deduplicate arrays after. " git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14603 16af8721-9629-0410-8352-f15c8da7e697	2014-12-16 09:34:15 +00:00
Robert Osfield	14a563dc9f	Ran script to remove trailing spaces and tabs	2012-03-21 17:36:20 +00:00
Robert Osfield	7a44b43474	From Time Moore, "This submission implements 3 optimizations for meshes. INDEX_MESH turns DrawArrays style geometry into DrawElements, uniquifying the vertices in the process. This is useful for certain loaders, like ac3d, which just spit out DrawArrays. VERTEX_POSTTRANSFORM and VERTEX_PRETRANSFORM optimize mesh triangle and vertex order for the caches on a modern GPU, using Tom Forsyth's algorithm. I describe this and the big difference it makes (38% improvement on a very large mesh) in my blog, ... http://shiny-dynamics.blogspot.com/2010/03/vertex-cache-optimization-for-osg.html."	2010-03-11 18:15:20 +00:00