Hi Andrey, On 6 January 2012 11:21, Andrey Ibe <[email protected]> wrote: > Hello, Robert and thank you for the swift reply. > > The scene is quite simple, it's actually just a room with a mirror, table and > a couple of spherical objects. > There are 126 drawables (all are fast drawables), 16k vertices and 5.3k > triangles. > I have just tried building the app with -O3 -DNDEBUG instead of -g3 -ggdb > with the same app running time result.
Nothing sounds outwards suspicious. > Can there be something wrong with my compiler / OSG libraries ? i am using > OSG 3.x and GCC 4.5.0 (mingw on windows). i do not know where to look for the > problem, that is my problem :) >From the sound of it it doesn't sound like a compile issue. Could you provide a screenshot of the scene in wireframe mode? I do wonder if most of your objects are very simply so intersected them won't be speeded up by the use of KdTree. The KdTree's are built per Drawable and will only really help performance for the highly tessellated geometries. For a specialist application that does ray tracing it might be best to implement a intersector, one that batches the ray intersections into groups of rays and does the intersection traversal down the scene graph uses this batches. It also might be appropriate to write a custom KdTree generator that builds a single tree from all the triangles in the whole scene graph rather per Drawable and the intersection done directly on this. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
