Hi,
I just tried to replace SceneView with osgViewer::Viewer to take
advantage of threading. My scene has 3 views of the same scene with
cameras set up like this:
Viewer camera
/ | \
far_cam1 far_cam2 far_cam3
| | |
near_cam1 near_cam2 near_cam3
(POST_RENDER) (POST_RENDER) (POST_RENDER)
\ | /
scene
The viewer camera is only used for clearing. The "near" and "far"
cameras are used to render different depth ranges of my scene to
prevent a lot of z-fighting; each pair of near/far cameras draws into
the same viewport.
With no threading, I use 1 core at 100%. With
CullThreadPerCameraDrawThreadPerContext I use 1 core at 100% and
another core at about 25%. There are still 2 cores that are nearly
unused. The other threading modes do not appear to help.
I tried to trace through the threading code in ViewerBase a little.
In "cameras" (the vector of osg::Cameras) there is only 1 camera, but
I expected to find 7. Is it impossible to have 7 cull threads in this
situation, or am I just setting something up wrong?
- Terry
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
