Hi, the problem is that this occurs not only in the first frame and only for relatively large scenes. That may argue far a lack of resources probably not in case of textures but for display lists or VBO's. Is there a way to debug into that? Are there some log messages when resources get released in case of limited resources?
Michael Am 21.03.2011 20:14, schrieb Carsten Neumann: > Hello Michael, > > On 03/21/2011 02:07 PM, Michael Raab wrote: >> we have some perfomance issues when using OpenSG1.8 in our multi display >> projection environment. >> If the displayed content on the render servers changes, e.g. when moving >> or rotating the camera, drops of the frame rate occur. Seems to me that >> resources that are outside the viewing frustum are released and >> realloced once they get back in frustum. Is that correct? > resources on the GPU (textures, display lists, VBOs etc) are allocated > when needed for the first time, so it is possible that these need to be > uploaded/generated when objects enter the view frustum for the first > time. Unless you are low/out of video memory they should not be pushed > off the GPU though - OpenSG will not remove them unless the objects are > destroyed. > >> Do I miss >> something? Do you see something that can improve our situation? >> Hope someone can help. > a simple solution is often to render one frame without frustum culling > to force data uploads. For relatively static scenes (i.e. where there is > a point in time that all/most data is loaded) this is normally sufficient. > > Cheers, > Carsten > > ------------------------------------------------------------------------------ > Colocation vs. Managed Hosting > A question and answer guide to determining the best fit > for your organization - today and in the future. > http://p.sf.net/sfu/internap-sfd2d > _______________________________________________ > Opensg-users mailing list > Opensg-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/opensg-users > ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Opensg-users mailing list Opensg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensg-users
