Hi, On Thursday, July 19, 2012 15:32:01 Tim Moore wrote: > The depth-pass-only pass is a well known optimization, but the fact it > is not helping implies that our bottleneck is not in fragment > processing. I've suspected for years that it lies on the CPU, and have > been trying to optimize our scene graph a bit...
It *is* on the cpu. At least for most of the use cases. Every now and then there is an other limit that comes up for specific stuff. But we are *mostly* draw limited. The draws are way too small to be efficient. James and I were talking about this some time ago. I would go even further for the LOD's. In the meantime I have in fgviewer a PagedLOD whole world database tree running. This is similar to osg's marble dataset but carefully designed around our tile structure. Using this I think we can really replace a lot of our fine structured scenery tiles with something more croase that is used for tiles more far away. Drawback with our current codebase: Our integration of the particle systems need to be rethought as this contains geometry with culling disabled which makes a pagedlod just never expire. Switching the particle systems off works pretty good so far. Greetings Mathias ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
