Hi All, Thanks very much for the quick feedback.
>From the immediate feedback, it looks like the performance issues are more significant than I had thought, and I need to look at improving performance and reducing the memory footprint before we can reasonably switch this on by default. More detailed responses below. -Stuart On Sat, Jun 9, 2012 at 9:06 PM, Vivian Meazza wrote: > Here, with Win7(32), the cost in memory is such the FG won't start reliably > at KLAX with Random Objects, Random Veg, and Random Buildings set to true > and = 1. Any 2 out of the 3 are OK. Add Advanced Weather and FG reliably > crashes out-of-memory. Much as I like Random Buildings, I would be very > cautious about going down this route, as I think we're pushing the envelope > here. OK. I was under the (false) impression you were running out of memory at much higher building densities. I agree that by default we should at least be able to start! On Sat, Jun 9, 2012 at 9:08 PM, Gijs de Rooy wrote: > Tested with the UFO, Rembrandt disabled, looking at downtown San Francisco > (plenty of buildings in view). > With KSFO being our default airport, users are very likely to see those > large chunks of urban areas. See my > forum profile for system specs. > > Building level, followed by the average fps: > > 0.00 : 140 > 0.25 : 130 > 0.50 : 115 > 0.75 : 80 > 1.00 : 65 > 2.00 : 40 > > It's neither linear nor exponental... Don't know what to advise now. It > starts to look nice from 1.0 onwards, > but halfing the framerates is quite something. Apart from all the last value, those are all higher frame-rates than I get. Lucky you! Nevertheless, a halving of frame-rates is significant. Out of interest, do you have it enabled by default now? I'm interested to know whether you consider the frame-rate hit acceptable for the extra eye-candy. On Sat, Jun 9, 2012 at 9:10 PM, Heiko Schulz wrote: > Today I made a simple flight from KLAX to KSFO with the 777-200ER with > scenery downloaded from TerraSync (TerraSync itself disabled), skydome-shader > enabled, random buildings enabled (density =1), trees enabled (density =1), > fair weather without (!) 3d-clouds and default materials.xml. > > After just mid distance I got the first error messages and the buildings went > black. Coming again to city area everytime a tile had to be loaded the sim > freezed for several seconds. What error messages are you seeing? > I must admit I expected a better behavior. > What I noticed, different to the trees, the distance of loading random > building increases together with the visibility while the trees has a limited > range. > > Would be something possible as well for random buildings? And if so, would it > help in this issue? I think you are seeing different visibility ranges being used for buildings compared to trees, rather than different loading distances. At present, the buildings have a fixed LoD range (20km IIRC), which I should fix. -Stuart ------------------------------------------------------------------------------ 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
