Hello, > Does anyone know whether FG is unique amongst desktop simulators in > offering this? I have no experience of X-Plane nor FS-X.
Yes, X-Plane 10 also makes use of deferred shading. They just named it Global Lighting/HDR. Framerates aren't better there as in FGFS as now. The difference is only that landinglights there looks much smoother (no hard edges), the same for the shadows. But we have a really good start as a non-commercial product. Very promising, especially as an OpenSource-project. Thanks Fred for your great work! Can't tell about FS-X, but I guess it is a similar technic. > I've noticed significant slowdown on my computer in the following > circumstances: > - Forests (e.g. KHAF). Having not looked at the code, my guess is that > some NodeVisitor for the rending is delving too deeply into the OSG > tree for the random vegetation. > - Urban areas. My guess here is that is purely due to the number of > models being rendered, each of which is casting a shadow. I know that > there are still optimisations to be made, but could I suggest a > property switch to limit shadowing to the user's aircraft? IMO the > self-shadowing in the aircraft cockpit is the most impressive part of > Rembrandt, and the combination of that plus shadowing on the ground > might be an acceptable frame-rate compromise for many users. Agree to Stuart. - Forest seems to need much more perfomance than before. Other things I noticed: - Scenery-terrain seems to cast shadows. Visible especially shortly before dawn or shortly after dusk. Great feature if so, but seems also need a lot of perfomance. Maybe it can be made switchable? - Comparing different aircraft-models showed me, that not the general number of vertices or even faces is the limiting factor, but the number of objects. Especially instruments which makes use of many objects, so using non-shadow animation would be very recommended for instruments. -I do like when scenery objects cast shadows. But Do we need that in a far distance? Maybe we can have a distance limitation additional to Stuarts proposal? To my surprise it isn't very difficult to make aircraft rembrandt-compatible. The combined-shader is already converted and especially the IAR80 looks really cool with shadows. Cheers Heiko still in work: http://www.hoerbird.net/galerie.html But already done: http://www.hoerbird.net/reisen.html ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
