Thorsten wrote: > > I think that is what we have for now. You can do better by increasing > > your shadow map size to 8192 or 16384, but at the 16384 resolution my > > performance goes into the tank, and at 8192, there are still many > > shadow artifacts due to lack of resolution. (clearly > > blocky/xelated/aliasing edges, something that looks like z-buffer > > fighting for objects further way, etc.) Hopefully this will improve with > future tuning. > > Okay, just to be sure, I've now also compared what I see to the IAR-80 on > Vinson video by Fred and to the Cub flying around Kufstein video by HHS. I'm > seeing a number of issues: > > 1) The shadows around the aircraft have a ragged egde. That I understand is > a function of the shadow map size. I can't go beyond 4096, I get an error on > the console trying to go higher - but 4096 works fine with acceptable > framerates, the edge is just a limit of my GPU and that is okay. > > 2) I see shadows flickering (I tried the Cub cockpit for comparison) when I'm > in level flight where they shouldn't move - the effect is a bit like a shadow > cast by a candle flickering in the wind. In Heiko's video that is sometimes > visible (he doesn't fly straight much, and when the shadows actually move > the effect is masked). I've never seen it in Fred's videos - is it not there, or > just not in the video? Personally, I find that flickering maddening - I've ended > my test flight after 5 minutes because I was starting to get a headache. > > 3) On my box, all three panels in the screen edges show the same image - > not so on Fred's videos - is this the intended behaviour? > > 4) Fred's IAR-80 video has the camera circling around an IAR-80 parked on the > Vinson. I tried to do this as well, but for me the effect comes out very > differently. The amount of shadow I see depends on the angle of the view > axis with the sunlight direction - under some angles I see dark shadows, > under some angles I see no shadows at all whereas in the video the shadows > behave as expected, i.e. they stay the same independent of view angle. > Under some angles (sun in my back) I also get a whiteout of bright textures. I > haven't seen this issue in any of the videos, but it likewise looks very > unrealistic - I watch an object, and as I overfly it, the shadow goes away... >
The disappearing shadow was caused by the sun camera and range animation and was fixed a while back - can you confirm that you are using the very latest fg/sg/fgdata? And it's probably worth checking that you have the very latest nVidia drivers. It looks to me as if you are pushing the very limits of your GPU; I think you might have to accept that you are not going to be able to use the added facilities provided by Rembrandt. Vivian Vivian ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
