[Flightgear-devel] Rembrandt - Some Feedback
Hello, I updated my FGFS yesterday and today, after a whole while. Of course I tried Rembrandt and I'm impressed- finally shadows again! Rembrandt does work here without any error messages. (DualCore 2,6 Ghz, 4GB RAM, Nvidea GeForce GTX460) What I noticed is, that Anti-Aliasing does not work, and the quality of the shadows is not good yet, though using the 4096px-size. See image [1] below. Changing shadow size at runtime gives me following error message: Warning: detected OpenGL error 'invalid operation' at after RenderBin::draw(..) Sometimes I see some Z-fighting, but can be explained with the strobes/beacon animation. What I do like is, that even the cockpit has now self-shadowing- can look great! See Image [2] below RAM-Usage looks o.k. to me, not much different as before. Framerate-Perfomance is different: With default sceneries, disabled random vegetation and disabled randon objects I get between 30-60fps, depending on view and complexity of the aircraft. With enabled random-vegetation framerates goes down to less than 30-15fps, so about the half I got before. The density of random vegetation is set 1.0. That's something I did not expected, as the 3d-clouds doesn't show this behavior. To my surprise some aircraft does not have any problems with random vegetation enabled: First I thought that if an aircraft has the more faces the more power we need to achieve a good frame rate, but looking at the RAH66 from the forum, the B1b Bone or a converted MSFS-model with about 5vertices it seems not the case. On the other side the C337G or the C172p has a quite bad framerate compared with. Maybe face-numbers, number of objects objects or xml's as reason- I don't know, I will test it deeper and provide the numbers here. The 3d-clouds shows some z-fighting as well, and the draw order seems to be broken. See image [3] below With Rembrandt disabled, some shaders are broken, I already filed a bug-report, and work is going on there. It looks promising, but also still like a long way to go, especially as many aircraft and shaders has to be adapted. [1]http://www.hoerbird.net/fgfs-screen-588.jpg [2]http://www.hoerbird.net/fgfs-screen-586.jpg [3]http://www.hoerbird.net/fgfs-screen-587.jpg Cheers Heiko still in work: http://www.hoerbird.net/galerie.html But already done: http://www.hoerbird.net/reisen.html -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Rembrandt - Some Feedback
With Rembrandt, brightness of the scenery seems to depend on the view's pitch angle a lot. So, when you fly along and pitch up/down heavily (take the ufo), you see the ground becoming brighter and darker. It mainly seems to affect the bright (non-shadow) areas. When pitching up, the ground eventually becomes as dark as the shadows (no contrast), while when pitching down, you see the ground being bright and only the shadows are dark: http://imageshack.us/photo/my-images/837/fgfsscreen.png/ cheers, Thorsten -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Rembrandt - Some Feedback
On Sunday, April 01, 2012 01:45:52 PM ThorstenB wrote: With Rembrandt, brightness of the scenery seems to depend on the view's pitch angle a lot. So, when you fly along and pitch up/down heavily (take the ufo), you see the ground becoming brighter and darker. It mainly seems to affect the bright (non-shadow) areas. When pitching up, the ground eventually becomes as dark as the shadows (no contrast), while when pitching down, you see the ground being bright and only the shadows are dark: http://imageshack.us/photo/my-images/837/fgfsscreen.png/ cheers, Thorsten This sounds (looks) like the gamma is changed with the pitch angle. This would cause the mid-tones to change while the highlites and shadows remain the same. Hal-- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
Re: [Flightgear-devel] Rembrandt - Some Feedback
With Rembrandt, brightness of the scenery seems to depend on the view's pitch angle a lot. So, when you fly along and pitch up/down heavily (take the ufo), you see the ground becoming brighter and darker. It mainly seems to affect the bright (non-shadow) areas. I believe it was fixed by these commits : https://gitorious.org/fg/flightgear/commit/8a382cd536743e4cef5b16b37a11fa1282441c5b https://gitorious.org/fg/fgdata/commit/e5d226b26ff4390cdbc1a47706ff735eb3ad6df9 Nevertheless, I am not able to reproduce this behavior here now. Regards, -Fred -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
