Hal > Just built FG, simgear, OSG from GIT yesterday. My previous build was > from > before the new environment stuff went in. > > 1. The clouds in general look better than in the past. In non-aerobatic > flight > these look very realistic to me. But... > > 2. Clouds rotate in an unrealistic way when doing loops and other > maneuvers > that involve going to/from inverted (loops, half Cuban eights, split S's > ...) > but it does not happen when doing rolls. The clouds will flip over 180 > degrees > at the top and bottom of loops for example. This is actually a long > standing > issue with clouds that has been there for as long as I have been using FG > (since 0.7). From checking the list archives I see that the same basic > algorithm is used for both the old and newer cloud code. > > "Stuart's 3d clouds and mine are based on very similar technology. There > is > a collection of textures for cloudlets, and these are rotated in the > scenery towards the viewer by vertex shaders (I adapted Stuart's shaders > for my purposes, so they are almost identical and I checked that my > modifications did not change the performance significantly)." (From > Thorsten's > note to this list dated 11/17). > > The problem appears to be that the shader that rotates the cloud texture > rotates them from upright to inverted and inverted to upright as the > aircraft > transitions between upright and inverted flight in vertical maneuvers. > This is > clearly wrong. Is it possible to fix this? > > 3. Precipitation for some reason is not deflected by the windshield/canopy > and > goes directly through the windshield/canopy into the cockpit. I am not > sure > if this is an issue with the precipitation code or my model. Is anyone > else > seeing this? >
This has been an issue from the beginning. There is a workaround in FG though, which turns off the rain in internal views, and instead puts a moving rain texture on the canopy. It's not perfect but it is quite a bit better than rain-in-the cockpit. Try the Spitfire IIa to see it in action. The script is generic, and is in data\Nasal\aircraft.nas. I don't think it has been widely adopted though. Vivian ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
