Hi, Le samedi 23 février 2008 à 13:53 -0600, Curtis Olson a écrit :
> Hi Nicolas, > > If I look very close with both snow and rain, I can now see that the > aircraft motion through the falling particles seems to be correct ... > it's subtle and sometimes hard to see depending on the lighting and > background color ... and subtle is probably good for these effects. > > I think what confused me was that even at flying speeds, there is > still a downward elongation of the particles with rain which tricks my > brain into thinking they are falling straight down. If the streaking > could be made opposite the direction of motion some how (???) I think > that may make the visual effect more compelling. I'm not sure if that > makes any sense? > > But the overall effect of the snow and the rain is quite good. Also, > you work to tie this into the metar reports is also very nice. > Question: is it possible to tune the amount of snow/rain? Perhaps a > future update would be to ease slowly into snow/rain rather than make > an abrupt change (if that is possible to do.) In fact, the METAR informations gives only the snow/rain quantity : low, medium, high. You can read these informations in /environment/metar/snow-norm or /environment/metar/rain-norm. The values are "double" : 0, 1/3, 2/3 and 3/3. But, I can simulate a smooth effect... to avoid an abrupt changement. > I think if we could redo the draw order (or change the near clip > plane?) so that precipitation doesn't appear to be inside the cockpit > then I would be happy to see this new effect get committed to cvs, and > we can work on refining some of the subtle perceptual details later. I improve the conversion rain/snow (I don't use the dew point...) I use only the temperature 0°C... it's easier and we don't need know the real temperature when the rain turns off snow... Particulary, if the temperature is between -1 and 1°C... At first, I try to add a clip plane... Then we will be able to try on refining this later... > Best regards, > > Curt. Thanks for your interest about my work... Regards, Nicolas ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
