On Mon, Sep 12, 2011 at 3:55 PM, Thorsten Renk wrote: >>> 3) Antishading > >> If you can provide the parameters of a cloud that is exhibiting the >> problem, that would be most useful. > > Okay, I've decided over the weekend that I'll make my current code > available this week, because there's so much new stuff in which is not > related to the transition to the new rendering system (some new textures, > the detailed cloud-terrain interaction model, ...) that it may even be > interesting for a 2.4 user.
(Apologies if I've missed this already) Are you planning put this into git? > So the new routines will be off by default, but editing a simple flag in > the code will switch them on and then you can study the problems in situ. > > >> 4) Fading in poor visibility > >> Making it a function of visibility should be the way forward. I think >> that's what the gl_Fog.density is supposed to represent, so it may simply >> be a question of modifying the function further. Perhaps it shouldn't be >> exp()? > > Okay, I'll try to come up with a function which works for that. I guess > exp(-d/d0) is the correct parametric form, just d0 should be changed to a > function d0(visibility-m), but I should be able to find a solution if we > agree that this is what we want to modify. > >>> 5) Specify top and bottom shade > >> I'm thinking that we need a top, middle and bottom shade, as the current >> model shades only from the middle of the cloud downwards. > > I see - then let's do it like this. I've got a merge request for simgear in the merge queue to add parameters for min/max bottom/middle/top/shade flighting factors. > Also, I remember I asked this already, but you weren't quite sure then and > the answer you guessed turned out not to be correct: What property > determines the speed at which a given layer drifts? It gets set correctly > when I initialize Local Weather with constant winds, but I'm not sure if > it gets updated when I allow interpolated winds. I've been thinking of > doing Lenticularis clouds by simply assigning them to a different, > unmoving layer - I think that'd be pretty cool. I've had another look. The property is /environment/wind-speed.kt However, the layer only gets updated when the layer height (/environment/clouds/layer[n]/elevation-ft) is subsequently updated. A similar thing happens with the wind direction. -Stuart ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
