I've been using KATL to develop a 8.50 genapt parser for terragear. It
has noticeable sloping in the runways (when you get close to the ground with
the UFO). I would also like a 'worst case' location to test glPolygonOffset
once I get that far.
You can see some progress here:
http://flightgear.org/forums/viewtopic.php?f=5&t=13240
The last post was incorrect, I haven't run into the 64k ushort issue yet -
it's just that the poly base that Curt refers to isn't generated correctly
for the pavement polys yet.
I plan on fixing that this weekend.
On Fri, Sep 9, 2011 at 3:49 PM, HB-GRAL <flightg...@sablonier.ch> wrote:
> Am 09.09.11 19:33, schrieb Curtis Olson:
> > In addition, there is a fairly sophisticated (and I think cool) step
> where
> > we fit a natural curved surface across the airport elevation and used the
> > curved surface instead of raw SRTM points. This eliminates the "noise"
> in
> > the raw data and gives the airport surface a natural looking slope and
> > correct hills and valleys (in most cases.)
>
> Hi Curt
>
> Thank you very much taking time for this.
>
> Now this is very interesting, a curved surface with a natural looking
> slope and correct hills. Can you point me to an example for this ? I
> guess my current examples like KSFO and EHAM etc. do only provide really
> flat areas. I did not see any small hills and valleys in FlightGear
> unless I saw the some "artificial shaders" from Frederic Bouvier
>
> Hm, indeed, for the moment I was only looking to the two dimensional
> triangles and saw that genapts (or terragear) is calculating some small
> areas and probably "unnecessary" triangles like here at KSFO
> http://maptest.fgx.ch/screens/wired.png
>
> There are also a lot of duplicate items, or it looks like in the
> wire-frame view, but maybe this items are just very close to each other ...
>
> Anyway, how do you get the "natural" curved surface without height data
> ? How are you interpolating between points ? I will try to understand
> this. Of course, I should not be that lazy and should have a look to the
> genapts or terragear code instead, right ;-)
>
> Generally I see that I miss some points here with airport generation and
> it is very different from generating shapes for a map.
>
> Cheers, Yves
>
>
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