On Friday 20 January 2012 15:01:35 Torsten Dreyer wrote:
> > The shader scales the texture with windspeed and rotates it to get the
> > right orientation, but the actual rate those change is too quick to look
> > good, and gives the impression of very high speed, that's why I
> > suggested a longer interpolation time for the values passed to the
> > shader, and to avoid doing the interpolations in the shader itself (as
> > that would hit performance).
> >
> > Only the two values of wind-from-north-fps and wind-from-east-fps are
> > the ones that need this applied, as everything else is derived from
> > these.
> OK - that explains the impression of fast movements during wind-speed
> changes. I have now added a time based interpolation to the wind vector
> components in /environment/sea/surface/wind-from-XXX-fps. I made the
> timing configurable at runtime in
> /environment/sea/surface/config/wind-filter-time which sets the
> filter-time for both exponential filters.
> This is initialized to 60 in FGDATA/Environment/environment.xml and
> looks reasonable to me. You might want to play around with that value
> and we can adjust it if desired.
>
> Along with this commit, I cleaned up water.eff and flutter.eff files
> from unused properties wind-from-(heading-)deg which seemed to be
> unused. Please check if that was correct.
>
> The relevant commit is 2071a3297c9bc3a7f8df397fd8acaa71bc110f06 in fgdata.
>
> Torsten
>
Hi,
Sorry previous reply was written before receiving this, I will play around
with the wind-filter-time prop.
Emilian
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