Re: [Flightgear-devel] Moonlight

[Edward d'A. <tru...@gm...>]

On 23 May 2017 at 12:26, Edward d'Auvergne <tru...@gm...> wrote:
> On 23 May 2017 at 11:13, Thorsten Renk <tho...@sc...> wrote:
>> I also start to suspect a log perception model may not have been the best
>> suggestion in this low light regime...
>
> I'll split your sentence here, as it mixes two issues.  I've noticed
> that in the latest FG code (next from today), that the ALS rendering
> of the moonlight is completely off!  This was not the case when I
> wrote the code 2 years ago.  Compare the above fgfs instances with
> different moonphases to the ALS screenshots at
> https://forum.flightgear.org/viewtopic.php?f=47&t=28201&p=271916#p271916.
> Has something changed in the ALS shaders?

I'll take this one back - the rendering is now reasonable.  I don't
know what happened but the first time I turned ALS on at night time in
the new 2017.3.0 branches, the scene graph illumination was far too
great and the illumination was independent of the moon's phase.  This
has somehow now reverted to the correct rendering.  I can now see that
changing the date in-sim does not change the ALS moonlighting.

Regards,

Edward