Stuart,

> Sent: 01 May 2013 22:09
> To: FlightGear developers discussions
> Subject: Re: [Flightgear-devel] Tree issues
> 
> On Thu, Apr 25, 2013 at 11:50 PM, Vivian Meazza wrote:
> > I'm using a very recent pull of fgdata with no local mods. The "hat
effect"
> > shows up from low angles in all material modes - regional/global/dds.
> > It's most apparent at EGMH, but can also be seen at KSFO. At higher
> > angles or if I zoom in it disappears from the closer trees - but, like
> > you, I can still see it at longer ranges. The angle/range effect would
> > suggest that it's a mipmap thing - perhaps try a bit more space around
the
> trees in the texture?
> 
> I've just pushed a fix to simgear that reduces the height of the UV
mapping
> by 0.004.
> Please let me know if this fixes the problem.  I expect that some trees
will
> have been slightly "trimmed" by this.  I'll go through the textures and
correct
> them once you and Thorsten confirm the issue is fixed.
> 

I part-solved the screenshot issue. Here's a pic of the "hats" on the middle
distance trees: 

https://dl.dropboxusercontent.com/u/57645542/fgfs-screen-015.png


You have to be really eagle-eyed to spot them, if you change the viewing
angle or zoom in they disappear.

Vivian



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