>
> Wait, this might _not_ be an OSG issue. Earlier this month Torsten
> submitted a patch under the Subject "Update for SenecaII Aircraft"
>
...
>
> Torsten's new SenecaII probably relies on this patch and therefore
> might get displayed semi-transparent because nobody cared about adding
> this patch to FlightGear CVS and the transparency is applied at any
> time,
Yes and no. I placed an simple spheric object around the aircraft that has a
select-anmation. The condition is always false when the patch is not
installed, so it just never shows up in the unpatched version.
The sphere is made of single-sides surfaces, visible only from the inside
(from the aircraft) if the condition is true. Maybe this invisible,
singlesided semitransparent sphere causes this ghost-effect in osg.
This is the StrobesInCloudsHull.xml:
<PropertyList>
<path>StrobeInCloudsHull.ac</path>
<animation>
<type>noshadow</type>
<object-name>StrobeInCloudsHull</object-name>
</animation>
<animation>
<type>alpha-test</type>
<alpha-factor>0.01</alpha-factor>
</animation>
<animation>
<type>select</type>
<object-name>StrobeInCloudsHull</object-name>
<condition>
<!-- if strobes flashes -->
<property>/sim/model/lights/strobe/state</property>
<!-- and view is from the cockpit -->
<equals>
<property>/sim/current-view/view-number</property>
<value>0</value>
</equals>
<!-- visibility is low -->
<less-than>
<property>/environment/effective_visibility-m</property>
<value>100</value>
</less-than>
<!-- but not zero (visibility patch not installed ) -->
<greater-than>
<property>/environment/effective_visibility-m</property>
<value>0</value>
</greater-than>
<!-- after sunset -->
<greater-than>
<property>/sim/time/sun-angle-rad</property>
<value>1.57</value>
</greater-than>
</condition>
</animation>
</PropertyList>
Hope this helps in troubleshooting
Torsten
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