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Post FlightGear 2020.2 LTS changes

130 bytes added, 14:13, 5 October 2020
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Canvas: https://sourceforge.net/p/flightgear/mailman/message/37042335/
=== Canvas ===
{{See also|Unifying the 2D rendering backend via canvas}}
* currently osgText doesn't work under the ALS pipeline. <ref>https://sourceforge.net/p/flightgear/mailman/message/37042335/</ref> one issue that seems to occur in a few places is missing text elements on cockpit devices ... We all know the issue of osgText not working in OSG &gt; 3.4.2 for text-animations <ref>https://sourceforge.net/p/flightgear/mailman/message/37047266/</ref> We need to find a migration solution for osgText that works with Compositor and newer OSG versions <ref>https://sourceforge.net/p/flightgear/mailman/message/37047567/</ref> ... another option was creating a Canvas for each text animation, but creating a FBO for every small piece of text doesn't sound very performance-friendly. <ref>https://sourceforge.net/p/flightgear/mailman/message/37042457/</ref> We need to find some way to approximate with the old OSG text did<ref>https://sourceforge.net/p/flightgear/mailman/message/37042476/</ref>
* [[Canvas_News#2D_Panels|Remove the 2D panel code in favour of Canvas]] (this requires completing some work to load 2D panel elements as Canvas, from XML) <ref>https://sourceforge.net/p/flightgear/mailman/message/36973988/</ref> (as of 06/2020, Gaétan Allaert is still working on the replacement of the 2D panel by canvas <ref>https://sourceforge.net/p/flightgear/mailman/message/37042351/</ref>) {{Progressbar|60}}<ref>https://sourceforge.net/u/gallaert/flightgear/ci/789f5bdbce10637222ffa25206938947fec4bc64/</ref>
* Remove the C++ HUD in favour of Canvas-based version: this requires some kind of migration script or framework, so we have at least the default UFO HUD available <ref>https://sourceforge.net/p/flightgear/mailman/message/36973988/</ref>
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