[Flightgear-devel] glTF object centers

[Fernando G. L. <fer...@fg...>]

Hi all,

Recently, Colin brought up the following fact:

 > GlTF knows about blender origin points, and uses them as center for
 > animations, which gets rid of the <center> (which imo was the most
 > painful part of animations).

This behavior is not backwards compatible, which means that if you want 
to port your aircraft to PBR/glTF, you need to change all of your 
animations and origin points. On the flip side, it seems to be much more 
comfortable in the long run (no manual copying of the model origin to 
fill the ⁣<center> tag of the animation) and significantly reduces the 
size of the model XML.

I personally don't have a preference for this, but I'd like to ask 
aircraft developers about their opinion. Basically, it's a matter of 
backwards compatibility vs. commodity for the future.

If you have any friends who are aircraft developers and might have an 
opinion on this but don't use the mailing list, please let them know!

Kind regards,

-- 
Fernando