• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

Animation stream length vs. key time


Staff member
FSDevConf team
Resource contributor
Hi all,

I'm chasing a bug in MCX where the length of the animation stream is not written correctly in the XANIM file. At the moment MCX takes the length from the frame that is specified in the last key of the animation. But I now realise that in 3DS Max or GMax you can specify a different length for the animation stream as the frame of the last key. Is this something that is sometimes used in complex aircraft models? Or do you modelers typically set the animation stream length at the same value at the frame of the last key?


Resource contributor
I leave them at the GMAX default, which is the same. I assumed FS wouldn't accept anything else.
Last edited: