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DrzewieckiDesign avatar image
DrzewieckiDesign asked mihafly commented

Flag animation - glitches after export

Hi.

We are trying to add animated flags, with wind direction and wind speed conditions. The whole animation works fine - the flag rotates with the wind and the animation changes with the wind strength, however, in the sim there are significant glitches in the flag's mesh.

We wonder if this is a sim bug (we do not think so) or perhaps we are doing something wrong here?


scenerydevsblender
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luicid avatar image luicid commented ·
What 3d software are you using ?

I made one in blender and the animation works well

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DrzewieckiDesign avatar image DrzewieckiDesign luicid commented ·
We tried both - 3ds Max and Blender.

Apparently, the solution was to remove one of the animation steps for a low-speed wind. Anyway, it seems like a potential bug to us.

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mihafly avatar image mihafly DrzewieckiDesign commented ·
Hello,

Can you please elaborate on this? I need to remove animation step from xml or from blender? Thx.

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bravoairspace avatar image
bravoairspace answered DrzewieckiDesign commented

This works https://www.fsdeveloper.com/forum/threads/flag-waving-in-the-wind-direction.449666/



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DrzewieckiDesign avatar image DrzewieckiDesign commented ·
The question is about MSFS, not Blender. :)
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Simbol avatar image
Simbol answered DrzewieckiDesign commented

if you using transforms.. you will get problems like this.. only bones + skinning is supported as long as you also use uniform scaling..

S.

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DrzewieckiDesign avatar image DrzewieckiDesign commented ·
Yes, we use bones for that.

The problem seems to be about the interpolation of animation stages.

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tml avatar image tml DrzewieckiDesign commented ·
Once you get it working nicely in MSFS, would you be willing to share a .blend file with *only* the flag, for others to learn from?


Personally, I am not planning to animate flags or other "soft" things (like pilots or other people), but I need to animate a large number of individual relatively simple and trivially moving objects. (The primary and secondary nozzle petals on each of the engines of the aircraft I am working on.) I now have each object animated separately (but using the same name for the NLA track, of course). It would perhaps be simpler and more efficient to have them as one mesh and instead animate the vertices for each petal so that the end effect is the same. On the other hand, what I have now does work.
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DrzewieckiDesign avatar image DrzewieckiDesign tml commented ·

Apparently, the solution was to remove one of the animation steps for a low-speed wind. Anyway, it seems like a potential bug to us.

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