Butterfly wings flapping script needed

I have been looking for a script to make butterflies or bird wings flap. I have tried a few of them that was posted on the forums and it didnt work. if anyone has a working script that they will share or has one for sale please let me know.
Thanks

how big are your butterflies? if they are small (butterfly sized) then using alpha flickering would probably be easiest.

3 prims, one flat, 2 angled + 1 flat butterfly texture

split the textutexture for the angled parts (horizontal repeats 2, horizontal offset .25 or -.25)

this script in the flat prim

integer gBooSwap = TRUE;
      
default{
  state_entry(){
      	llSetTimerEvent( 0.1 );
  }
      
  timer(){
      	llSetLinkAlpha( LINK_THIS, (float)gBooSwap, ALL_SIDES );
      	llSetLinkAlpha( LINK_ALL_OTHERS, (float)gBooSwap, ALL_SIDES );
      	gBooSwap = !gBooSwap;
  }
}

if you're looking for something a bit different, IM me inworld, and I'll be happy to help (I think that works, I made it off the top of my head, untested)

Something like that script should work. Basically, the idea is to give your bird 4 wings, or even 6 wings. Then, every 1/10 of a second, make 4 of them invisible (transparent) and the other 2 visible. This is much cleaner and easier than acutally moving the wings.

using timer also makes the script a good indicator of time dialation within the sim... if they aren't flapping, time dilation (or local 3d card lag) just went up alot =)

also, could make them both into doors (effectively) that move based on time instead of touch, and have them 'open' in opposite directions, same speed, etc.

door meaning the 'rotate aroud a pole/hinge' kind

llSetLinkAlpha, delay = 0.0
llSetLinkPrimitiveParams, delay= 0.2
llSetRot, delay = 0.2

for fast rates, and small objects, alpha is the champ, for larger stuff.... large alpha pieces may get in the way, and you can probably slow down anyways, llSet LinkPrimitiveParams is prolly better, with rotated/cut prims sot you can make one LINK_ALL_OTHERS call