Rotating a linked prim of an attachment..no matter which way I'm facing >_<

First of all, I'm not sure this is even possible as I've never seen it done, so feel free to scorn me for my lack of LSL know how.

I'm building a vehicle attachment (3 in fact, 255 being the per object prim limit) in order to get the requisite amount of detail, set up the bonnet and boot (hood and trunk to some of you) to open and close when clicked. Everything went swimmingly in the sandbox, both did as they were told, no drift, no problems at all.

First time out as an attachment and everything goes haywire, the prims still open and close along the correct axis, but ALSO rotate around another axis, failing to return to their original position when clicked:

http://img137.imageshack.us/my.php?image=juliarotationerrorcv2.jpg

I can see the prim is trying to line up with world axes, or at least it looks that way to my untrained eye.

I'd rather not resort to llSetAlpha if possible, the prims looked so nice when they actually rotated...

Any enlightenment would be much appreciated You might even get a small red car for your trouble

nice work...

possibly the issue you are running into is realted to the prim using the wrong rotation, eg global vs local

llGetRot() * rotation-amount // is global
rotation-amount * llGetRot is local

in Child prims llSetPrimitveParams behaves wrong, see jira SVC-93 for a work around...

there's also some weirdness related to rotations in attachments that I don't remember

if it's a single prim you can try the SUPER simple door script I wrote, not sure if it'll work in an attachment but here it is


I also have some help on basic rotation tasks in my user page on the wiki @

Thank you!

although I don't quite understand why that should work (LSL is a little like sorcery to me) I shall try it when i get home. I'm sure there'll be a stunning moment of revelation when everything becomes crystal clear ^_^

heh it's an order of operations thing with rotations... it matters which you do first, and where you start...

take a book, rotate it 90deg right from the top, then 90 degress up from the right
take another book do the same, but reverse the order... 2 different positions/facings

Oh I see...sort of, anyway.

Your simple door scipt worked perfectly, even in heavy lag.

As soon as I get all 3 versions working properly I'll send you a totally-non-trademark-infringing italian coupé

cool glad it worked, I wasn't 100% because of issues rotating attachments to world relative coordinates... glad to know it doesn't' affect local rotations for fixed position animations. might make a car myself =)

I'm sorely missing my old '84 Pontiac 305 v8 with quadra 4barrel carb, in electric blue... that girl could MOVE =)

Sounds terribly eco unfriendly but damn good fun, there's nothing like the gurgle of a big V8 to make one's hairs stand on end

If you do, IM me in world for anything you might need, I hope to have reliable multi prim wheel rotations sorted out soon.

yup, terribly eco-bad.... but oh so much fun =)

cool, if you do sort that out I'd love to see, I can think of other applications >=)