Particle Systems on HUDs

I was given to believe that it was possible to add particles to a HUD, but no matter what I tweak it doesn't seem to be working. Is this something I've misread or is there something funny with HUD particles that doesn't seem to be documented anywhere?

The simple particle system I'm using is this:

llParticleSystem([
    PSYS_PART_FLAGS,
        PSYS_PART_EMISSIVE_MASK,
    PSYS_SRC_TEXTURE, "",
    PSYS_SRC_PATTERN, PSYS_SRC_PATTERN_ANGLE_CONE, 
    PSYS_SRC_ANGLE_END, PI_BY_TWO,
    PSYS_SRC_BURST_RADIUS, 0.0, 
    PSYS_SRC_BURST_PART_COUNT, 5, 
    PSYS_SRC_BURST_SPEED_MIN, 0.05, 
    PSYS_SRC_BURST_SPEED_MAX, 0.05
]);

It should just shoot particles upwards from the object, works fine in-world, I've tried switching to PATTERN_ANGLE instead but no joy with that either

Is there something I'm missing here?

Particles will not fire from a hud.

To elaborate on Jesse's post, since a HUD attachment is mounted on YOUR client Screen and not really in world it cannot activate particles since it has no world coordiante from which to produce them.

Have the HUD communicate with a non-HUD attachable prim (even an invisible one.) Shoot the particles from the worn prim.

-peekay

This actually has an advantage to it. You can position the target prim anywhere around you to get different particle effects. Such as having it about a meter above your head to rain particles down on you, or down by your feet so the particles fly up around you.

You could even have a couple of prims orbiting you at different heights to get a nice rotating curtain effect out of the particles (something I have seen done to good effect).

In a recent version, doing a particle effect on a HUD actually resulted in the particle effect appearing to emit from the coordinate <0,0,0> in the current sim and being visible to only you!

I don't know if this bug was fixed but it was fun

Actually, that's not *quite* accurate. While it is true that the HUD is only visible (in any form) to the client of the avatar it is attached to, the HUD does have an in-world representation, is simulated, and has the coordinates of the avatar it is attached to, just like any attachment. Thus, it COULD activate particles for the client and, if memory serves, it did at some point back in the past, but it has since been "fixed" to not work anymore (I think giving the effect that Yumi is describing). I would have to try it to be sure, but I think even that behavior was fixed as well so that it does nothing now.

I stand corrected. The way it had been explained to me, i.e. no in world coordiantes, made sense.

heehee. After all of this, it is still just easier saying:

"Particles will not fire from a hud."

I know particles will not emit in chase view.. has anyone tried entering mouselook with a particle fountain attached to their hud?