LlSetSoundRadius

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/LSL

SetSoundRadius

Summary

Summary: llSetSoundRadius, llLinkSetSoundRadius

Establishes a hard cut-off radius for audibility of scripted sounds (both attached and triggered).

llSetSoundRadius

llSetSoundRadius

1 Bug

Function: llSetSoundRadius( float radius );

0.0	Forced Delay
10.0	Energy

• float

radius

–

in meters

llLinkSetSoundRadius

1 Bug

Function: llLinkSetSoundRadius( integer link, float radius );

0.0	Forced Delay
10.0	Energy

• integer	link	–	Link number (0: unlinked, 1: root prim, >1: child prims and seated avatars) or a LINK_* flag
• float	radius	–	in metersin meters

Flag Description LINK_ROOT 1 refers to the root prim in a multi-prim linked set[1] LINK_SET -1 refers to all prims LINK_ALL_OTHERS -2 refers to all other prims

Flag Description LINK_ALL_CHILDREN -3 refers to all children, (everything but the root) LINK_THIS -4 refers to the prim the script is in

Caveats

• This function is a prim property, thus will survive script resets.

Examples

Enable sound cutoff at 4 meters.

llSetSoundRadius(4); //Enable sound cutoff at 4 meters.

Disable sound cutoff.

llSetSoundRadius(0); //Disable sound cutoff.

Notes

Link Numbers

Each prim that makes up an object has an address, a link number. To access a specific prim in the object, the prim's link number must be known. In addition to prims having link numbers, avatars seated upon the object do as well.

• If an object consists of only one prim, and there are no avatars seated upon it, the (root) prim's link number is zero.
• However, if the object is made up of multiple prims or there is an avatar seated upon the object, the root prim's link number is one.

When an avatar sits on an object, it is added to the end of the link set and will have the largest link number. In addition to this, while an avatar is seated upon an object, the object is unable to link or unlink prims without unseating all avatars first.

Counting Prims & Avatars

There are two functions of interest when trying to find the number of prims and avatars on an object.

• llGetNumberOfPrims() - Returns the number of prims and seated avatars.
• llGetObjectPrimCount(llGetKey()) - Returns only the number of prims in the object but will return zero for attachments.

integer GetPrimCount() { //always returns only the number of prims
    if(llGetAttached())//Is it attached?
        return llGetNumberOfPrims();//returns avatars and prims but attachments can't be sat on.
    return llGetObjectPrimCount(llGetKey());//returns only prims but won't work on attachments.
}

See llGetNumberOfPrims for more about counting prims and avatars.

Errata

If a script located in a child prim erroneously attempts to access link 0, it will get or set the property of the linkset's root prim. This bug (BUG-5049) is preserved for broken legacy scripts. Pass 0 to this function to disable it.

See Also

Functions

•	llGetLinkNumber	–	Returns the link number of the prim the script is in.
•	llGetLinkNumberOfSides	–	Returns the number of faces of the linked prim.
•	llTriggerSoundLimited

Deep Notes

History

• llLinkSetSoundRadius Added in SL 0.4.0^[2]

Footnotes

1. ^ LINK_ROOT does not work on single prim objects. Unless there is an avatar sitting on the object.
2. ^ Early release notes were not very accurate or thorough, they sometimes included information about features added in previous releases or failed to include information about features added in that release.

Signature
function void llSetSoundRadius( float radius ); function void llLinkSetSoundRadius( integer link, float radius );