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Emblem-important-red.png Pre-release Documentation Warning!

This function is not available yet. This documentation was written prior to its final release so it may not match the final implementation.


Function: vector llDetectedTouchBinormal( integer index );

Returns a vector that is the surface binormal for a triggered touch event.

• integer index Index of detection information

index does not support negative indexes. For the touch category of events only.


llDetected* functions only work if called from within Detection events (collision, collision_start, collision_end, sensor, touch, touch_start, touch_end) or in functions called by Detection events. They will fail silently and return unusable values if called during other events.


  • If index is out of bounds the script continues to execute without an error message.
  • Events that enable the llDetected* functions always return at least one detected item.
    • Detection events are not raised if there is nothing detected.[1]
    • The detection event's items detected parameter is initially never less than 1.[2]
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See Also


•  touch_start
•  touch
•  touch_end


•  llDetectedLinkNumber
•  llDetectedTouchPos
•  llDetectedTouchFace
•  llDetectedTouchNormal


•  Detected

Deep Notes


Introduced in Viewer SVN:870 r92872 Branch:Release Wednesday, 23 July 2008, no server support, no viewer binary released.
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  1. ^ The exception is no_sensor but it doesn't enable llDetected* functions.
  2. ^ Like all event parameters, the user can overwrite the initial value.


function vector llDetectedTouchBinormal( integer index );