LlDetectedTouchNormal

Function: vector llDetectedTouchNormal( integer index );

Returns a vector that is the surface normal (perpendicular to the surface) where the touch event was triggered.
• integer index – Index of detection information

index does not support negative indexes.
For the touch category of events only. The prim that was touched may not be the prim receiving the event, use llDetectedLinkNumber to check for this; likewise you can use llDetectedTouchFace to determine which face was touched.

Caveats
TOUCH_INVALID_VECTOR is returned when...

• The avatar's viewer does not support face touch detection.
-• To check if face touch detection is supported check the return of llDetectedTouchFace.
• The touch has moved off the surface of the prim.
• The triggering event is not a touch event.
Examples
See Also
Events
• touch_start
• touch
• touch_end
Functions
• llDetectedLinkNumber
• llDetectedTouchFace
• llDetectedTouchST
• llDetectedTouchUV
• llDetectedTouchPos
• llDetectedTouchBinormal

Deep Notes
History
• Introduced in Viewer SVN:870 r92872 Branch:Release Wednesday, 23 July 2008, no server support, no viewer binary released.
• Server support available on preview grid in Second Life Beta Server 1.24, client support in Preview Grid viewer 1.20.15 (93532)