Difference between revisions of "LlDetectedTouchNormal"
Jump to navigation
Jump to search
(The correct formula is T = B x N.) |
m |
||
| Line 14: | Line 14: | ||
** The touch has moved off the surface of the prim. | ** The touch has moved off the surface of the prim. | ||
** The event triggered is not a {{LSLGC|Touch|touch}} event. | ** The event triggered is not a {{LSLGC|Touch|touch}} event. | ||
|examples=< | |examples=<source lang="lsl2"> | ||
default | default | ||
{ | { | ||
| Line 22: | Line 22: | ||
} | } | ||
} | } | ||
</ | </source> | ||
|helpers= | |helpers= | ||
< | <source lang="lsl2">touch_start(integer total_number){ | ||
// rotates the prim, so the touched position points upwards | // rotates the prim, so the touched position points upwards | ||
llSetRot(llGetRot()*llRotBetween(llDetectedTouchNormal(0),<0,0,1>)); | llSetRot(llGetRot()*llRotBetween(llDetectedTouchNormal(0),<0,0,1>)); | ||
}</ | }</source> | ||
|related | |related | ||
|also_functions= | |also_functions= | ||
Revision as of 23:59, 21 January 2015
| LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
Summary
Function: vector llDetectedTouchNormal( integer index );| 0.0 | Forced Delay |
| 10.0 | Energy |
Returns a vector that is the surface normal (perpendicular to the surface) where the touch event was triggered. Along with llDetectedTouchBinormal, this information can be used to find the tangent space at the touch location.
| • 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.To find the third tangent vector, cross the binormal with this vector.
Caveats
- If index is out of bounds the script continues to execute without an error message.
- 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 event triggered is not a touch event.
- The avatar's viewer does not support face touch detection.
Examples
default
{
touch_start(integer total_num)
{
llOwnerSay((string)llDetectedTouchNormal(0)); //Says the vector where the touched face is pointing to.
}
}
Useful Snippets
touch_start(integer total_number){
// rotates the prim, so the touched position points upwards
llSetRot(llGetRot()*llRotBetween(llDetectedTouchNormal(0),<0,0,1>));
}
See Also
Events
| • | touch_start | |||
| • | touch | |||
| • | touch_end |
Functions
| • | llDetectedLinkNumber | |||
| • | llDetectedTouchFace | |||
| • | llDetectedTouchST | |||
| • | llDetectedTouchUV | |||
| • | llDetectedTouchPos | |||
| • | llDetectedTouchBinormal |
Articles
| • | Detected |
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)
- Date of Release Server 29-08-2008
- Date of Release Client 16-10-2008
Signature |
|---|
function vector llDetectedTouchNormal( integer index ); |