llDetectedTouchUV

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Revision as of 14:11, 8 August 2008 by Viktoria Dovgal (talk | contribs) (<-1, -1, 0> edge case)
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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.

Summary

Function: vector llDetectedTouchUV( integer index );

Returns a vector that is the texture coordinates for where the prim was touched. The x & y vector positions contain the u & v face coordinates respectively (<u, v, 0.0>).

Returns <-1., -1., 0.> if the avatar's viewer does not support this feature.

• integer index Index of detection information

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

Specification

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.

Caveats

  • 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]
  • <-1., -1., 0.> can be returned for a touch just outside the prim edge. To tell this case apart from an unsupported viewer, check if llDetectedTouchFace returns -1 or a valid face.
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Examples

See Also

Events

•  touch_start
•  touch
•  touch_end

Functions

•  llDetectedLinkNumber
•  llDetectedTouchFace
•  llDetectedTouchST
•  llDetectedTouchPos

Articles

•  Detected

Deep Notes

History

Search JIRA for related Issues

Footnotes

  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.

Signature

function vector llDetectedTouchUV( integer index );