Difference between revisions of "LlGetRootRotation"

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|spec
 
|spec
 
|caveats=
 
|caveats=
* This fuction incorrectly returns the avatars region rotation when called in an attachment, use the following instead:<br><lsl>//-- replaces the llGetRootRotation Function
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* Returns an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.
llList2Rot(llGetLinkPrimitiveParams( LINK_ROOT, [PRIM_ROT_LOCAL] ), 0)
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* When a seated avatar is in mouselook, its rotation is affected by the camera's rotation. There is no way to get the actual rotation of an avatar while seated in mouselook.
//-- works correctly in all scenarios</lsl>
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* This function incorrectly (but usefully) returns the avatars region rotation when called in an attachment, use the following instead:
 +
 
 +
<source lang="lsl2">
 +
// if called only from the root
 +
    llGetLocalRot();
 +
//  if called from in a linked object
 +
    llList2Rot( llGetLinkPrimitiveParams( LINK_ROOT, [PRIM_ROT_LOCAL] ), 0 );
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// this alternative works correctly in all scenarios
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    llList2Rot( llGetLinkPrimitiveParams( !!llGetLinkNumber(), [PRIM_ROT_LOCAL] ), 0 );
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</source>
 
|constants
 
|constants
 
|examples=
 
|examples=
 
Simple example to set region rotation of child prim in unattached link set
 
Simple example to set region rotation of child prim in unattached link set
<lsl>
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<source lang="lsl2">
 
default
 
default
 
{
 
{
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   }
 
   }
 
}
 
}
</lsl>
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</source>
 
|helpers
 
|helpers
 
|also_functions=
 
|also_functions=

Latest revision as of 02:49, 22 January 2015

Summary

Function: rotation llGetRootRotation( );

Returns a rotation that is the region rotation of the root prim of the object.

Caveats

  • Returns an accurate facing for Avatars seated or in mouselook, but only a rough direction otherwise when called from an attached prim.
  • When a seated avatar is in mouselook, its rotation is affected by the camera's rotation. There is no way to get the actual rotation of an avatar while seated in mouselook.
  • This function incorrectly (but usefully) returns the avatars region rotation when called in an attachment, use the following instead:
//  if called only from the root
    llGetLocalRot();
//  if called from in a linked object
    llList2Rot( llGetLinkPrimitiveParams( LINK_ROOT, [PRIM_ROT_LOCAL] ), 0 );
//  this alternative works correctly in all scenarios
    llList2Rot( llGetLinkPrimitiveParams( !!llGetLinkNumber(), [PRIM_ROT_LOCAL] ), 0 );
All Issues ~ Search JIRA for related Bugs

Examples

Simple example to set region rotation of child prim in unattached link set

default
{
  state_entry()
  {
    //Rotate 45 degrees about Y-axis
    rotation globalRot = llEuler2Rot(<0.0, 45.0, 0.0> * DEG_TO_RAD);
    llSetLocalRot(globalRot / llGetRootRotation());
  }
}

Notes

In an attached object, returns region rotation of avatar NOT of the object's root prim. See special cases of rotation.

See Also

Deep Notes

All Issues

~ Search JIRA for related Issues
   Improve accuracy of avatar's visible rotation

Signature

function rotation llGetRootRotation();