LlRot2Up

From Second Life Wiki

Jump to: navigation, search

Template:Needs Translation/LSL/es Template:Needs Translation/LSL/el Template:Needs Translation/LSL/he Template:Needs Translation/LSL/it Template:Needs Translation/LSL/nl Template:Needs Translation/LSL/hu Template:Needs Translation/LSL/no Template:Needs Translation/LSL/da Template:Needs Translation/LSL/sv Template:Needs Translation/LSL/tr Template:Needs Translation/LSL/pl Template:Needs Translation/LSL/pt Template:Needs Translation/LSL/ru Template:Needs Translation/LSL/uk Template:Needs Translation/LSL/zh-Hans Template:Needs Translation/LSL/zh-Hant

Contents

Summary

Function: vector llRot2Up( rotation q );
20 Function ID
0.0 Delay
10.0 Energy

Computes the orientation of the local z-axis relative to the earth.
Returns a vector that is the up vector defined by q, i.e. a unit vector pointing in the positive Z direction

• rotation q

Can be useful to identify the orientation of the local horizontal-plane of the prim, since it's z-axis is always perpendicular to this local horizontal plane.

Specification

Mathematically equivalent to:

ret = llVecNorm(<0., 0., 1.> * q);

If q is known to be a unit quaternion then it can be simplified as:

ret = <0., 0., 1.> * q;

Examples

See Also

Functions

•  llRot2Left
•  llRot2Fwd
•  llRot2Axis
•  llRot2Angle

Deep Notes

This article wasn't helpful for you? Maybe the related article at the LSL Wiki is able to bring enlightenment.