LlRot2Fwd
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(Redirected from LSL llRot2Fwd)
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Description
Function: vector llRot2Fwd( rotation q );| 18 | Function ID |
| 0.0 | Delay |
| 10.0 | Energy |
Computes the orientation of the local x-axis relative to the earth.
Returns a vector that is the forward vector defined by q, i.e. a unit vector pointing in the local positive X direction.
| • rotation | q |
Can be useful to identify the orientation of the local frontal-plane of the prim, since it's x-axis is always perpendicular to this local frontal plane.
Specification
Mathematically equivalent to:
ret = llVecNorm(<1., 0., 0.> * q);
If q is known to be a unit quaternion then it can be simplified as:
ret = <1., 0., 0.> * q;
