interpolation/Linear/Rotation

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/LSL

Interpolation/Linear/Rotation

Summary

Function: rotation rLin( rotation x, rotation y, float t );

Interpolates between two rotation values in a linear fashion.
Returns a rotation

• rotation	x
• rotation	y
• float	t

Specification

<lsl>rotation rLin(rotation x, rotation y, float t) {

   float ang = llAngleBetween(x, y);
   if(ang > PI) ang -= TWO_PI;
   return x * llAxisAngle2Rot(llRot2Axis(y/x)*x, ang*t);

} // Released into public domain. By Nexii Malthus.</lsl>

Examples

<lsl> rotation x = llRot2Euler(<0,0,30*DEG_TO_RAD>); rotation y = llRot2Euler(<0,0,90*DEG_TO_RAD>);

rotation z = rLin(x, y, 0.5); // z equivalent to euler rotation of 60 degrees on Z axis</lsl>