function getBevelVec( pt_i, pt_j, pt_k ) {

		// Algorithm 2

		return getBevelVec2( pt_i, pt_j, pt_k );

	}
@author zz85 / http://www.lab4games.net/zz85/blog

Creates extruded geometry from a path shape.

parameters = {

 size: <float>, // size of the text
 height: <float>, // thickness to extrude text
 curveSegments: <int>, // number of points on the curves
 steps: <int>, // number of points for z-side extrusions / used for subdividing segements of extrude spline too
 amount: <int>, // Amount

 bevelEnabled: <bool>, // turn on bevel
 bevelThickness: <float>, // how deep into text bevel goes
 bevelSize: <float>, // how far from text outline is bevel
 bevelSegments: <int>, // number of bevel layers

 extrudePath: <THREE.CurvePath> // 3d spline path to extrude shape along. (creates Frames if .frames aren't defined)
 frames: <THREE.TubeGeometry.FrenetFrames> // containing arrays of tangents, normals, binormals

 material: <int> // material index for front and back faces
 extrudeMaterial: <int> // material index for extrusion and beveled faces
 uvGenerator: <Object> // object that provides UV generator functions

}