// compute slice vertices with duplication at end point
for (int iR = 0; iR < radialSamples; iR++) {
//final float fRadialFraction = iR * fInvRS; // in [0,1)
final Vector3f kRadial = tempVc.set(afCos[iR], afSin[iR], 0);
kRadial.mult(fSliceRadius, tempVa);
kNormal.set(kSliceCenter.x + tempVa.x, kSliceCenter.y + tempVa.y, kSliceCenter.z + tempVa.z);
kNormal.subtractLocal(center);
kNormal.normalizeLocal();