normalIndexSubstitutes [index] = normalIndex;
}
if (cullFace == PolygonAttributes.CULL_NONE) {
Vector3f oppositeNormal = new Vector3f();
oppositeNormal.negate(normal);
// Fill opposite side normal index substitutes array
return writeNormal(normalsBuffer, transformationToParent, oppositeNormal, index,
oppositeSideNormalIndexSubstitutes, null, PolygonAttributes.CULL_FRONT, false);
} else {
return true;