public static boolean equalsEpsilon(Vector3f v1, Vector3f v2) {
        return FastMath.abs(v1.x - v2.x) < EPSILON
                && FastMath.abs(v1.y - v2.y) < EPSILON
                && FastMath.abs(v1.z - v2.z) < EPSILON;
    }
Parse a json input stream and returns a {@link JsonObject}
@param stream the stream to parse
@return the JsonObject
jme3-plugins/src/gltf/java/com/jme3/scene/plugins/gltf/GltfUtils.java