如何在libgdx中实现catmull样条曲线的光顺

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.CatmullRomSpline;
import com.badlogic.gdx.math.Vector2;

public class MyGdxGame extends ApplicationAdapter {
    private ShapeRenderer shapeRenderer;
    private CatmullRomSpline<Vector2> spline;
    private Vector2[] controlPoints;
    private int segments;

    @Override
    public void create() {
        shapeRenderer = new ShapeRenderer();
        controlPoints = new Vector2[]{
                new Vector2(100, 100),
                new Vector2(200, 300),
                new Vector2(400, 400),
                new Vector2(600, 200)
        };
        spline = new CatmullRomSpline<>(controlPoints, true);
        segments = 100;
    }

    @Override
    public void render() {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        shapeRenderer.begin(ShapeRenderer.ShapeType.Line);
        shapeRenderer.setColor(0, 0, 0, 1);

        for (int i = 0; i < segments; i++) {
            float t = (float) i / segments;
            spline.valueAt(tmpVector, t);
            shapeRenderer.point(tmpVector.x, tmpVector.y, 0);
        }

        shapeRenderer.end();
    }

    @Override
    public void dispose() {
        shapeRenderer.dispose();
    }
}