# Tutorials

Hi.

There is an error in the Scene Graph Basics code.

The block:

``` protected void initGame() {     Vector3f[] vertex = new Vector3f[1000];     ColorRGBA[] color = new ColorRGBA[1000];     for(int i = 0; i < 1000; i++) {         vertex[i] = new Vector3f();         vertex[i].x = (float)Math.random() * 50;         vertex[i].y = (float)Math.random() * 50;         vertex[i].z = (float)Math.random() * 50;         color[i] = new ColorRGBA();         color[i].r = (float)Math.random();         color[i].g = (float)Math.random();         color[i].b = (float)Math.random();         color[i].a = 1.0f;         Point p = new Point(vertex,null,color,null);         p.setLocalTranslation(-200,-25,-25);         scene = new Node();         scene.attachChild(p);     } } ```

``` protected void initGame() {     Vector3f[] vertex = new Vector3f[1000];     ColorRGBA[] color = new ColorRGBA[1000];     for(int i = 0; i < 1000; i++) {         vertex[i] = new Vector3f();         vertex[i].x = (float)Math.random() * 50;         vertex[i].y = (float)Math.random() * 50;         vertex[i].z = (float)Math.random() * 50;         color[i] = new ColorRGBA();         color[i].r = (float)Math.random();         color[i].g = (float)Math.random();         color[i].b = (float)Math.random();         color[i].a = 1.0f;     }     Point p = new Point(vertex,null,color,null);     p.setLocalTranslation(-200,-25,-25);     scene = new Node();     scene.attachChild(p); } ```