Rotating texture around center?

Troubleshooting General Help
1

Hi,

I have a textured Disk

Im trying to rotate the texture around its center … any ideas?



here is my code: the texture is not rotating around the center for some reason  :?


    private Texture t;
    private Matrix3f incr;

        public void init(){
                incr = new Matrix3f();
                TextureState ts = DisplaySystem.getDisplaySystem().getRenderer().createTextureState();
                t = TextureManager.loadTexture(
                    ResourceLocatorTool.locateResource(ResourceLocatorTool.TYPE_TEXTURE, "tex1.jpg"),
                    Texture.MinificationFilter.Trilinear, Texture.MagnificationFilter.Bilinear);
       
                t.setWrap(Texture.WrapMode.Repeat);
                t.setTranslation(new Vector3f());
                t.setRotation(new Quaternion());
                ts.setTexture(t);
        }

        public void update(float tpf){
                 incr.fromAngleNormalAxis(3*tpf, Vector3f.UNIT_Z);

                 t.getRotation().fromRotationMatrix(
                         incr.mult(t.getRotation().toRotationMatrix()));
        }