自定义顶点绘制纹理

自己指定顶点坐标，绘制图形，左上为00，右下为1

public class Test extends Group {
    private float[] fx = new float[20];
    private Image image;
    public Test(){
        image = new Image(new Texture("tou.png"));
        addActor(image);
        setSize(image.getWidth(),image.getHeight());
    }

    @Override
    public void draw(Batch batch, float parentAlpha) {
        float whitebits = Color.WHITE.toFloatBits();
        fx[0] = getX();
        fx[1] = getY();
        fx[2] = whitebits;
        fx[3] = 0F;            // u v
        fx[4] = 1F;
        fx[5] = getX();
        fx[6] = getY() + getHeight()/9;
        fx[7] = whitebits;
        fx[8] = 0F;
        fx[9] = 0F;
        fx[10] = getX() + getWidth();
        fx[11] = getY() + getHeight();
        fx[12] = whitebits;
        fx[13] = 1F;
        fx[14] = 0F;
        fx[15] = getX() + getWidth();
        fx[16] = getY();
        fx[17] = whitebits;
        fx[18] = 1F;
        fx[19] = 1F;
        batch.draw(((TextureRegionDrawable)(image.getDrawable())).getRegion().getTexture(), fx, 0, 20);
    }
}

效果