Appearance app = new Appearance( );
. . .
TextureLoader loader = new TextureLoader( "sky.jpg", this );
ImageComponent2D image = loader.getImage( );
. . .
Texture2D tex = new Texture2D( );
tex.setImage( image );
tex.setEnable( true );
tex.setBoundaryModeS( Texture.WRAP );
tex.setBoundaryModeT( Texture.WRAP );
. . .
app.setTexture( tex );