[JAVA3D] ImageComponent2D( by-Reference ) is "Bad" performance !?

[Greg Huang]

Dear all:   In my case, I have many images to show on one plate. To improve the performance, I use the by-reference ImageComponent2D object in my Texture2D object and implement ImageComponent2D.Updater interface.This is working , but I find that when J3D invokes the updateData method, the execution performance is severely degraded. All the thing what I do only spent 20 ms in the updateData method, but J3D invokes updateData method totally spent 45 ms, why ? and how to solve it ? There is part of my code below.     sincerely   Thanks Greg       /**      * Set texture of geometry by changing texture reference.      * I implement ImageComponent2D.Updater interface in this class.      */     private void changeTextureByRef( )     {         m_Image2D.updateData( this, 0, 0, m_Image2D.getWidth(), m_Image2D.getHeight() );         => this method invoking spent about 45 ms     }       /*      * Updates image data that is accessed by reference.      * m_ObjectImage is a BufferedImage object and      * hold the reference of the image of the texture.     */     public void updateData(ImageComponent2D imageComponent,                            int x,                            int y,                            int width,                            int height)     {           m_ObjectImage = m_ObjectMovie.getTexureImage( m_CurrentIndex, m_ObjectImage );         => this method invoking spent about 15 ms         LISImageUtilities.flipImage( m_ObjectImage );         => this method invoking spent about 5 ms     }