[JAVA3D] SV: [JAVA3D] TextureLoading with JAI

[Fredrik Lyd�n]

Thanks.

My images are of TYPE_BYTE_INDEX. To which type should I convert in
order to get correct colors in Java3D?

Regards,
Fredrik



-----Ursprungligt meddelande-----
Fr�n: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]F�r Dipasqua, Aldo
Skickat: den 14 januari 2002 14:29
Till: [EMAIL PROTECTED]
�mne: Re: [JAVA3D] TextureLoading with JAI


You might want to use an image converter as shown below.

Aldo


  /**
   * Convert any buffered image to another type of buffered image
   * @param oldImage the image to be converted
   * @param type the image type (e.g. BufferedImage.TYPE_3BYTE_BGR,
etc.)
   * @return the new image of type specified and the of the same
dimension
   */
  public static BufferedImage convertBufferedImageType( BufferedImage
oldImage,
                                                        int type )
  {
    BufferedImage newImage = null;
    if( oldImage != null )
    {
      // No conversion for the same type
      if( oldImage.getType() == type )
      {
        newImage = oldImage;
      }
      else
      {
        // Make a buffered image of type
        newImage = new BufferedImage( oldImage.getWidth(),
oldImage.getHeight(), type );

        // Draw the input image to the new image
        Graphics2D graphics = newImage.createGraphics();
        graphics.drawImage( oldImage, null, null );
        graphics.dispose();
      }
    }

    return newImage;
  }





-----Original Message-----
From: Dipl. Ing. Paul Szawlowski
[mailto:[EMAIL PROTECTED]]
Sent: Monday, January 14, 2002 7:47 AM
To: [EMAIL PROTECTED]
Subject: Re: [JAVA3D] TextureLoading with JAI


I'm ot quite sure about that but there are BufferedImage formats like
BGR
and
RGB. So I suppose that the order of the color bands is reversed. Check
the
BufferedImage typae after reading. To Correct this you will have to go
deeper
into the java.awt.image package. Probably it can be solved by creating
a new
BufferedImage with a SampleModel which defines a new order how the
banks are
mapped to bands. If this is possible you don't have to make a copy of
the
image
data.

regards
Paul

Fredrik Lyd�n schrieb:

> Hi!
>
> I have some problems loading textures with JAI;
>
> PlanarImage planarImage = JAI.create("fileload", fileName);
> Texture texture = new
TextureLoader(planarImage.getAsBufferedImage());
>
> results in incorrect colors (i.e. yellow gets turquoise).
>
> Without using JAI the colors are correct, but the loading is very
slow
> (15 seconds compared to 4 with JAI).
>
> Thankful for any tips!
>
> Regards,
> Fredrik
>
>
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