Blair,
Check out http://www.j3d.org/faq/textures.html and look at question #2. I
think that may be the closest you can get.
At 06:12 PM 3/19/2001 -0500, you wrote:
>I am using an ImageComponent2D with byReference = true, yet it takes a
>_long_ time to create the ImageComponent2D (on the order of 200ms). My
>assumption is that this means there is some copying or reformatting of data
>going on.
>
>We are trying to put live video on a texture or in a background: we have a
>custom Java3D renderer that puts every frame into a texture or background
>image (similar to the one used to render a movie into a texture). I
>believe the problem is that the format of the buffered image (and image2d)
>is different when coming from the capture card than the movie, so the
>format of data we are feeding to the ImageComponent2D is different.
>
>Is there any way to find out what image format, etc., we need to use on a
>platform (PC or Unix) in order to guarantee that the creation of an
>ImageComponent2D does not do any copying/reformatting of data internally
>when the byReference flag is set?
>
>Or, is there any way we can find out why that is so slow?
>
>thanks.
>
>
>--On Monday, March 5, 2001 11:33 AM -0800 Kelvin Chung
><[EMAIL PROTECTED]> wrote:
>
>>Hi Justin,
>>
>> My mistake in the last email. When byReference = true
>>it should return the same reference, otherwise it is a bug.
>>
>>Thanks.
>>
>>- Kelvin
>>-----------
>>Java 3D Team
>>Sun Microsystem Inc.
>>
>>>X-Unix-From: [EMAIL PROTECTED] Mon Mar 5 11:20:51 2001
>>>MIME-Version: 1.0
>>>Content-MD5: A5XKFNd62H+rPXoJeRpWgw==
>>>Date: Mon, 5 Mar 2001 11:18:14 -0800
>>>From: Kelvin Chung <[EMAIL PROTECTED]>
>>>Subject: Re: [JAVA3D] Raster img handling
>>>Comments: To: [EMAIL PROTECTED]
>>>To: [EMAIL PROTECTED]
>>>
>>>Hi Justin,
>>>
>>>
>>>ImageComponent2D comp =
>>> new ImageComponent2D(ImageComponent.FORMAT_RGB, img);
>>>
>>>In current implementation,
>>>comp.getImage() will not return the same img reference
>>>when byReference = false.
>>>
>>>When byReference = true it may or may not give return
>>>the same reference handle depending on whether the image
>>>format support by underlying native library.
>>>
>>>- Kelvin
>>>---------
>>>Java 3D Team
>>>Sun Microsystems Inc.
>>>
>>>
>>>>X-Unix-From: [EMAIL PROTECTED] Fri Mar 2 22:20:45 2001
>>>>X-Accept-Language: en
>>>>MIME-Version: 1.0
>>>>Content-Transfer-Encoding: 7bit
>>>>Date: Sat, 3 Mar 2001 15:14:26 +1100
>>>>From: Justin Couch <[EMAIL PROTECTED]>
>>>>Subject: [JAVA3D] Raster img handling
>>>>To: [EMAIL PROTECTED]
>>>>
>>>>If I create a new Raster image and pass it an image and
>>>>imagecomponent2D, am I guaranteed that when I ask for them back that
>>>>they will be exactly the same instance?
>>>>
>>>>BufferedImage img = new BufferedImage(rect.width,rect.height,
>>>> BufferedImage.TYPE_INT_RGB);
>>>>
>>>>ImageComponent2D comp =
>>>> new ImageComponent2D(ImageComponent.FORMAT_RGB, img);
>>>>
>>>>Raster ras = new Raster(new Point3f(-1.0f,-1.0f,-1.0f),
>>>> Raster.RASTER_COLOR,
>>>> 0,
>>>> 0,
>>>> rect.width,
>>>> rect.height,
>>>> comp,
>>>> null);
>>>>
>>>>ImageComponent2D comp_2 = ras.getImage();
>>>>BufferedImage img_2 = comp_2.getImage();
>>>>
>>>>
>>>>Ie comp_2 == comp and img_2 == img are both true;
>>>>
>>>>--
>>>>Justin Couch Author, Java Hacker
>>>>http://www.vlc.com.au/~justin/ Java 3D FAQ Maintainer
>>>>http://www.j3d.org/ J3D.org The Java 3D Community Site
>>>>-------------------------------------------------------------------
>>>>"Humanism is dead. Animals think, feel; so do machines now.
>>>>Neither man nor woman is the measure of all things. Every organism
>>>>processes data according to its domain, its environment; you, with
>>>>all your brains, would be useless in a mouse's universe..."
>>>> - Greg Bear, Slant
>>>>-------------------------------------------------------------------
>>>>
>>>>=======================================================================
>>>>==== To unsubscribe, send email to [EMAIL PROTECTED] and include in
>>>>the body of the message "signoff JAVA3D-INTEREST". For general help,
>>>>send email to [EMAIL PROTECTED] and include in the body of the
>>>>message "help".
>>>
>>>========================================================================
>>>=== To unsubscribe, send email to [EMAIL PROTECTED] and include in
>>>the body of the message "signoff JAVA3D-INTEREST". For general help,
>>>send email to [EMAIL PROTECTED] and include in the body of the
>>>message "help".
>>
>>=========================================================================
>>== To unsubscribe, send email to [EMAIL PROTECTED] and include in the
>>body of the message "signoff JAVA3D-INTEREST". For general help, send
>>email to [EMAIL PROTECTED] and include in the body of the message
>>"help".
>
>===========================================================================
>To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
>of the message "signoff JAVA3D-INTEREST". For general help, send email to
>[EMAIL PROTECTED] and include in the body of the message "help".
Mark Ferneau 240-462-6262 (cell)
Director of Adv. Technology 801-437-4608 (efax)
Xtivia Technologies, Inc. 732-248-9399 x629 (NJ office)
[EMAIL PROTECTED] 301-279-5703 (home office)
http://www.xtivia.com/ [EMAIL PROTECTED] (wireless email)
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff JAVA3D-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
