hind lwahhabi wrote:
> I was wondering (worrying would be more exact:)) about the ReadRaster
> method performance.I'm using it to try to take snapshot from a WRL file
> displayed in the vrml_java3D group browser (vrml97player) and in fact
> when i open my jpg files i find them black. No data saved.
There are a number of possible points in this that may not be related to
the read raster method. While I haven't run into this readRaster
problem, we saw similar symptoms with straight 2D screen captures. I
assume you are using Sun's JPEG codec to write the images?
We ran into a number of problems relating saved images relative to the
screen pixel depth. If the screen was set to say 256 colour then that
was the entire bitmap pixel depth that Java allowed for anything. The
result of this (we were taking images from the 2D screen) was the black
picture output you are experiencing. We found that this even sometimes
occurred on 15/16 bit screens where the source image was also a JPEG,
but not a GIF (how odd!).
--
Justin Couch Author, Java Hacker
Snr Software Engineer [EMAIL PROTECTED]
ADI Ltd, Systems Group http://www.vlc.com.au/~justin/
Java3D FAQ: http://tintoy.ncsa.uiuc.edu/~srp/java3d/faq.html
-------------------------------------------------------------------
"Look through the lens, and the light breaks down into many lights.
Turn it or move it, and a new set of arrangements appears... is it
a single light or many lights, lights that one must know how to
distinguish, recognise and appreciate? Is it one light with many
frames or one frame for many lights?" -Subcomandante Marcos
-------------------------------------------------------------------
=====================================================================
To subscribe/unsubscribe, send mail to [EMAIL PROTECTED]
Java 3D Home Page: http://java.sun.com/products/java-media/3D/
