Yes, I believe the Geometry object normally makes copies of all data (coordinates, normals, etc.).
Have you looked into using the by-reference capability provided by the Geometry classes? This allows you to store your data in a particular representation (point array, strips, etc.) and have an Geometry object reference this data. In addition, you can update your data (through the updateData() method) and the update will be reflected in the representation of the Geometry object. Sean -----Original Message----- From: Michael Saunders [mailto:michael@;AMTEC.COM] Sent: Tuesday, November 05, 2002 3:13 PM To: [EMAIL PROTECTED] Subject: [JAVA3D] Best approach for memory intensive data I am resending this message in the hope that the subject line will attract a response unlike my previous post for which I did not receive any responses. When delivering points to a GeometryArray or one of it's subclasses does the Java3D library make copies of this data if display lists are used (when I say "copies" I don't mean the display lists I mean an intermediate representation before the display lists are generated)? If so, is there an interface in Java3D that I can implement so that I don't have this overhead. In other words, my data is represented in a format that is not necessarily in a geometry point, array, or strip format, however, if the Java3D library provided an interface for "fetching" points for building the triangle strips, quad strips, etc I could have my internal model implement this interface and eliminate the extra storage overhead. Looking at the Geometry classes it appears that each of them holds onto their own representation of the data thereby doubling the space requirements. Can I get hold of the source code for the Java3D library so that I could answer some of these questions myself? Thanks, Michael =========================================================================== 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".
