>Thanks for the extract - couldn't actually find it anywhere in the Java3D >bundle though.
It's part of the review package for the 1.3 API specification that you can download from: http://java.sun.com/products/java-media/3D/releases.html#spec_1_3 If you download this and click on the "GeometryArray enhancements" link from the main review page, you will see it. We probably should have also added the comment to the javadoc. -- Kevin Rushforth Java 3D Team Sun Microsystems [EMAIL PROTECTED] >Date: Mon, 3 Dec 2001 15:01:43 -0700 >From: R Vegan <[EMAIL PROTECTED]> >Subject: Re: [JAVA3D] Ques. on GeometryArray.USE_COORD_INDEX_ONLY >To: [EMAIL PROTECTED] > >Thanks Kevin - this is good news. >I did recall that there was a post from the Java3D team to the effect that >the USE_COORD_INDEX_ONLY bit will use glDrawElements() and would prevent >"unindexification" and may also produce enhanced rendering on some >graphics cards. I am actually more interested in the unindexification >part since my geometries are huge and dynamic and I usually indexify them >to conserve memory. The enhanced rendering would, of course, be a bonus. > >Thanks for the extract - couldn't actually find it anywhere in the Java3D >bundle though. > >Regards > >Raj Vaidya > > >>On Mon, 3 Dec 2001 12:01:29 -0800, Kevin Rushforth <[EMAIL PROTECTED]> wrote: > >>The intent is to allow Java 3D to avoid unindexifying the geometry, if >>possible. No guarantee, though. Here is the description from the >>1.3-beta review package: >> >> "...we propose to add a new USE_COORD_INDEX_ONLY flag to the >> vertexFormat in GeometryArray. If the vertexFormat is >> USE_COORD_INDEX_ONLY, then the values in the coordIndex array >> are used as indices into the coord, color, normal, and texCoord >> arrays. The colorIndex, normalIndex, and texCoordIndex arrays >> are ignored. This may perform better in many cases and may >> allow Java 3D to avoid unindexing the IndexedGeometryArray." >> >>Hope this helps. >> >>-- >>Kevin Rushforth >>Java 3D Team >>Sun Microsystems >> >>[EMAIL PROTECTED] >> >> >>>Date: Mon, 3 Dec 2001 11:53:56 -0700 >>>From: R Vegan <[EMAIL PROTECTED]> >>>Subject: [JAVA3D] Ques. on GeometryArray.USE_COORD_INDEX_ONLY >>>To: [EMAIL PROTECTED] >>> >>>Need clarification on the following: >>> >>>By setting the new USE_COORD_INDEX_ONLY capability bit introduced in >>>Java3D 1.3, could one instruct Java3D *NOT* to unindexify >>>indexed geometry before rendering ? It would really help if this is >>>indeed true, but the html doc. does not specifically mention it. >>> >>>Regards >>> >>>Raj Vaidya >>> >>>=========================================================================== >>>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".
