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
>
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