Path: chuka.playstation.co.uk!news
From: James Russell <jruss@ibm.net>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Accessing screen translated vertices
Date: Sun, 02 Nov 1997 17:03:13 +1300
Organization: PlayStation Net Yaroze (SCEE)
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This is a somewhat strange request - I have a 3D model, and I can access
the vertices just fine. For reasons I won't go into, I also need to
access the vertices AFTER they have been translated into X and Y screen
coordinates (I just need to read, not write).

GsSetLs() sets up the GTE and GsSortObject uses that info to create the
GPU packets necessary - but I just want to convert them to screen
coordinates, not draw the 3D image.

I'm guessing this wouldn't be too hard to do by hand - I've got access
to the vertices and all the necessary matrices. But since there's a
dedicated GTE ready to tackle all that nasty matrix work for me, I
figured SOMEONE must know how to do it.

Does anyone have (even a psuedocode) outline of what GsSortObject does
with the GTE to get those coordinates?

Thanks,

J