Path: chuka.playstation.co.uk!news
From: Jim <jim@micronetics.com>
Newsgroups: scee.yaroze.programming.3d_graphics
Subject: Re: Perplexing question
Date: Thu, 24 Apr 1997 02:25:02 +0100
Organization: PlayStation Net Yaroze (SCEE)
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Alex Amsel wrote:
> 
> On Wed, 23 Apr 1997 23:57:44 +0100, Jim <jim@micronetics.com> did
> quoth at me:
> 
> If you find out with GsLinkObject does exactly that would be most
> helpful Jim :) I haven't run a timer over it though so I don't know
> how long it takes to run (not long I shouldn't think). I'm doing
> realtime TMDs with no problem either.

Alex,

	From what I can tell, It just sets a count of primitives for each
group. Presumably so GsSortObject does not need to read the mode, flag,
ilen, olen for every primitive, just the first one.

	Presumably it [GsLinkObject] needs to scan the whole tmd to count the
primitives, so it would be quicker to just increment the first nodes
count every time you add a poly, rather than calling GsLinkObject each
frame.

> 
> I ran into problems with LinkObject when I INCREASED the number of
> polys in the TMD data. I can't remember if this was fixed by recalling
> LinkObject, but I don't think it was. In the end I just declared the
> largest number of polygons possible the 1st time around.

  Did you put in null object in the primitive list to pad it to the
correct size?


Regards

Jim