Path: chuka.playstation.co.uk!news
From: "Rikki Prince" <netyaroze@rprince.dircon.co.uk>
Newsgroups: scee.yaroze.beginners
Subject: Re: Order in main display loop
Date: Sun, 19 Sep 1999 01:26:11 +0100
Organization: PlayStation Net Yaroze (SCEE)
Lines: 33
Message-ID: <7s1ahn$lcu14@chuka.playstation.co.uk>
References: <7s08as$lcu11@chuka.playstation.co.uk> <7s18ej$lcu13@chuka.playstation.co.uk>
NNTP-Posting-Host: th-gt142-220.pool.dircon.co.uk
X-Priority: 3
X-MSMail-Priority: Normal
X-Newsreader: Microsoft Outlook Express 5.00.2014.211
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2014.211

> Hi
>
> Check out what each line in your GraphicsLoopStart() and GraphicsLoopEnd()
do.
> You'll see that sprites/objects must be sorted /between/ clearing and
drawing your OT.

What I'm trying to find out is whether you can do 'Draw OT - Clear OT - Sort
Sprites - Loop', or 'Sort Sprites - DrawOT - Clear OT - Loop', rather than
'Clear OT - Sort Sprites - Draw OT - Loop' as it would allow the 'Draw OT -
Clear OT' to be integrated into one fuinction, if you see what I mean. I
both cases, Sort Sprites comes between the Clear OT and the Draw OT, it's
just the loop that is inbetween as well.


Rikki


>    activebuff = GsGetActiveBuff();
>    GsSetWorkBase((PACKET*)GpuPacketArea[activebuff]);
>    GsClearOt(0, 0, &WorldOT[activebuff]);    // initialise OT
>    GsSortSprite(&sprite, &WorldOT[activebuff], 1);    // insert sprite in
OT
>    DrawSync(0);    // wait for completion of all drawing
>    VSync(0);    // wait for next vsync
>    GsSwapDispBuff();    // swap double buffers
>    GsSortClear(0, 0, 0, &WorldOT[activebuff]);    // insert clear sceen
command in OT
>    GsDrawOt(&WorldOT[activebuff]);    // draw OT
> Hope this helps,
>Derek