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SubjectRe: Tile Renderers Reply to this message
Posted byJan_Klaassen
Posted on07/28/04 11:00 AM

> > Why? You could simply use a normal tile engine and add some stuff to make
> > clipping efficient, e.g. only parse the needed parts of the tilemap.
> The Megadrive has per line offset... I'm not sure how this effects the choice of
> a line-based renderer and a tile-based renderer... I remember have a bit of a
> nightmare in Final Burn with a tile based one!

It shouldn't, it's not hard to add to either.

> Had anyone actually compared a line-based and tile-based engine and the
> performance difference?
> If it is minimal, is there any great advantage to tile based engines at all??

Yes. For some systems it's handy to queue tiles based on priority before rendering them (e.g. systems with per-tile priorities). If you have a system that has that and masking effects when sprite-sprite priority doesn't match sprite-tile priority, it lets you optimise things more, since you already know which tile priorities you can skip. Ofcourse the sprite bit implies you're rendering everything back-to-front to one buffer and use a z-buffer to get the masking effects. This is what makes of the Cave games run full-speed on a PII-266 in FBA (except Guwange, which has a lot of out of sequence sprites). Note that FBA's cave tile renderer doesn't use queues for row-scroll/row-select modes, since those aren't used in-game, and my lazyness means I didn't optimise the rendering more than needed.

Entire Thread
Subject  Posted byPosted On
*Tile Renderers  finaldave07/26/04 10:21 AM
.*Re: Tile Renderers  erikduijs07/28/04 09:46 AM
..*Re: Tile Renderers  finaldave07/28/04 05:24 PM
...*Re: Tile Renderers  Bart T.07/28/04 09:10 PM
....*Re: Tile Renderers  finaldave07/29/04 07:43 AM
.....*Re: Tile Renderers  Bart T.07/29/04 10:39 AM
......*Re: Tile Renderers  Jan_Klaassen07/29/04 11:32 AM
.......*Re: Tile Renderers  Bart T.07/29/04 02:54 PM
........*Re: Tile Renderers  finaldave07/29/04 06:46 PM
........*Re: Tile Renderers  Jan_Klaassen07/29/04 06:11 PM
.*Re: Tile Renderers  Hyde07/27/04 04:04 PM
..*Re: Tile Renderers  finaldave07/27/04 04:27 PM
.*Re: Tile Renderers  Jan_Klaassen07/27/04 09:58 AM
..*Re: Tile Renderers  finaldave07/27/04 04:22 PM
....Re: Tile Renderers  Jan_Klaassen07/28/04 11:00 AM
.*Re: Tile Renderers  Bart T.07/27/04 00:38 AM
..*Re: Tile Renderers  Stainless01/12/06 11:58 AM