| From: | Alan Buxey |
| Date: | 21 Aug 2000 at 13:20:17 |
| Subject: | Re: G3 & CGFX |
hi,
> > with a 21Mb/s bandwidth - as has been suggested for Mediator - then the most
> > you can get through at 640x480x16bit is 35 fps
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Only if you have to update the whole screen by hand every frame.
> This is not the case... usually, you have already precached the
> most commonly used textures for the level on the card, and you only
> have a very small status bar to update by hand... the rest of the
> scene is generated on the card by the 3D processor from the
> vertex an lighting info sent. So the only real data trnasferred
> is the triangle info and the odd texture not already cached.
> 21MB/s can therefore do 3D MUCH faster than 35 FPS as long as
> the on-card 3D processor is fast and most all the textures are
i wasnt talking about the best the card can do - i was talking about the
most that the BUS will allow to go through in terms of data-rate.
especially of games the do require the whole screen sent. 2D scolling
shootemups etc etc - perhaps they can be improved by using a pseudo-3D
engine - make the scrolling backdrop from large textured triangles instead
and all the other data can be 3D objects.
> The Nintendo 64 sort of falls in this area... ever notice that
> nearly all N64 games are blocky? The N64 cannot process as many
N64 is also plagued by a system that way over-anti-aliases the picture
alan