rec.autos.simulators

Frame rate effects of graphic options

Jeff Antle

Frame rate effects of graphic options

by Jeff Antle » Fri, 09 Jan 1998 04:00:00


> Yesterday, I posted that the CPR patch upped my frame rates from 14 to 22.
> Well after playing, I decided I wasn't happy with that, as 22fps is noticeable
> to the *** eye and doesn' t allow you to run that "perfect lap".

> Well, tonight, I started the game, turned OFF my steering wheel graphic and
> "draw hills", and guess what?  I'm absolutely FLYING.  Over 35fps now.  The
> average human eye can only see between 35-45fps, so suddenly I'm very happy
> with the game.  With a full field on a race start (I started at the rear of
> the field), my fps never dropped below 25fps.

> Please, if you're having frame rate trouble still after patching, try turning
> off these two things I've listed.  I certainly don't have a screamer system
> (P200), but I have a good video card (Velocity 128 PCI) and am hoping this
> will help other people!

> -- Mark

I documented the effect each graphic item has on the frame rate last
night (patch installled).  On my system (P166, 32MB, Pure3D) I try to
run around 20 fps min (that's with most everything all the way on,
except hills and steering wheel graphic).  I found the effect of some of
the graphics items to be:

        graphics option                 fps change
        hills                           7
        trackside objects               4
        map inset                       3
        dashboard                       3
        everything in mirrors           3
        clipping (from 15 to 18)        2
        clipping (from 18 to 21)        2
        clipping (from 21 to 24)        1
        sky texture                     1
        other stuff                     < 1

What I learned from this was that a lot of things I had turned off
actually had a negligible effect on frame rate, so I was happy to
be able to turn them back on.


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