[quake2] Problem with physics and high fps.

Asfand Yar Qazi email at asfandyar.cjb.net
Wed Oct 6 20:12:05 EDT 2004

Anders Storsveen wrote:
> There is definantly a problem with high fps and the physics in this  
> client. When I play in windows I generally use cl_maxfps 120 or higher 
> to  get a smooth look and feel to the game. When I tried this in linux, 
> I  noticed that I couldn't do the same jumps and it felt slower. After a 
> bit  of testing, setting low resolutions and cl_maxfps 120 or even 
> better  something like 400 I noticed that if a friend joins me in 
> multiplayer,  either with a windows client or using maxfps 90 he's much 
> faster than me.  If we start at on side of the edge and walk over to the 
> other, he beats me  by a good deal. Also I "float" more in the air... 
> this is a stupid problem  and it makes me boot windows to play. because 
> I don't like playing with  90fps since it isn't that smooth, but I can't 
> play with a handicap it is  to not being able to jump as high.

 From what I know, this is a known 'feature' of id Software 
games.      It's just way the engine's designed.  I know for 
certain that this happens in Quake 3 games, but I'm not sure if 
it is also a 'feature' of Quake 2.  Setting the FPS to certain 
values does funny things to the speed.  I think this is because 
calculations are done in one part of the game in floating point, 
then converted to fixed point (and rounded up at the same time.) 
  The error that results does funny things, like you experienced...

Theres definitely a special max fps rate that will solve your 
problem - what it is though, I ain't got the foggiest...


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