[quake2] Problem with physics and high fps.

Anders Storsveen wakko at generation.no
Wed Mar 16 17:41:15 EST 2005

Has something happened on this problem now? I don't seem to have this  
problem anymore. Not as much that I can immediatly recognise it. I  
remember it being very apparent.

On Thu, 07 Oct 2004 02:17:10 +0200, Anders Storsveen  
<anders at generation.no> wrote:

> I know that the windows-client exhibits some of the same stuff, however  
> it's much worse in linux...
> On Thu, 07 Oct 2004 01:12:05 +0100, Asfand Yar Qazi  
> <email at asfandyar.cjb.net> wrote:
>> 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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