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q2guy

Fixed time increment

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I want to know what fps games and physic engines of the following list use fixed time increment: Quake2,3 Max payne 2 (havok) Unreal 2 (Karma) Half life 2 (havok) Doom 3 Havok Mathengine/Karma Ode Tokamak thanks [edited by - q2guy on February 22, 2004 2:09:58 PM]

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Guest Anonymous Poster
I believe that doom 3 will use a fixed step at 60 hz.

ODE and Tokamak can be used either with fixed or variable steps. Not sure about havok

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screen refresh will be fixed to 60Hz in Doom3 ?!? I hope that the game hasnt too much levels, 60Hz is a eyes killer %P

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He is talking about update frequency of the game. It has nothing to do with the refresh rate of your monitor. No need to worry. Your eyes wont hurt

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Guest Anonymous Poster
oh, I misunderstand him, because 60Hz is so similar to monitor frequency.
So doom3 physics will use a 0.016 seconds fixed step? isn''t too little value ?

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I''ve worked extensively with karma/mathengine and you update it with a call like MdtWorldStep(float timestep). So it''s variable to the user. I guess internally it could be doing a fixed timestep of 0.01s or so the required number of times for the user''s value but it seems unlikely!

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