Explosions cause fps drop and lag-like effect

groovyf · 10-05-2007, 06:34 PM

x1950PRO 512MB, 2GB RAM, Athlon X2 3800+

Since upgrading to latest Cats so TF2 would work, FF is really unplayable on some maps (Well, SD2 for instance)
Whenever there's an explosion, my fps takes a hit by 40fps (ie, 70fps in yard of well, shoot a rocket at wall and for a split second it drops to high 20s). If I'm running/moving when it hits, it's like a mini lag-spike.

Have removed latest drivers (uninstall, safe mode - driver cleaner), and reverted to older drivers (7.5 instead of 7.9) and it's still the same.
Have tried shooting rockets at walls in Dustbowl and not seen this effect at all (not that I've noticed)
Demo pipes are just as ad on SD2/Well, as are grenades... one second I see it, next it's exploded and I get that split second lag cos my frame rates have taken a nose dive.

At DrEvil's suggestion I used +showbudget, and saw that whenever the explosion happened "Swap Buffers" spiked like crazy (to the max of the chart which was 15ms for me)
"Dynamic Light Rendering" gives big spikes on SD2 at bottom ramp area

Pretty much ruins the game for me.
Any ideas?

All the way through beta and once release, I had no issues at all.

groovyf · 10-05-2007, 07:17 PM

Just gone through line by line caesium's cfg and found the one that made the difference was r_dynamic

Setting it to 0 seemed to have done the trick.

10-05-2007, 06:34 PM	#1
groovyf In the clouds Join Date: Mar 2007 Location: Halifax, UK Posts Rated Helpful 0 Times	Explosions cause fps drop and lag-like effect x1950PRO 512MB, 2GB RAM, Athlon X2 3800+ Since upgrading to latest Cats so TF2 would work, FF is really unplayable on some maps (Well, SD2 for instance) Whenever there's an explosion, my fps takes a hit by 40fps (ie, 70fps in yard of well, shoot a rocket at wall and for a split second it drops to high 20s). If I'm running/moving when it hits, it's like a mini lag-spike. Have removed latest drivers (uninstall, safe mode - driver cleaner), and reverted to older drivers (7.5 instead of 7.9) and it's still the same. Have tried shooting rockets at walls in Dustbowl and not seen this effect at all (not that I've noticed) Demo pipes are just as ad on SD2/Well, as are grenades... one second I see it, next it's exploded and I get that split second lag cos my frame rates have taken a nose dive. At DrEvil's suggestion I used +showbudget, and saw that whenever the explosion happened "Swap Buffers" spiked like crazy (to the max of the chart which was 15ms for me) "Dynamic Light Rendering" gives big spikes on SD2 at bottom ramp area Pretty much ruins the game for me. Any ideas? All the way through beta and once release, I had no issues at all. Last edited by groovyf; 10-05-2007 at 07:05 PM.

10-05-2007, 07:17 PM	#2
groovyf In the clouds Join Date: Mar 2007 Location: Halifax, UK Posts Rated Helpful 0 Times	Just gone through line by line caesium's cfg and found the one that made the difference was r_dynamic Setting it to 0 seemed to have done the trick.

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