Periscope "wash" causes huge lag.

[Cue-Ball909]

I've had this issue ever since I started playing SH3 again a few months ago. Whenever I'm looking out the periscope (attack or obs) and it's either underwater or showing the "wet windshield" effect of the water running down the glass, my frame rate takes a huge hit. As soon as that watery effect stops, my frame rate goes back to normal. It's not a huge deal when the weather is nice as the slowdown only happens once each time I raise the scope, and it only lasts a few seconds. However, when the seas are rough it makes using the scope nearly impossible because every time a wave washes over, the frame rate goes down the toilet.

I tried turning down the graphical options (particle effects) and that didn't help any. My machine is a MacBook Pro with an ATI X1600M video chipset. I'm running under XP using Boot Camp - no emulation. I'm using GWX 3.0. I haven't played the stock version on this machine, so I don't know if it happens in the vanilla game or not.

Anyone else ever seen this problem?

[onelifecrisis]

Maybe try lowering AF.

[Cue-Ball909]

Maybe try lowering AF.I'll check that when I get home. I'm not sure what my AF is set at right now, but I don't think it's set very high.

[Paul Riley]

A few settings to check -

-Lower or disable Anti Aliasing (all stages of it,ie.x1,x2,x3,x4)
-Same for Anisotropic Filtering as OLC said
-Enable Trilinear Filtering if you only have Bilinear enabled
-Enable Geometry Instancing (if your card supports that option)
-TOTALLY remove 'wait for vertical refresh' setting,as this forces your games to display screen fps (frames per second) at the same refresh speed as your monitor,irrespective of whether the game can refresh at higher rates.
- Get the latest driver update for your graphics card
- Try and get the latest Direct X version from Microsoft (to the nearest month I mean,not just Direct X 9c,you want the latest monthly update).I noticed by getting this a lot of my games actually had about a 10% performance increase.

Just for the record my card is a Sapphire ATI X800 Pro (256MB) , and still performs well against many high end cards today.I love Sapphire ATI family of cards,never had anything else really :yep: