Lagging optics

[Scared_420]

Hey just wondering if this ever happened to anyone. I was on fool's road playing as russia, when i swapped kits, i had a lat and swapped for a medic. After i died i grabbed rifleman with optics and when i zoomed in it became super laggy. I used binoculars and it was the same deal. I had used them previously before swapping and they worked fine. Then i hopped in a tank and zoomed in, it was fine when i zoomed in 2x but when i zoomed 4x it was the same deal. Anybody get that before ?

[waldo_ii]

A copy-paste from another thread where someone complained of VOIP lag instead of FPS lag. The same principles apply.

What is happening is when you switch zooming levels, your field of view is narrowed from, say, 90 degrees to 30 degrees. When you narrow your FOV, you are really displaying less on your screen, and your video card is thinking less. When you zoom back out, your video card has to re-load 60 degrees worth of land, objects, textures, bump maps, etc. Since BF2 uses DX9 instead of DX10, the CPU has to assist in all of these loadings. When you reload all of those textures and models and stuff, your CPU is temporarily overloaded, too busy to process VOIP.

That is why it happens when you change levels of zoom on tanks, binoculars, weapon-mounted optics, etc. You might not encounter this on every type of FOV change, but the reasons behind them all are the same.


Solutions include only hardware updates. Faster GPUs will make the CPU overload time much quicker, even unnoticeable. Faster RAM can also do the same, and a CPU upgrade can help for obvious reasons.

In this case, when you reduce your FOV, your computer may react more drastically in change of framerate than the guy I was responding to earlier. When you reduce your FOV, the game has to load higher resolution models, textures, bumpmaps, etc. for that area. When you were in your standard FOV, those same rocks, trees, buildings, etc. were using lower resolution levels of detail because the game knows you won't see the difference, and uses them because they take up less processing power and memory, increasing performance. When you reduce FOV, the game knows you will notice the change in level of detail, so it loads up the high-res ones. This loading is what causes the framerate drop.