Hello,

So I am having this strange problem, which I don't know if it happens to everyone or what but it just seems very odd. I'll be in a crevice where the IC is not visible in any way, shape, or form. I'll face in the direction of the IC and i'll tank down to 12-15 fps. I'll turn around and get a solid 25 fps. Its almost to the point when i'm playing I run sideways and not face the IC just so my FPS won't tank, lol.

I don't know what to do. I use RAEVWD, thought it might be an issue of that. I lowered the uGridDistantCount and it did absolutely nothing. I tried lowering 8x AA 16x AF to 4xAA 8x AF, nothing. And I mean literally no FPS change in any way, maybe ~1-2 fps. That may be because I have an HD5970 and apparently they perform WORSE without AA/AF on.

I just don't know what the issue could be, it's rather annoying as I can't even see the damn city and it's taking my fps down into medium-slideshow mode, and i'll turn 90 degrees and ill be back up at 25-30fps. Does anyone else have these kinds of issues?

Thanks

-J

Using the Streamsight part of Streamline along with the uGridsToLoad and uTreesToLoad may help. Alternatively, don't use the IC parts of RAEVWD (if you are already)

I assume you read the readme of RAEVWD including this part:

03 Imperial City Architecture - Additional meshes for the Imperial City. Most of this material is not used outside of the IC.   The contents of this folder can impose a stiff performance penalty when looking toward the IC.

I've got the exact same problem. I've got Streamline and OSR running, which handles everything just fine usually (Better Cities, Unique Landscapes, QTP3, etc.), but adding in RAEVWD significantly slows things down, particularly when looking at the Imperial City. I have a 5770, by the way. I wasn't sure what the bottleneck was, but if someone with a 5970 is having the same problem, I think it's safe to say it's not the graphics card...

RAEVWD + ? Better Cities ? is supposed to produce this problem. My memory may be off about which the 2nd mod is supposed to be.

Apparently the issue is some LOD that slows things down a bit, and then both RAEVWD and Better Cities add the same LOD so it's there twice with twice the slow down.

I selectively deleted all of the 03 - Imperial City Architecture. Went from ~18 fps in the same spot to ~25 fps which is a VERY nice improvement. Seems the FPS problems I was having in the "crevice" was also due to something else.

I am using BBC as well, and I remember noting that when installing RAEVWD, that's why I didn't use the two optional .esp's. Would be a good thing to add to RAEVWD if that is the case. After deleting those meshes I noticed a very slight decrease in quality, now the IC looks like all the other QTP3-enhanced RAEVWD LOD ruins, etc. I guess BBC and RAEVWD together was doing a double-time LOD on the IC, it looked like a close up QTP3 texture to me from Aleswell, so surely that had something to do with it.

It would be nice to know exactly what LOD files BBC does add to the IC, since I have it OMODED I'm not exactly sure, and the resources come OMOD only I believe.. maybe i'm wrong and i'll have to look into that.

I'm sure there is something else RAEVWD that might be conflicting with BBC LOD, as it seems to happen near other cities as well occasionally. Does anyone know?

Thanks for the replies so far, already has made a great difference.

-J

I'm personally not sure that's a conflict, just using RAEVWD Imperial City Architecture on my non-modded imperial city(I don't use any Better Cities mod) made my Oblivion slow down to a crawl when watching toward the IC(using ATI 4890 here)...

RAEVWD only provides meshes. If you're using the city ESP files, that tells the game to activate the buildings behind city walls.

If BBC has given you optional ESPs to place buildings behind the city walls, use those and deactivate RAEVWD Cities.esp. Otherwise you're likely to double up on all that which could be a significant performance issue.

If we don't activate those city esp files (and not using BC), then no LOD files are created for the IC in the Tamriel worldspace, thus no FPS hit by looking at the IC (but no houses to see within if we manage to look over the walls from some distant position either) - is that correct?

There's no such optional BBC files, but I think that the standard BBC esp files does this automatically - placing the buildings behind the wall in the Tamriel worldspace for TES4LODGen to create distant house objects.

I have never fully understood this, so I guess this is as good a time as any to ask:

1. The optional RAEVWD city esp "activates the buildings behind the city walls" (Arthmoor's quote). Does this mean that the buildings are really placed there, so that if I see over the wall, and are near enough to see the full-version objects, the city is exactly as from inside? Or are the buildings there somehow only for creating the LOD?

2. Since BBC adds the buildings behind the city walls much in the same way as RAEVWD's optional city esp files do (if I am correct), would it work to disable BBC IC plugin when generating the LOD, and then re-enable it afterwards, in order to not have distant LOD objects behind the city walls of the IC?

hey..as far as I know the latest BBC version provides an additional IC lod esp ....the lod buildings are not included in the main esp any longer...( hopefully I am correct ;-()
BBC and RAEVWD are not fully compatible anyway..I noticed some problems with the castle meshes as well when installed BBC Full blood and Mud and RAEVWD...I would recommend to leave the RAEVWD city resources out when using BBC full...that's what I do....for people using different city mods and for the IC it is a bit more tricky....for the IC I use RAEVWD but not esp...so I have the lod of the waterfront buildings but no lod for the IC districts...which really can slow down even good systems.... ( always depends on what other mods are used )

not easy :banghead:

Almost correct. If you don't activate the RAEVWD esp files and you aren't using BBC then the original vanilla LOD buildings will be there and tes4lodgen will pick those up instead.

Though, if you're using Open Cities, this changes things, because then RAEVWD will pick *THOSE* up instead if you've installed the city architecture subpackage. Confused yet?



What onra said. BBC now includes optional esp files to handle LOD for the cities. So it would be unwise to activate both of them.



Bad wording. It places actual buildings, trees, and select large objects behind the city walls in the Tamriel worldspace. So they're really there, and if you can see over the walls from up close, they'll be visible. Vanilla doesn't place trees behind the walls except for Cheydinhal and one tree in Chorrol.



No. LOD is load order dependent and disabling an esp will throw off the index numbers for anything following it when you reactivate the missing plugin. But since BBC has optional LOD files now, just don't activate them.

Thank you for this. I was away this weekend for a wedding so I did not get a chance to reply. I have downloaded the new 4.5.1 of better cities and I am going to test that out.

What confuses me however is that I never used the RAEVWD option .esp's because I used BBC and I read the readme . So, by not enabling those I had the Better Cities LOD for the IC. Ok. I am about to test the new BBC .esp with and without to see the difference it makes.

The question I have...

1. I deleted the Imperial City Architecture files that RAEVWD adds, and as I said above I gained a fair amount of FPS, but I didn't notice ANY visual difference?! Is that because BBC was taking over for that?

That made a huge difference FPS wise but I noticed nothing different. Am I blind or something?

Gah, my mind is tired from the weekend so please forgive my wording, I hope it makes sense

-J