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Massive lag in Tutu?


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So I recently reinstalled BG1 via Tutu after playing it via BGT. All was going pretty well until I headed north from the Friendly Arm Inn to the ankheg farmland, where I immediately began experiencing incredibly terrible lag and hitching. I'd click somewhere for my party to move, they'd start moving very slowly and then the screen would stop rendering new frames, but sound would play and they'd continue to move and all that. It basically renders the game nearly unplayable, and a single squad of hobgoblins almost wiped me out due to being unable to react. Figuring it was just some kind of script lag with that particular area, I moved on down to Beregost... where it hit again, though not as bad. I flipped cheats on and zipped about to various different places and got minor to no lag in most, but that farmland, Nashkel, the carnival, the gnoll fort, all those places had that terrible lag and hitching.


I ran with a very similar mod setup in BGT and had absolutely zero issues like this, so I uninstalled my mods one at a time from newest on back and reloaded my Beregost save after each one to see if I could find the cause, and all traces of slowdown disappeared as soon as I removed SCS. I've decided to go ahead and uninstall everything else to reinstall, but before I do I was wondering if there was anything that could have possibly been mucked up in my install order? I did a lot of research into it using the Tutu Mod Compatibility and the Rogue Rebalancing compatibility guides as references, so I think I got it mostly correct, though I could always be wrong.


Here's my WeiDU.log from before I started peeling back mod layers, for reference:



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The install order looks fairly sensible to me, and I can't see any obvious mod that should be causing trouble here. Since this doesn't seem to be a general problem, it could be something about your particular setup - try defragmenting your hard drive, unless you're using SSD.

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Install generalised biffing mod to biff your override folder. It is essential for any mega installations to avoid lags. After the biffing, the game runs so smooth and fast. You may need to restart a new game though, I am not sure. Try and see.


WARNING:Though generalised biffing is uninstallable, it is a risky venture at best. I was able to succesfully uninstall it before. Last time it went wrong and made my whole BGT game unplayable. Still, it is a very solid and needed mod for mega mod installations. Always install it last and do not uninstall and you'll be fine.

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I was experiencing very bad lag with Tutu and found a fix for my own game. It was very bad and I was getting frustrated; I mean, every time I clicked an item in inventory the game paused! I was almost ready to give up playing Tutu. But I did two things and it cleared my game right up:


1. I reran BGConfig.exe, found in my Tutu folder. Under "2D & 3D Options" I had "Use 3D Acceleration" checked; I unchecked the "32 bit Textures (off for 3dfx)" box. Under Miscellaneous, I reset my frame rate to 30; I had it at 32. I also reduced pathfinding to 50,000, and increased my Cache Size from 1,000 to 5,000

2. This one I think had the biggest impact: I simply turned off ambient area sounds.


Not sure which of these did the trick (I believe ambient sounds) but the problem went away.

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I had a similar (if not exactly the same) problem as the OP, so, obviously, before coming here and finding the workaround, I spent an entire day testing :)


Anyway, for reference, the framerate drop I expirienced was most noticable when more than two characters were issued moving orders. For some reason, just moving one or two worked fine for my machine (perhaps others would notice it sooner, or, on beefier HW, they might never encounter it).


I believe this is why it hasn't been noticed earlier: it easily passes the "load up Candlekeep" test, because at that point you only have the one character :)


Following is the list of SCS components each of which, when installed, would cause the lag:


2010 // Replace many magic weapons with fine ones -> Fine weapons are affected by the iron crisis: v21

2011 // Replace many magic weapons with fine ones -> Fine weapons are immune to the iron crisis: v21

3080 // Improved shapeshifting: v21

3110 // More realistic wolves and wild dogs: v21

4000 // Skip Candlekeep: v21

5000 // Smarter general AI: v21

5010 // Better calls for help: v21

5030 // Smarter mages -> Mages use BG1 spells only; mages do not "pre-buff" (i.e., cast some defensive spells quickly at the start of combat): v21

5031 // Smarter mages -> Mages use spells from BG1 and BG2; mages do not pre-buff: v21

5032 // Smarter mages -> Mages use BG1 spells only; mages pre-buff: v21

5033 // Smarter mages -> Mages use spells from BG1 and BG2; mages pre-buff: v21

5040 // Smarter priests -> Priests use BG1 spells only; priests do not "pre-buff" (i.e., cast some defensive spells quickly at the start of combat): v21

5041 // Smarter priests -> Priests use spells from BG1 and BG2; priests do not pre-buff: v21

5042 // Smarter priests -> Priests use BG1 spells only; priests pre-buff: v21

5043 // Smarter priests -> Priests use spells from BG1 and BG2; priests pre-buff: v21

5050 // Smarter deployment: v21

6005 // Harder giant and phase spiders: v21

6020 // Improved deployment for parties of assassins: v21

6030 // Dark Side-based kobold upgrade: v21

6050 // Improved Ulcaster: v21

6060 // Improved Balduran's Isle: v21

* 6070 // Improved Durlag's Tower: v21 [assumed, something went wrong by the time I got to this one, and it would no longer install properly]

6080 // Improved Demon Cultists: v21

** 6090 // Improved Cloakwood Druids: v21 [assumed, requires one of the problematic components]

** 6100 // Improved Bassilus: v21 [assumed, requires one of the problematic components]

** 6120 // Improved Red Wizards: v21 [assumed, requires one of the problematic components]

6140 // Improved minor encounters: v21

6150 // Tougher chapter-two end battle: v21

6160 // Tougher chapter-three end battle: v21

6170 // Tougher chapter-four end battle: v21

6180 // Tougher chapter-five end battle: v21

6190 // Tougher chapter-six end battle: v21

6200 // Improved final battle: v21




After installing a bunch of SCS stuff minus the aforementioned components*, the game would run fine. It would also run fine with widescreen installed afterwards.


However, it would now lag if I installed TutuGUI! (It would work fine without SCS)


As mentioned above, ALL of these problems go away if I turn off "all ambient sounds". However, I'm not sure what exactly this does: I still hear birds chirping in the woods, I still hear the background noise of towns... Really weird.


*This is what I'd use:


:EasyTutu Degreenifier

EasyTutuDegreenifier.exe < EasyTutuDegreenifier.in

:Unfinished Business, skipping the NPC Project stuff: Angelo Notices Shar-Teel, Kagain, Coran, Kivan, Branwen

setup-bg1ub.exe --language 0 --force-install-list 0 1 2 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

:The BG1 NPC Project, skipping most Portrait changes

setup-bg1npc.exe --language 0 --force-install-list 0 1 6 8 9 10 11 12 13 14 15 16 18 19 22 24 25 26 27 28 29 30 32 200 < bg1npc.in

:One Pixel Productions, RC4, answers: 1 2 1 2 1 1 1 1 1 2 1 1 1 2 2 1 1 2 2 1

Setup-1pp.exe --language 0 --force-install-list 101 103 104 105 106 111 113 114 200 201 202 203 204 205 206 207 208 210 300 301 400 401 < 1PP.in

:BG2 Tweaks

setup-bg2_tweaks --language 0 --force-install-list 50 60 90 100 110 120 130 1010 1060 1070 1080 1090 1100 1110 1120 1140 2020 2030 2040 2140 2150 2161 2200 2210 2220 2230 2231 2320 2330 3000 3010 3030 3040 3060 3070 3125 4000 4020 4031 4040 4050 4061 4071 4080

:Sword Coast Strategems

setup-scs --language 0 --skip-at-view --force-install-list 10 20 30 40 50 60 1000 1001 1010 1019 1030 1040 1055 1060 1070 2000 2020 3000 3010 3060 3070 3101 4010 4020 4030 4040 5015 5022 5060 5070 5080 5090 6010 6040 6080 6110 6130

:Tutu GUI

Setup-TutuGUI --language 0 --skip-at-view --force-install-list 0 1


setup-widescreen.exe --language 0 --skip-at-view --force-install-list 0 < widescreen.in



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