[ Fallout 4 ] A huge FPS drops when looking at light sources

[quad98]

Hi there,

 

I ran into a problem with light sources in FOL4, as you can understand from the title. I have not a good PC, but the fact, that I'm only facing this now, is strange.

So, when I look at the lights (projectors, lamps, etc.), FPS starts to drop a lot: from 47-55 FPS to 25-35, and it's in a very small room with only one source of light, in the big locations, everything is mostly bad. I haven't seen this problem before (or it wasn't that bad). Outdoors, the situation is better, cause there are not so many sources of lights (except for the sun).

 

List of mods, that I have installed:

1. Unofficial Fallout 4 Patch
2. Insignificant Object Remover
3. FAR - Reduced Resolution
4. PRP - Previsibines Repair Pack (whole 2 parts)
5. FPLS - Lighting and Tweaks Performance:
6. FPLS - NSH
7. FPLS - Fog For Vanilla
8. FPLS - Dims
9. FPLS - Diamond City
10. Optimized Vanilla textures
11. Fog Of War (Misty)

That's all. Loadorder in statement that Vortex has set (if you need the SS, I'll send it to you).

I'm playing the official game version (in Steam).

 

PC Configuration, if you need:

• CPU: AMD Phenom 9750
• GPU: Nvidia GeForce GTX 750 Ti (2 GB)
• RAM: 6 GB of DDR2 (800 MHz, Dual Channel)

I know, it's bad, but it was enough for me to comfortably play with 35-50 FPS earlier.

 

All game settings are minimal. Also I slightly decreased the parameters of the texture upgrade & degreed distances and shadow DIR. Godrays & Volumetric Lightings are disabled. Well, I have set optimized settings for the game in the Nvidia Panel.

 

I thought that FPLS NSH, which disables almost all shadows from lights, would help me, but it's not so.

 

 

If you need more information, just write, I'll give you everything you need. Advance thanks <3

stay peace.

Edited March 9, 2022 by DesyncYaw

[quad98]

Oh, sorry, i posted this on the not correct forum)

Please, move this topic to https://forums.nexusmods.com/index.php?/forum/3495-fallout-4-technical-support/

 

Regards.

 

U.P.D. Moved. Thanks.

Edited March 6, 2022 by DesyncYaw

[quad98]

So, I've catch that in "Corvega assembly plant" everything getting bad, in other locations FPS is +- normal (outdoors, where there aren't many buildings, I get 55-60 FPS, when in Corvega it's 25-40, rarely 55-60, in small rooms or when looking at a wall).

Cursed location. CPU (+110 GHz) & GPU (+200 on core & memory) overclocking doesn't help.

 

Does anyone have an opinion on why everything is so bad in this particular location?

[HeyYou]

Any mods that affect lights?? Specifically lights that cast shadows.....

[quad98]

Any mods that affect lights?? Specifically lights that cast shadows.....

Yeah, FPLS is one: https://www.nexusmods.com/fallout4/mods/57497

I'm using the NSW (no shadows) version.

 

But I don't think that it can lower the FPS, he has exactly the opposite purpose.

[HeyYou]

 

Any mods that affect lights?? Specifically lights that cast shadows.....

Yeah, FPLS is one: https://www.nexusmods.com/fallout4/mods/57497

I'm using the NSW (no shadows) version.

 

But I don't think that it can lower the FPS, he has exactly the opposite purpose.

 

Some folks have reported problems with FPS with that mod..... Might try running without it, and see if things improve.

[quad98]

 

 

Any mods that affect lights?? Specifically lights that cast shadows.....

Yeah, FPLS is one: https://www.nexusmods.com/fallout4/mods/57497

I'm using the NSW (no shadows) version.

 

But I don't think that it can lower the FPS, he has exactly the opposite purpose.

 

Some folks have reported problems with FPS with that mod..... Might try running without it, and see if things improve.

 

I tried, but nothing has changed. Also, I noticed that FPS drops only when looking at some specific places. I'll show it on the video later.

Maybe it linked with some effects, that are starting to render, or with loading another part of the location...

[xrayy]

you can check your draw calls if you use enb or reshade. i wrote a tutorial for fo4 to avoid fps drops and how to check draw calls and other reasons for fps drops. due to the low single core ipc of your cpu your setup reacts very sensible to any draw call bottle neck - which means more or less fps drops under graphics specific load, also dependent on your light related ini settings, fov and applied resolution. the weakest part especially for fo4 seems to me the amd phenom cpu platform and the cpu itself

[quad98]

you can check your draw calls if you use enb or reshade. i wrote a tutorial for fo4 to avoid fps drops and how to check draw calls and other reasons for fps drops. due to the low single core ipc of your cpu your setup reacts very sensible to any draw call bottle neck - which means more or less fps drops under graphics specific load, also dependent on your light related ini settings, fov and applied resolution. the weakest part especially for fo4 seems to me the amd phenom cpu platform and the cpu itself

Huge thanks! I'll check your tutorial a bit later.

I know that my CPU doesn't have enough power for FO4, but I think 50-60 FPS outdoors with a 14 year old processor is not a bad result)

 

I do not notice such a problem anywhere except in the Corvega, so the problem is not so acute and I hurried to create a topic. Anyway, thanks for the help, guys, if I can be of any use to you, just tell me.

Edited March 13, 2022 by DesyncYaw