Derelict Corridor - Relighting

My Attempt to Relight Quixel Derelict Corridor [Hallway] in Unreal Engine 5.5 Using Physically Based Lighting Approach [PBL]. Max EV100 Values Were Set To 7.0 For The Min And Max With Exposure Compensation Value of 0

The Project Was Quite Challenging, I Didn't Use Directional Light Or Sky Light; It Was Completely Done With Local Lights And Exponential Height Fog Actor. The Main Challenge is to Keep The Lighting Very Optimized, So I used Some Tricks to Achieve This Optimized Lighting Version While Keeping The Same Quality, Even Better Quality..

1. Reduced The Attenuation Radius For All Lights, Ranged Between 300 - 500. That Reduced The Light Complexity
2. Created An Emissive Card / Bounce Card Material, Then Converted It To A Blueprint to Make It Easier To Control
3. While Using Lumen For Global Illumination, These Emissive Cards Did The Trick At No Cost
4. I Used Screen Space Reflections [SSR] Instead Of Lumen Reflections. It was Very Stable And Ended With Almost The Same Result
5. MegaLights Were Turned Off Completely
6. No RayTracing At All. Lumen GI Is Using Software Ray Tracing with Default Settings Set To Surface Cache To Save More FPS

And For The Fog, I Had Multiple Solutions For it:
1. Custom Local Fog Volumes, Which Are Animated And Done Entirely in UE
2. Custom God Rays [Light Shafts] Added Manually To Some Windows
3. Volumetric Scattering Intensities Were Increased For Some Lights

Everything Was Done Within The Engine, No External Post Production Tools Were Used. The Lighting is Inspired By The Last of Us [ TLOU ], The Main Theme is to Have Cold Lights Combined With Red To Make The Player Feels The Emergency And Danger, Not A Calm Place At All

I Hope You Liked The Project And Learnt Something From The Breakdown. Feel Free To Chat About Any Open Roles And Opportunities, I will Appreciate That :)

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before and After Lighting Optimization

Before And After Using Emissive Cards

Before And After Using Emissive Cards

Before And After Using Emissive Cards

Before And After Using Emissive Cards

Detailed Lighting View

Detailed Lighting View

Greyscale View to Calibrate Light Values in Black and White

Greyscale View to Calibrate Light Values in Black and White