Disclaimer: You must own the California City Pack to follow.
The California Demo City requires Unreal Engine 5.6 or up.
1- Create a project in Unreal Engine 5.6 or up.
2- Add the California City Pack to it via the Epic Game Launcher.
3- Download the Demo City Map zip file, extract it in the root of your project folder (where the content folder is).
4- It should ask you to replace some files, Accept and voilà.
5- Open the Project, go to “CaliforniaCity” Folder then “Maps” folder, double Click on the “California” Level to open it.
Note 1: If you don’t have iPCC installed in the project choose the “California_No_iPCC” Level
Note 2: Opening the level for the first time can lead to massive shaders compilations and assets getting ready.
Wait for it to finish to avoid crash or performance issue.
Note 3: Nanite, Virtual Shadows Map & Mega Lights should be enabled.
For Lumen, hardware enabled version is recommended. Use the provided config file to have everything set up correctly
- Min Recommended Settings (For High Settings):
24 Gb of Ram
RTX 2070 or Radeon RX 5700 XT with at least 8Gb of VRam
14 Gb of free SSD
6 Core Modern CPU at 2.1 Ghz
- Recommended Settings (For Epic Settings):
8 Core Modern CPU at 2.6 Ghz
RTX 3070
64 Gb of Ram
20 Gb of free SSD
- Optimization Settings/Performance Tricks:
Select and delete all Traffics Actors
Deactivate Fog (Save a lot of performance on mid end GPU)
Deactivate All Locals Lights (Select the PWL Lighting Manager & Click on Toggle All PCC Lights Actors)
Note:
For High End GPU such as RTX 4080 and up, you may found that the scene is CPU bounded.
For Reference (Epic Settings with some partial optimisation above partially applied):
- a solid constant 60fps on a Laptop with intel i7 12th 2.3GHz CPU, 32GB of ddr5 ram and a RTX 3070 GPU for 1080p resolution. At night time we have 50 ish fps because of the sheer amount of light actors rendered (16000+) at once.
- a desktop with a RTX 4090 combined with an intel i9 12th Gen CPU, where the GPU is rendering the frame at 170 fps but the CPU is at 123+ fps for a 1440p screen, so CPU bounded.
