Hi all,
I created a new project in 4.22.2 for Ray Tracing. I enabled the DirectX 12 as the default RHI, turned on RayTracing and SkinCache.
After creating a test box scene the reflections are working with RayTracing but the global illumination and ambient occlusion are not.
This pic shows my scene but the shadows are completely black.
The scene:
- Allow static lighting is disabled in the project (it didn't have any RTGI before I disabled this either)
- There is one Rectangle Light at the top with Cast RayTraced shadows enabled
- A PostProcessVolume has been added and the RTGI Enabled setting is ON.
- I have enabled the r.raytracing.globalillumination and r.raytracing.ambientocclusion
I've checked that Windows 10 is version 1809
The Geforce NVidia driver is version 430.86
My Graphics card is a 1080ti so not full RTX
but using the nvidia driver upgrade feature 
I've tried searching for a solution and tried a few within the project but I cannot get it to work.
Any ideas would be appreciated.
Thank you.
I created a new project in 4.22.2 for Ray Tracing. I enabled the DirectX 12 as the default RHI, turned on RayTracing and SkinCache.
After creating a test box scene the reflections are working with RayTracing but the global illumination and ambient occlusion are not.
The scene:
- Allow static lighting is disabled in the project (it didn't have any RTGI before I disabled this either)
- There is one Rectangle Light at the top with Cast RayTraced shadows enabled
- A PostProcessVolume has been added and the RTGI Enabled setting is ON.
- I have enabled the r.raytracing.globalillumination and r.raytracing.ambientocclusion
I've checked that Windows 10 is version 1809
The Geforce NVidia driver is version 430.86
My Graphics card is a 1080ti so not full RTX


I've tried searching for a solution and tried a few within the project but I cannot get it to work.
Any ideas would be appreciated.
Thank you.
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