I’m not sure if is related to the shadow mentioned by but I don’t seem to be getting any shadows using the 4.12 build.
Maybe I’m missing something obvious. I just have a simple scene with a spotlight, floor plane, a sphere and a cube. VXGI diffuse is enabled. All objects are set to movable. Also, I notice if I untick the “Enable Diffuse Tracing” box there is no noticeable change in the scene.
For the hell of it I built the lighting and get the error “Lighting build failed. Swarm failed to kick off.”.
Should I just go back to the previous build then? I followed the steps in “UE4_VXGI_Overview.pdf” as well and everything thing seems in order.