Testing some indoor shots using Octane Standalone V4.00 RC3.
Modeled with Blender
Rendered with PT Kernel using AI Light and denoiser of course.
As expected the render time for indoors is higher, about 40 min in 1600x1600
I also experimented Light IDs enable/disable in the kernel settings, very helpful !
I used mesh emitters on windows to help light entering the room.