Settings

The settings are available via the main menu.

Simulation instants:

As explained earlier, the user can define the moments per day and per year, and whether to distribute these moments over 24 hours or over daylit hours. 

Interface settings:

The walking step sets the default "speed" you walk at. If you put a too big or too tiny ground under your model, there are chances that once in the building you'll be moving too fast or too slow. You can fix this here.
The light depth is the number of bounces the light makes before a ray contribution can be neglected.
The resolution factor is a ratio of the FullHD resolution that determines the resolution of the image being traced. It does not lock the size of the displayed image. 

Surface / POV sensors:

The default resolution and the engine used for simulations can be set here.

Radiance:

It is possible, in case of a call to the underlying Radiance system, to intercept the calls before they are sent and check/tune the parametes