CPU Threading With two CUDA-capable graphics cards, object tracking can be made faster when each card is controlled by its own CPU thread. To assist with customer support, C-Motion staff might occasionally ask to disable CPU threading when debugging problems with graphics cards.

X-Ray Opacity The opacity of the X-ray images in the 2D and 3D windows. Their opacity should be less than 1.0 so that the DRRs can be seen superimposed on them. The default value is 0.5.

Simulated Annealing Temp The initial temperature for the ASA simulated annealing algorithm. The higher the initial temperature, the more slowly the search range will narrow during the optimization. The default value is 2000.

Color Theme You can choose between a light and dark color theme for the graphical interface.