Table 1.

VTK volume rendering performance of a CT and MR volume on the HTC Vive using the Unity editor, with and without a VTK fps target. At the closest distance the volume fills the height of the view, it is then moved away to fill half, and quarter (1/4) of the height

Modality	Vol. Dist.	No fps target	fps target
CT	0.5 m (full)	40–50	70 to >100
MR	0.4 m (full)	55–60	>100
CT	1.0 m (half)	70–80	85 to >100
MR	0.8 m (half)	60–70	>100
CT	2.0 m (1/4)	80–90	90 to >100
MR	1.6 m (1/4)	80–90	>100