Table I.

VMD remote OSP RT performance for a VCA GPU cluster located 2,100 miles from the VMD workstation and HMD. Oculus Rift DK2 HMD head pose and display updates were maintained at a constant 75 Hz, matching its display refresh rate. All tests computed two subframes in parallel per update, thus accumulating two times the sample counts shown in the subframe samples column for each display update. Ray tracing workload increases as (pixel count × light count × sample count × subframe count).

Scene and Rendering Features	Ray Traced Omnistereo Image Size	Per-subframe Samples AA: AO (AO Per Hit)	RT Update Rate (FPS)
STMV Shadows	3072×1536	1:0	22.2
		2:0	18.1
		4:0	10.3
STMV Shadows, AO	3072×1536	1:1	18.2
		1:2	16.1
		1:4	12.4
STMV Shadows, AO, DoF	3072×1536	1:1	16.1
		2:1	11.1
		2:2	8.5
HIV-1 Shadows	3072×1536	1:0	20.1
		2:0	18.1
		4:0	10.2
HIV-1 Shadows, AO	3072×1536	1:1	17.4
		1:2	12.2
		1:4	8.1