VR HMD Rendered FoV

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	P
1		Left eye				Right eye				Display	Vertical	Horizontal	Total	Stereo
2		tan_left	tan_right	tan_bot	tan_top	tan_left	tan_right	tan_bot	tan_top	Angle	FoV	FoV	Hor. FoV	Overlap
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5	Pimax 8k Small	-1.198	1.346	-1.306	1.306	-1.346	1.198	-1.306	1.306	20.0°	105.1°	103.5°		86.8°
6	Pimax 8k Normal	-1.742	1.346	-1.306	1.306	-1.346	1.742	-1.306	1.306	20.0°	105.1°	113.5°	140.3°	86.8°
7	Pimax 8k Large	-2.769	1.346	-1.306	1.306	-1.346	2.769	-1.306	1.306	20.0°	105.1°	123.5°	160.3°	86.8°
8	Pimax 5k+ Small	-1.198	1.346	-1.270	1.270	-1.346	1.198	-1.270	1.270	20.0°	103.6°	103.5°	120.3°	86.8°
9	Pimax 5k+ Normal	-1.742	1.346	-1.270	1.270	-1.346	1.742	-1.270	1.270	20.0°	103.6°	113.5°	140.3°	86.8°
10	Pimax 5k+ Large	-2.769	1.346	-1.270	1.270	-1.346	2.769	-1.270	1.270	20.0°	103.6°	123.5°	160.3°	86.8°
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12	Valve Index	-1.543	1.054	-1.413	1.411	-1.056	1.544	-1.413	1.414	0.0°	109.4°	103.6°	114.1°	93.1°	Note: under the assumption that the Index requests parallel projection
13	Oculus Rift CV1	-0.965	0.715	-1.111	0.889	-0.715	0.965	-1.111	0.889	0.0°	89.7°	79.6°	88.0°	71.1°
14	Oculus Quest	-1.280	0.900	-1.327	1.072	-0.900	1.280	-1.327	1.072	0.0°	100.0°	94.0°	104.0°	84.0°
15	Oculus Rift S	-0.966	1.036	-1.150	1.000	-1.036	0.966	-1.150	1.000	0.0°	94.0°	90.0°	88.0°	88.0°	https://www.resetera.com/threads/pcvr-game-discussion-thread-a-new-era-of-gaming.529/page-163#post-21239337
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17	HTC Vive	-1.394	1.245	-1.466	1.468	-1.251	1.398	-1.466	1.468	0.0°	111.4°	105.6°	108.8°	102.6°	Note: visible FoV is ~10° lower with normal foam and standard face structure
18	HTC Vive Pro	-1.352	1.198	-1.416	1.422	-1.204	1.351	-1.419	1.420	0.0°	109.7°	103.7°	107.0°	100.4°	Note: visible FoV is ~10° lower with normal foam and standard face structure
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20	Lenovo WMR	-1.225	1.241	-1.240	1.226	-1.231	1.247	-1.240	1.226	0.0°	101.9°	101.9°	102.0°	101.9°
21	Samsung Odyssey+ WMR	-1.239	1.045	-1.437	1.427	-1.048	1.228	-1.437	1.427	0.0°	110.1°	97.4°	101.9°	92.6°
22	HP Reverb WMR	-1.112	0.942	-0.998	1.013	-0.943	1.115	-1.005	1.010	0.0°	90.3°	91.3°	96.2°	86.6°
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24	Pimax 8k Small ParP	-1.742	0.945	-1.636	1.636	-0.945	1.742	-1.636	1.636	0.0°	117.1°	103.5°	120.3°	86.8°	Note: visible vertical FoV is the same as without Parallel Projection
25	Pimax 8k Normal ParP	-2.769	0.945	-1.636	1.636	-0.945	2.769	-1.636	1.636	0.0°	117.1°	113.5°	140.3°	86.8°	Note: visible vertical FoV is the same as without Parallel Projection
26	Pimax 8k Large ParP	-5.756	0.945	-1.636	1.636	-0.945	5.756	-1.636	1.636	0.0°	117.1°	123.5°	120.3°	86.8°	Note: visible vertical FoV is the same as without Parallel Projection
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29	Notes:
30	This is based on the IVRSystem::GetProjectionRaw function.									Follows the approach outline here.
31	It represents what is being rendered, not necessarily what is visible (but it provides an upper limit on the FoV which is potentially visible).
32	In my experience, on Vive with the default padding, quite a bit of the rendered FoV is not optically visible. On the Pimax most of it is (at least at Small and Normal settings).
33	For Pimax, "ParP" is with parallel projection compatibility enabled. Note that the additional vertical FoV in that mode is not, in fact, visible.
34	If you have a HMD not listed and are willing to run a small program to add it, look here: https://github.com/PeterTh/ovr_rawprojection
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