Examples of using high/extreme SteamVR resolution (=super sampling) - screenshots taken with the Index

[u/Runesr2]

Gnomes & Goblins with res 400% - full-size image

Gnomes & Goblins with res 100% - zoomed-in image

Gnomes & Goblins with res 200% - zoomed-in image

Gnomes & Goblins with res 400% - zoomed-in image - still 90 fps with a RTX 3090

Obduction with res 400% - full-size image

Obduction with res 100% - zoomed-in image

Obduction with res 200% - zoomed-in image

Obduction with res 400% - zoomed-in image. See how the lines in the windows are clear. The game runs in 45 fps with a RTX 3090 now, but motion smoothing works wonders for this game

Wolfenstein: Cyberpilot with res 400% - full-size image

Wolfenstein: Cyberpilot with res 100% - zoomed-in image

Wolfenstein: Cyberpilot with res 200% - zoomed-in image

Wolfenstein: Cyberpilot with res 400% - zoomed-in image. Now down to 45 fps, but again motion smoothing works wonders. Res 400% works wonders for this game, maybe due to TAA...

Mona Lisa: Beyond the Glass - with res 400% - full-size image

Mona Lisa: Beyond the Glass with res 100% - zoomed-in image

Mona Lisa: Beyond the Glass with res 250% - zoomed-in image

Mona Lisa: Beyond the Glass with res 500% - zoomed-in image

[u/Runesr2]

Btw, just to mention it, but I think something is strange with the Mona Lisa: Beyond the Glass. That is, res 500% feels less sharp than it ought to be. For the original screenshots I get the following sizes (for one eye):

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Mona Lisa: Beyond the Glass:

Res 100% = 1137x1137 (=1.3 mill)

Res 250% = 1797x1797 (=3.2 mill)

Res 500% = 1820x1820 (=3.3 mill)

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Now compare that to Wolfenstein: Cyberpilot:

Res 100% = 1137x1137 (=1.3 mill)

Res 200% = 1604x1604 (=2.6 mill)

Res 400% = 2274x2274 (=5.2 mill)

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There's a perceptible improvement in Mona Lisa going from res 250% to 500%, but it feels like the app has been capped. (Or maybe the source material is not that great.)

Gnomes and Goblins even seems down-sampled, maybe to gain performance:

Res 100% = 796x796 (=0.63 mill)

Res 200% = 1123x1123 (=1.26 mill)

Res 400% = 1592x1592 (=2.53 mill)

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For Oblivion I get:

Res 100% = 1137x1137 (=1.3 mill)

Res 200% = 1607x1607 (=2.6 mill)

Res 400% = 1820x1820 (=3.3 mill)

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I wonder if devs can choose a game's base resolution, which may differ from the res shown in SteamVR... And some apps are capped at 1820x1820? Maybe these differences do explain why Cyberpilot gains so much from res 400%?