Wikipedia:Reference desk/Archives/Computing/2020 April 28

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April 28

Microsoft Edge Chromium and S mode

Can Windows 10 S mode users install the Chromium version of Microsoft Edge, or must they switch out of S mode before doing so? I tried asking this question on April 26, but no one has answered it yet, so I moved it to April 28. GeoffreyT2000 (talk) 14:18, 28 April 2020 (UTC)

It sounds like you can already manually install it [1] and have been since it was in beta [2]. It seems likely that a system update will eventually replace Edge with Chromium Edge, but it doesn't sounds like Microsoft has announced when that will happen. Nil Einne (talk) 06:52, 2 May 2020 (UTC)

Windows 10 S mode is terrible Tsla1337 (talk) 11:46, 30 April 2020 (UTC)

graphics: camera beyond infinity

in computer graphics, it is possible to move the camera beyond infinity. during a Hitchcock shot. so that far objects are bigger than near objects. where can I see still or video output of this? thanks! --RM — Preceding unsigned comment added by 14.194.238.99 (talk) 14:20, 28 April 2020 (UTC)

What counts here are not absolute positions, but relative positions. Leaving some objects stationary and moving the camera should be equivalent to leaving the camera stationary and moving the objects by the same amount in the opposite direction. In 3D space, infinity does not exist. If you mean infinity in the sense of projective space, moving "through infinity" is the same as re-appearing, initially very distant, at the other side. With a real camera, the objects will then be behind the camera and thus outside the field of vision. With computer graphics and an imaginary pinhole camera, you can still trace a ray in a straight line from the object through the pinhole hitting the film (from behind) and contributing to the image. However, what was below the horizon will now be above it and vice versa. To get the idea, take the image of a railroad in the Projective space article, cut it along the horizon, and rotate a copy of the bottom part around the vanishing point of the rails by 180°. Far objects and nearby objects that keep their distance to each other will move "through infinity" together, but then their order of nearness to the camera is reversed. The formerly farther object will then get larger than the formerly nearer object, as well as appearing upside down.  --Lambiam 19:59, 28 April 2020 (UTC)

This video shows telecentric and hypercentric optics, which is a bit like what you're asking. -- Finlay McWalter··–·Talk 10:01, 29 April 2020 (UTC)

thanks! --RM — Preceding unsigned comment added by 14.194.225.153 (talk) 11:46, 29 April 2020 (UTC)