4 ms·

Online glassboard (like Lightboard) but using just free software

76 points by theBashShell 6y ago

vanderZwan 6y ago
> And considering this seems to have only appeared around 2015 (a good five years after I was musing about the concept), I really should've explored things further. If the author had, they would have discovered Hiroshi Ishi's ClearBoard research from the early 90s[0][1]. Having said that, I love the solutions he came up with. Very clever and making good use of tech available to everyone. [0] http://tangible.media.mit.edu/project/clearboard http://tangible.media.mit.edu/project/clearboard [1] https://web.media.mit.edu/~ishii/CB.html https://web.media.mit.edu/~ishii/CB.html
meibo 6y ago
With this, you really have to mind that camera quality on Zoom and WebEx is usually so terrible that you can't read anything smaller than what he put on his slide and in an illegible color(like red on brown), since the camera is the first thing those services degrade on bad connections/devices. I would recommend creating a projector window in OBS, then sharing that via screen share, as that will force (slightly) better quality.
- jcelerier 6y ago
  > With this, you really have to mind that camera quality on Zoom and WebEx is usually so terrible that you can't read anything smaller than what he put on his slide and in an illegible huh, I routinely people see sharing their screen in 1080p on zoom and even 9-10pt fonts are pretty legible
  - leoedin 6y ago
    Those people are sharing their screen using the features provided by Zoom etc, rather than sending screen data through a virtual webcam. The data is likely being treated differently by the videoconferencing system.
  - calciphus 6y ago
    That's the point - zoom prioritizes shared screen content over video (rightly so). Since this uses a camera for capture, it'd be best to trick zoom into thinking it is a screen.
- kcarnold 6y ago
  Agreed... but one problem with that is that you get the title bar on the OBS window. If you have a spare external display, you can use a fullscreen projector, but I often don't have one. Anyone know a workaround?
  - calciphus 6y ago
    Just slightly scale up the window you're capturing in OBS and move the top menu out of frame.
  - millzlane 6y ago
    https://obsproject.com/forum/threads/is-it-possible-to-hide-the-title-bar-on-projector-when-on-windowed-mode.117065/post-507732 https://obsproject.com/forum/threads/is-it-possible-to-hide-...
- vanderZwan 6y ago
  Wouldn't that improve after a few keyframes? Objects that don't move tend to compress better

76 points by theBashShell 6y ago

> And considering this seems to have only appeared around 2015 (a good five years after I was musing about the concept), I really should've explored things further. If the author had, they would have discovered Hiroshi Ishi's ClearBoard research from the early 90s[0][1]. Having said that, I love the solutions he came up with. Very clever and making good use of tech available to everyone. [0] http://tangible.media.mit.edu/project/clearboard http://tangible.media.mit.edu/project/clearboard [1] https://web.media.mit.edu/~ishii/CB.html https://web.media.mit.edu/~ishii/CB.html

meibo 6y ago

With this, you really have to mind that camera quality on Zoom and WebEx is usually so terrible that you can't read anything smaller than what he put on his slide and in an illegible color(like red on brown), since the camera is the first thing those services degrade on bad connections/devices. I would recommend creating a projector window in OBS, then sharing that via screen share, as that will force (slightly) better quality.

jcelerier 6y ago
> With this, you really have to mind that camera quality on Zoom and WebEx is usually so terrible that you can't read anything smaller than what he put on his slide and in an illegible huh, I routinely people see sharing their screen in 1080p on zoom and even 9-10pt fonts are pretty legible
- leoedin 6y ago
  Those people are sharing their screen using the features provided by Zoom etc, rather than sending screen data through a virtual webcam. The data is likely being treated differently by the videoconferencing system.
- calciphus 6y ago
  That's the point - zoom prioritizes shared screen content over video (rightly so). Since this uses a camera for capture, it'd be best to trick zoom into thinking it is a screen.
kcarnold 6y ago
Agreed... but one problem with that is that you get the title bar on the OBS window. If you have a spare external display, you can use a fullscreen projector, but I often don't have one. Anyone know a workaround?
- calciphus 6y ago
  Just slightly scale up the window you're capturing in OBS and move the top menu out of frame.
- millzlane 6y ago
  https://obsproject.com/forum/threads/is-it-possible-to-hide-the-title-bar-on-projector-when-on-windowed-mode.117065/post-507732 https://obsproject.com/forum/threads/is-it-possible-to-hide-...
vanderZwan 6y ago
Wouldn't that improve after a few keyframes? Objects that don't move tend to compress better