fantastic tool! I need to find the way to keep this on top of another fullscreen borderless window...
Edit: found it! I swear, this is the BEST way ever to watch old DVDs on modern 4k screens. xD
Steps to recreate:
1. Open dvd media in VLC and put it in fullscreen
2. Open ShaderGlass and select VLC as input window
3. Select Output -> Fullscreen (or Ctrl+Shift+G)
4. Profit!
While at it, I found crt-pocket to give the best results for my setup.
Thank you again so much for this incredible tool!!!