Drawing transparent objects

This Sunday we're focusing on transparent materials! There will be some photos of glass objects, water and ice with slightly more time per picture.
If you feel like drawing a real-life object of your own, that is very exciting as well! As usual, we have a 10 min break and an optional show-and-tell moment at the end of the session. 🥃

I've struggled to find a summary online, but these are some links:
https://www.artstation.com/blogs/rocketbrush/QbMKb/mastering-textures-reflections-and-transparency-in-drawing - light on glossy surfaces & some notes on transparent objects
https://www.youtube.com/shorts/s0j3fUBfzP4 - short snippet
http://guidetodrawing.com/transparency/ - the sections in 'Transparency'
https://www.artistsandillustrators.co.uk/how-to/still-life/how-to-paint-light-and-reflections/ - a still life painting

See you, 🔍
Ugnė