Looks great! If you’re looking to expand your techniques as well as materials for lighting, definitely check out Light — Science and Magic . Great book that goes over how to light any material and different approaches based on your goals.
It’s geared towards photographers but you can apply its teachings to C4D as well.
You'll have to learn approaches to photographing reflective subjects—if you're wondering what you would be googling.
Of course the more thorough investigation is explored in Light Science & Magic.
> Is that a textbook available online ?
Not that I know of, but it's the best 30 bucks you (your company?) could spend, a little technique can save a lot of time.
https://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0240812255
sure. read this. https://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0240812255
​
it has a detailed scientific explanation of how polarization and cross polarization works, and when and how it can be a helpful tool in studio photography.
A whole bunch of juicy ideas in here: https://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0240812255
If you're serious about lighting, especially food and product lighting, then buy a copy of
https://www.amazon.co.uk/Light-Science-Magic-Introduction-Photographic/dp/0240812255
Get this book. It will teach you everything you need to know about the basics of doing this.
And then there's Light: Science and Magic
https://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0240812255
"Light Science and Magic" is a fantastic book about lighting.
Haha, wow, even B&H has that book! (Even cheaper than Amazon...)
It's a good primer on light indeed—highly recommended.
Get this book if you get the chance to: http://www.amazon.com/Light-Science-Magic-Introduction-Photographic/dp/0240812255
There's PDF's of it floating around the internet too. It'll be a really good tool.
Your camera should be enough to get started with and produce nice results. This video might be of help to get you started on shooting your glass items:
https://www.youtube.com/watch?v=BlQwt7_ZXKg
There are plenty more like it, just do a search for shooting glass.
You don't need to take classes with the internet around, just learn as you go.
Also, consider picking up this book: Link