I’ll quote the tweet by Adam Marrs (and please do RT):

Due to the unprecedented worldwide events since announcing Ray Tracing Gems 2, we have decided to adjust submission dates for the book.

Author deadlines have been pushed out by five months. RTG2 will now publish at SIGGRAPH in August 2021, in Los Angeles.

More info here.

To save you a click, here are the key dates:

• Monday February 1st, 2021: first draft articles due
• Monday March 22nd, 2021: notification of conditionally and fully accepted articles
• Monday April 5th, 2021: final revised articles due

And if you’re wondering, SIGGRAPH 2021 starts August 1st, 2021.

The key thing in the CFP: “Articles will be primarily judged on practical utility. Though longer articles with novel results are welcome, short practical articles with battle-tested techniques are preferred and highly encouraged.”

It’s nice to see this focus on making the book more about “gems,” concise “here’s how to do this” articles. There are lots of little topics out there covered in (sometimes quite) older books and blogs; it would be nice to not have to read five different ones to learn best practices. So, please do go propose an article. Me, I’m fine if you want to mine The Ray Tracing News, Steve’s Computer Graphics Index, etc.