Holy Sh*t, Bill!
I was on your blog 10-20 minutes ago, before this was posted, when I refreshed the page, this was there. I thought it was a photo on your site, right up until now that I checked back in here! (It was smaller res' there displayed on your page, mind you.)
Top quality!
On the topic... I was searching my name 'dandelO' on Google(just out of curiosity, not
Narcissety 
) and I came upon a wonder of revelations! You rendered my poor demo-test image of the caustics on rocks(the .tgd that looks like Spiderman's had a wet dream all over it) at 1600px wide! Christ, it's a nasty looking thing, even small I thought, it was just to prove it worked. Lol! If you want to render something bigger, here, have a link to all my TGD's! :rofl: I'd be most grateful!

I also found ANOTHER 'Dandelo', who is a TG2 user, on Carl's site. I was reading Google's round-ups beneath the search results for
'dandelO Terragen' and, I'm thinking...
''Wait, I'm not a member at 'The Cafe', I didn't write these things'!', turns out the Dandelo writing the things isn't me! Phew! Thought I was insane for a minute!
Really, what're the chances of there being 2 me's? He is 'Dandelo' though, while I'm always 'dandelO'(in the Dark Tower books, where my nickname comes from, dandelo is an anagram of 'Odd Lane', a road-crossing on the Path Of The Beam, the character just uses that as his name, so I use the capital 'O' in mine, not that anyone cares, lol), but still...
DoppeldelOgangers? Mental!
Great image!