Painting with light?!?!

[starky987]

I found a tutorial on here about creating a photo that appears to be "paint with light" It was of a paintbrush that tailed off a trail of light. I can't find it again and was wondering if anyone had the link. Thanks

[SloYerRoll]

I found a tutorial on here about creating a photo that appears to be "paint with light" It was of a paintbrush that tailed off a trail of light. I can't find it again and was wondering if anyone had the link. Thanks
Here's where all the tuts live:
http://dgrin.smugmug.com/gallery/1100284

Here's painting w/ light:
http://dgrin.smugmug.com/gallery/1076987

Cheers,
-Jon