Blade vs UDK

I was looking on Eat3D a few months back, and I was blown away some of the videos they had on there. They were £60 to buy so I thought with my next loan I'll buy them, but everytime I got some money in I always had some other crap to buy. So I never go round to buying the discs, although I would still like to in the future.

So for the past few months I've been trying to work out how they got their dissolve effect, I just couldn't work it out. But last night, or this morning, it was early anyway, I had a Eureka moment as I was just getting to sleep. I whacked open my laptop and had a fiddle about, it kind of worked, but it wasn't brilliant. So this morning I had another go and BAM, I got the effect I wanted so long ago. As far as I'm concerned it's just as good as the Eat3D's one, and I have potentially saved myself £60 while also having an ego boost.