Here's a lens mapping thing...

[Dr_D]

It's more of a tutorial than anything. It was a little less detailed before, but I decided to add a couple more effects to it. The code is pretty well commented, so if anyone wants easy lens mapping, here it is.

[MrP]

Sweet. I was thinking of using something like this in my upcoming prod.... Now it looks like like I have the perfect learning material..... Nice One...

[Shockwave]

Really smart.
I like that. Have some Karma

[.:] Druid [:.]

Very nice!  Karmaaaaa!

[Clyde]

Cool Dr D.

[Dr_D]

Thanks guys.

By the way, what does the karma do? Can I buy stuff with it? 

[Jim]

http://dbfinteractive.com/index.php?topic=986.0

Thanks for posting the source code, karma  .  Had you thought about pre-computing the effect?  Basically for each pixel in the square containing the lens, you could store an x,y offset which tells you where to get the pixel from.

Jim

[Dr_D]

Yeah, it would surely be faster using an array to store pre-computed coords, but I was afraid it wouldn't be as easy to understand.

[Ghost^BHT]

By the way, what does the karma do? Can I buy stuff with it?

Only in the afterlife.

[DrewPee]

Nice piece of work!

Drew