Pixel Bender Chroma Keying code for flex3 / as3

Question

Does anybody know where i can find a good chroma keying pixel bender code example. Or does anybody know how to write such a code in pixel bender. Or a create pixel bender tutorial to create a chroma keying filter. Does anybody know how to get it in flex 3.

every help is welcome.

Answer 1

Here is a simple Difference Key pixel bender kernel: http://code.google.com/p/quasimondolibs/source/browse/trunk/quasimondolibs/com/quasimondo/shaders/DifferenceKey.pbk