Gradient Map Filter - Pixel Bender for AS3

Question

Hi, i need some help to create a filter in Pixel Bender for AS3 to make this effect in the right side in this image:

http://a.imageshack.us/img829/1488/gradientmap.jpg

Can you help me?

Thank you.

Answer 1

Is there any reason it needs to be done in Pixel Bender? You could probably get the same effect by covering half of the image with a black rectangle set to about 80% opacity. If you need any additional tweaking of the effect, applying a blend mode to the fill would probably work.