[jitter] [Sharing is fun] - Levels shader a-la photoshop

Continuing the 2 for 1 tradition Wesley started (and, shit, we cant  
let him steal the limelight for too long :) ), here is a GPU  
accelerated Levels (basically, like jit.charmap) shader. Ive included  
some of the code posted from the "jitter needs a curve drawing tool"  
thread to implement a tool similar to photoshops interface, as well  
as the basic low, mids and highs luma and RGB controls that Levels  
has in Photoshop.

While a pretty basic shader, its very fast (uses a look up table),  
and since it does not have the input range and tolerance limitation  
that Adobe forces on you, some very cool looks can be made. Try it.  
Its kind of addicting to color correct things and make your footage  
looks nice. Great at the end of an effects chain.

Enjoy -

http://abstrakt.vade.info/ILOVETHEMAXLIST/v001.levels.zip

v a d e //

www.vade.info
abstrakt.vade.info



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