Re: [Openexr-devel] Cineon -> half conversion?

[Paul Miller]

Ken McGaugh wrote:
> Paul Miller wrote:
> > Does anyone have a good reference for Cineon log -> linear half 
> > conversion?
>
> The method I recommend comes from Josh Pines (who monitors this list).  
> I'll
> summarize it by showing how we do it here, including the header 
> attributes we
> use to store the parameters controlling the conversion.

Thanks Ken - thats look similar to what I had found, but the contrast 
looks better.

> Note that nowhere is there any reference to "black" or "white".  They 
> are video
> concepts and should only be used when preparing pixel values for display.

I like this a lot. I don't suppose adding display controls for black and 
white would essentially just drive a scale/bias in the HDR shader?



--
Paul Miller | address@hidden | www.fxtech.com | Got Tivo?