[Tig] Why isn't HDR(-like) rendering more widespread?

glenn chan glennchan
Wed Mar 29 23:47:14 BST 2006

Thanks to oktobor for supporting the TIG
Even with 8-bit and 10-bit origination (and storage), you would see
differences in HDR versus not HDR as my Wiki page demonstrates.

i.e. The footage comes in as 8-bit with gamma
compression/companding/correction (i.e. DV/firewire, SDI, etc.).  Expand
that out by taking all the values to an exponent of ~2.2 (ignoring the whole
601/709 issue for now).  Do the saturation algorithm.  Put the gamma
correction back in.
A lot of programs are moving towards processing in 32-bit float anyways.
Removing and putting the gamma correction back in is just an additional

Glenn Chan
Tig list - http://tig.oktobor.com/mailman/listinfo/tig
TIG wiki: http://tig.colorist.org/wiki

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