Log/lin settings in shake

[jimmytich]

Thought I'd share, although it might be obvious:

-- linearizing DPX from alert -- the log/lin setting that seems to work best is

rblack - 0
rWhite = 1023

rDGamma - 1

Everything else default. Looks almost identical to a Light Linear output from Alert, although the superwhites might be single digits darker.

Anyone see any issues with working with this kind of log/lin?

james tichenor
vfx supervisor

 

[Cail Young]

Well, having black and white at those points and a gamma of 1 pretty much defines a linear space, so yeah I'd say that's probably right!

 

[Rob Lohman]

If you want to go linear I would export 16-bit tiff from alert and then you need to set rblack = 0 and rwhite = 65535 (if that's possible). If you stay in 10-bit (what 0 - 1023 is), then you're probably better off in log instead of lin since the source data is 12-bit (red alert does processing in 16/32-bit though). If you save this 12-bit data as linear to a 10-bit dpx for example you will loose some information.