[Nuke-users] LogC through ACES.......?

2016-10-31 Thread Lucien Fostier
Hey Neil, the result you get from this srgb -> arri wide gamut are not surprising but I dont think they are appropriate in your case. If you are converting this plate with negative values from srgb to arri wide, you are essentially saying that the code value of your image which are negative

Re: [Nuke-users] LogC through ACES.......?

2016-10-31 Thread Neil Scholes
Hi Kevin Thanks for help ok so random frame on one of the pics… looking through OCIO node converting ARRI V3 LogC(EI800): log values 74 61 87 across rgb in lowest value….. and weirdly in superb rights - 0 0 1023 in highest value ……! - changing primaries from sRGB to AlexaV3LogC

Re: [Nuke-users] LogC through ACES.......?

2016-10-31 Thread Kevin Wheatley
On 31 October 2016 at 09:10, Neil Scholes wrote: > 1/ changing primaries from sRGB to AlexaV3LogC - get rid of a ton of > negatives ( values lower than -1) > I’m taking a guess here ( shares the same primaries as rec709) > white point still D65 This certainly sounds

Re: [Nuke-users] LogC through ACES.......?

2016-10-31 Thread Neil Scholes
Hi Guys Thanks very much for the input - very interesting The plates are 10it DPX I’m clicking RAW on the read node - so not changing any color then : 1/ changing primaries from sRGB to AlexaV3LogC - get rid of a ton of negatives ( values lower than -1) I’m taking a guess here ( shares the