Orash Rahnema

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About Orash Rahnema

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  • Birthday 04/23/1980

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  1. Morning all, where i am currently working on a project I will have to deliver (and they only accept) prores 422HQ for an HDR10 delivery (rec2020 - P3D65 limited) I am working on a windows machine in resolve and I can't export prores as you know. I don't have access to transkoder or anything similiar and I have been proposed to export a dnxHR 444 and then transcode it to prores via adobe media encoder Since I have never done an hdr transcode in media encoder i have no idea if that could create a problem or not (clipping, colourspace shifts or anything) Anyone had to go
  2. group all the clips you want to be effected and leave that single clip out it it. Then paste your timline grade to the post group level
  3. Blanking only works on output in edit or input sizing you have to crop
  4. @Christian Berg-Nielsen ACEScc and cct are the same, where the only difference is that cct has a "toe", so the blacks are a little lifted with a very small "soft clip" this has been done because any other flavour of ACES otherwise tend to keep whatever is at 0 level untouched giving a sticky feeling in the blacks that most of the time are a pain to deal with So most of the user that don't have access different drt gravitates toward ACEScct but it's not mandatory, using ACEScc ensure you that whatever is at 0 stays at 0, so if ones grading stile has always pure blacks then this migh
  5. the movie was shot on negative film and scanned log. I guess she's talking about a print film lut that once was used to get back when film had to be printed for screening, nowdays it's used creatively, so instead of de-logging with a log to p3 curve, or with a custom curve she used a film print lut designed by her father specifically for the show
  6. Edit: hdr will look super constrasty but you can do a "contrast" node right befor the ofx nod and fix the curve to have a similar feel, gamma 2.4 it's a lot more steep compare to pq
  7. Hi Glen! I will assume you will have to grade hdr10 and not dolbyvision as would be a different Since your lut is placed at the end I will try by replacing the lut with the color space transform ofx setting the output to rec709 and gamma 2.4 For the SDR version i will then chose the tonemapping option in the node for both luminance and saturation, in that way you should have the same result of the lut. For the HDR version i will leave off the tonemapping option so the ofx will not softclip I would honestly not tring to convert the gamma to pq or have a bigger colourspa
  8. Hi Glen did you place your lut at the end of the pipe or somewhere in the middle or at the begging?
  9. I believe it means to do different grades to be comp later in online in that way you can "control" different areas doing sligltly different grades in terms of contrsasst, saturation, detail and stuff like that
  10. that is pretty cryptic I would say. anything that is possibile to know before the 10th?
  11. as per ruler you mena something that can draw a straight line horizontally and vertically and can be arbitrary moved or do you need also measurement in pixel or centimeters, like photoshop? for the first one with a bit of time I can try to write a dctl since I was kind of tackling something like this already to excercise, I don't know when will be ready tho if you need the second one, then no, i can't do it
  12. Can it be that hue vs Sat works on HSL or some different colour space rhater then the rgb colour space that Sat use. I belive Sat control works in RGB using 709 primaries, not sure about curves, the same nature of them makes me believe they are in hsl. But then again i might be wrong would be interesting to check
  13. Here there is a very interesting tweet about the apple xdr display from Juan Salvo
  14. Hi David there are few things that should be known before giving a proper answer. the only thing contaminated are the black bars or does the image looks more contrasty on your display? a quick things that come in mind is, when the image are desqueeze, the black bars you see are black to start with, but if you really push the level you see that behave like they are part of the image, so if you "pollute" the black with a color cast or the blacks are lifted also the bars will be The solution would be to blank the frame using output sizing or timeline blanking that if ther