Andy Minuth

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  1. Andy Minuth

    Render Colour tagging and render color space

    Hi Jean, Do you mean that the render looks wrong or that the rendered files are tagged with the wrong colour metadata?
  2. Andy Minuth

    HSL Curve getting confused

    A small comment: To desaturate the highlights you would use a Saturation (Scale) vs. Lightness curve. The logic is: 1st parameter: what do I want to change / 2nd parameter: based on what
  3. Andy Minuth

    8k render on BL One possible?

    I just tried: It is slow, but it works. On a BLone Gen 6 I got around 1fps from 8K Monstro R3D to 8K EXR with a typical grade (including spatial stuff) and Denoise (3 frame window).
  4. Andy Minuth

    adding grain matte

    BTW: For overlay blend mode it usually works best to tag the inputCS of the grain plate with the "log" working colour space. (If the grain plate is grey). Then the brightness of the shot will be less affected. Alternatively one can also grade the exposure of the grain to avoid density shifts.
  5. Andy Minuth

    Real contrast of your monitor

    I see. I think the contrast depends on the conditions people will watch it in. Sequential contrast (without auto-dimming) in a real cinema is usually between 1000-2000:1. Having 2000:1 during mastering sounds reasonable. Some people at home have around 4000:1 on their TVs (OLED for SDR). During mastering one should try to at least match that. Having more is better in both cases.
  6. Andy Minuth

    Real contrast of your monitor

    Ansi contrast of a typical DCI projection is around 100:1 (that is the minimum tolerance). A lot of big projects have their main grade done in such an environment. But you can argue that an average picture level of 50% (ANSI checkerboard) is not that common. Typical images are darker, which increases the intra-frame contrast of a projection.
  7. Andy Minuth

    In Baselight Sony F55 Importing clips are not showing Poper S-Log

    Hi Soumitra, as Nikola pointed out a scene-referred working colour space is recommended to maintain the full dynamic range of the image. Baselight is always decoding Sony RAW directly to floating-point linear. A state of the art colour managed setup would look like this: InputCS: Automatic / From Metadata (Sony: Linear / S-Gamut3) WorkingCS: Filmlight: T-Log / E-Gamut GradeResultCS: From Stack DisplayRenderingTransform: TruelightCAM / Automatic ViewingCS: According to your display (P3, etc.) Insert a Look operator (Scene-Looks) at the bottom of the stack according to the desired colour rendering of the project. Why does the DP want to grade from a wrong looking starting point (log)? A telecine style setup has some disadvantages and would look like this: InputCS: Automatic / From Metadata (Sony: Linear / S-Gamut3) WorkingCS: Your desired "log" format, e.g. S-Log 3, etc. GradeResultCS: DCI: 2.6 Gamma / P3 D60 *1 DisplayRenderingTransform: None ViewingCS: According to your display (P3, etc.) *1: I recommend using P3 D60 here for several reasons: The images do not have the ugly greenish white point of P3 DCI Inserted titles look neutral (use sRGB for input and P3 D60 as StackCS for titles) The grade will match better to video deliveries in Rec.1886: 2.Gamma / Rec.709
  8. Andy Minuth

    Tutorial video: Managing white points

    In this video, we take a closer look at the neutral axis, or white points, and their handling with the Truelight Colour Spaces framework. The video explains how to manage creative white points for different viewing conditions, and how to correctly import display-referred material into a grading scene, for example, to verify a render.
  9. Andy Minuth

    In Baselight 5.1 cut view clip looking cliping

    Did you check 'right click on Cuts view' - 'Use sRGB for Thumbnails' ?
  10. Andy Minuth

    Film Emulation LUTS in Baselight

    No the look operator replaces the whole layer. Just insert it somewhere in your stack and play with the scene-looks. When you put a Look operator into a layer you can key it in.
  11. Andy Minuth

    Film Emulation LUTS in Baselight

    Hi Matt, a typical print film emulation LUT will replace the DRT in Baselight. To apply it in a colour managed workflow do the following: Create a new layer Replace the first operator in the layer with: ColourSpace - Convert to 'Input Colour Space of the LUT' e.g. LogC Replace the second operator in the layer with: Truelight (Apply the LUT) Replace the third operator in the layer with: ColourSpace - Identify ColourSpace 'Output Colour Space of the LUT' e.g. Rec.1886 Please be aware that you might limit your possible deliveries doing that. A more flexible and future-proof approach is to use the new scene-looks in the 'Look' operator. They can be keyed in and used for all kind of deliveries (including HDR). The 'internal-Fuji_Film' profile in Truelight is a generic Fuji print emulation from Printing Density to Rec.1886.
  12. Andy Minuth

    Baselight, ACES, BLG and Nuke/Flame

    Hi Nikola, I recommend to use the ACES or Filmlight template. For ACES use ACEScct/AP1 as working colour space and RRT 1.0.1 as DRT. For Filmlight use T-Log/E-Gamut as working colour space and TruelightCAM as DRT. TCAM is a very flexible solution and does not restrict you to a certain look. If you are not happy with the look of the TruelightCAM DRT, you can adjust it with the scene-looks in the Look tool. Add it as a bottom layer for example. If the blacks are too strong, raise the Flare parameter in a BaseGrade. - always set the correct (or use automatic) interpretation of the footage - optional: add a slight compress gamut in the grade to avoid negative values. This depends on the footage, and if the vfx department has trouble dealing with them. If you use it, I recommend to render it in the EXRs and bypass it for the BLGs. The idea is to fix problems with the footage that might occur while comping. - optional: do a tech grade of the shots, adjusting only the Balance ring (Exposure), trackball (Whitebalance) and Flare (black point). These operations maintain the scene-linearity and will not harm the image. If CGI elements need to be inserted and the plates are not matching, it might be difficult to match it later. Usually it is easier, when the shots in a vfx sequence are technically balanced. - render OpenEXR without grading (but maybe with CompressGamut and tech grade). For ACES the official recommendation is to use Linear / AP0. Some people use Linear / AP1, because certain VFX people prefer that. For the Filmlight worflow the recommendation is Linear / E-Gamut. - export grades as BLGs - On the VFX side, the people can choose the input colour space for the BLGs. They need to set this to the colour space that you rendered the shots to. Linear / AP0, Linear / E-Gamut, etc. - VFX can use the BLGs to preview the look, and if the material is not coming back to the Baselight, they can even render the grades for the final output. But this must be tested and verified with Rec.1886 dpx files out of Baselight as a reference. - If the material is coming back to the Baselight, they should not render the BLGs into the files. They will just render to the same Linear colour space as they got. - In BL import the finished VFX shots and verify/set the input colour space correct. The shots should match in colour. Does that make sense?
  13. Andy Minuth

    HDR Grading - Colour Reproduction on monitors

    The Mastering Colour Space in BL is taking care of that. It clips all values outside of it and ensures that you don't render anythink into your master that you haven't seen while grading. The matrix takes care of the conversion from Y'CbCr to RGB and back. When you are driving the display in 4:2:2 this becomes relevant. The differences between the 709 and 2020 matrix are not that big, but saturated colours might shift slightly in hue. Cheers, Andy
  14. Andy Minuth

    Baselight, ACES, BLG and Nuke/Flame

    Hi Nikola, you would definitely render everything into an OpenEXR with a Linear colour space. The colour primaries of this space depend on your workflow (709, AP0, AP1, E-Gamut, etc.). During this render In BL you have the option to smoothly bend in out of gamut colours, which might cause problems while comping or grading down the line because of negative code values. Use a slight CompressGamut for that. Then you need BLGs for the full look or at least the correct viewing transform for the content to look right. You can export the viewing transforms as LUTs out of Baselight. Let me know if you need help with that. Cheers, Andy
  15. Andy Minuth

    HDR Grading - Colour Reproduction on monitors

    Hi Mark, You should avoid a mismatch of Viewing Colour Space in BL and the settings of your display. Otherwise your renders will look wrong. Actually there is no need in BL to set your viewing colour space to P3 gamut while grading in your case, but if you want to do it, then please use the 'Dolby: ST 2084 PQ / P3 D65 / 1000 nits' colour space for viewing. Alternatively set your viewing colour space to 'Rec.2020: ST 2084 PQ / Rec.2020 / 1000 nits' and the X300 accordingly. Please verify then in the Colour Space Journey that your Mastering Colour Space is 'Dolby: ST 2084 PQ / P3 D65 / 1000 nits'. It will limit your output to P3 gamut. Just try to see Rec.2020 as a container gamut, compareable to X'Y'Z'. And as a sidenote: Please use the 709 colour matrix in the X300 in both cases. In BL 5.2 there will be an option to change the colour matrix for the RGB -> Y'CbCr conversion, but until 5.1 the 709 matrix is used. Cheers, Andy