![]() For now it's a matter of 'suck it and see' between those two for other bits of software (Color Finale takes the Lumetri approach in it's preset). If you choose 'DaVinci Resolve (.cube)' or 'Lumetri/Speedgrade (.cube)', you should have an 'input scaling' box come up. As each bit of software has a hissy fit if you use the wrong approach, I have set the default 'General Cube LUT' to not include input scaling. cube files, one used by Adobe/Lumetri, the other by Resolve. There are at least two different and incompatible ways to express input values in. cube is the most mature format in there, so the one I'm going to use as an example. ![]() As I have learned about and written parsers for other formats, I have also added builders, which I then test out (although as you found with spi3d, I have been known to change things which cause breakages -) ), but. It continues to develop as new shoots reveal new needs.First off, I have to say that the cube format is the one I work with most, and which LUTCalc was initially designed around. LUTCalc has been developed by a cameraman with over 25 year experience for his own work and LUTs produced have been used extensively on commercial projects. * Provides 10-bit RGB readings from the Preview image. * Tone curve charts as stop in / recorded level out, linear in / linear out and LUT in / LUT out. * xy / uv Chromacity preview image displays the recorded and output gamut triangles and white points, incorporating adjustments. * Waveform, vectorscope and RGB parade scopes. * LUTCalc includes a number of built-in test images with charts such as high contrast and low contrast, greyscale and full colour gamut along with the option to load a. * Full instructions and details of all options are provided. ![]() * A 'False Colour' option can be used to generate accurate, log-curve specific exposure assistance MLUTs where it is not available in camera. Where the recorded log and colourspace flavours it is designed for are known it will attempt to convert it for use as with any of the built-in options, and provide the same exposure and tone curve information. * The 'LUTAnalyst' tool can read LUTs in a number of formats. * Charts show the tone curves for the recording and the output, plus indicate the absolute dynamic range of the camera - black clip and white clip - where it is known. The levels would ensure that when working to a monitor LUT the log recording would be correctly exposed as designed. It takes into account any adjustments and tweaks that have been made. * LUTCalc provides detailed exposure information about any look it generates, such as the recorded levels for absolute black, a correctly exposed 18% grey card or 90% white card and others. * Produces MLUTs suitable for loading directly into Sony's cameras (as User 3D MLUTs), with other in-camera options in development. * Output to any of a number of common LUT formats, automatically adjusted for the intended use (MLUT or specific post software). * Plus Green / Minus Green slider to correct for fluorescent lighting. * Adjust colour temperature either by CTO / CTB as with gels or by source and desired colour temperature. * Customise looks to taste, from simple black level and saturation adjustments to more complex effects such as desaturating specific colour ranges. * Change the input settings but not the output settings as a base when working with different camera models on a multi camera shoot. * Convert between any of the included log and conventional gammas or to one of a number of creative looks modelled after those available in camera, either as a 1D tone curve only conversion, or as a full 3D colourspace conversion (such as S-Log3/S-Gamut3.cine to Rec709(800%). * LUTCalc can produce accurate exposure adjustment LUTs for use in post where a simple tool is often not currently available, such as with Sony's CineEI. Log and conventional gamma data has been taken from manufacturer-published documentation or standards papers. * LUTCalc understands almost all log flavours in use today, plus standard gammas such as Rec709 and manufacturer-tuned versions. An App for generating, analysing and previewing 1D and 3D Lookup Tables (LUTs) for video cameras that shoot log gammas. ![]()
0 Comments
Leave a Reply. |