![]() Issue is when these movies have to be remastered for new supports, the DSMs are not relevant anymore and the original creative intent is lost. These proprietary systems, used for Digital Source Master ( DSM), can be outdated quite quickly or even worse, not sufficiently documented. The Original Print, shot on film, was available for eternity.īut with the digital revolution, multiple cameras and formats have emerged. There were only a couple of formats : 35mm and 70mm. When cameras were analog, things were simple. ![]() You can check the contributors and the TAC members here (in the CONTRIBUTORS tab). The amazing art direction by Grant Freckelton also helped to achieve this amazing result.ĪCES has been developed by the Academy of Motion Picture Arts and Sciences with the help of camera manufacturers (Arri, Red, Sony…) and some VFX studios (ILM, Animal Logic…). As we have seen in the previous chapter, it gives a wider range of colours to display. Animal Logic uses P3 monitors which is the industry standard for cinema theaters.We have seen in the previous chapter that many studios and schools render within the sRGB gamut with a linear transfer function and display in sRGB through a 1D LUT (or a simple sRGB OETF).I really thought to myself : “Wow ! This looks good ! How did they get these crazy colors ?” The range of colors really seemed wider than in my previous studio : It was my first day and I saw this shot on a monitor (I think Nick Cross lit this shot). The artists were working on a beautiful and very saturated movie called Lego Batman. Something that really hit me when I arrived at Animal Logic in 2016 was their range of colors. If you don’t feel like following by another technical chapter, I don’t blame you. ACES has also been implemented in CTL in Resolve and GLSL / HLSL in Unreal and Unity. ![]() It all comes down to the question : which requirements make a project ACES compliant ?ĪCES is available for free through OCIO (here is the link to the ACES 1.2 config), just like the spi-anim config. It has been confirmed during one of the TAC meetings (at 1:02:28) that some of the movies listed were not using the ACES Output Transform. Many VFX studios such as ILM, Framestore, Double Negative and Animal Logic use it to exchange files and officially more than 300 movies have been done using ACES.Īfter some investigation, I try to be careful about the previous statement. The whole idea behind ACES is to set a standard to help professionals in their color management. If you want to check the difference between a Color Managemement System (CMS) and a Color Management Workflow (CMW), please check the explanation and proposal by Daniele Siragusano. I am now going to describe ACES, a Color Management Workflow (CMW) developed by dozens of professionals under the auspices of the Academy of Motion Picture Arts and Sciences (AMPAS). The previous chapter was mainly about Color Management prior to 2014. It HAS TO.” So let’s see what is going on here… Introduction And this adds again to this fashion trend (in which my website participated) : “if ACES is implemented everywhere, it HAS TO be be perfect. Why on earth would a blue rabbit turn magenta ? Is there something weird going on here ? Can we do better than this ? These two images come from the Redshift and Unreal documentations, two respectable render engines. It MUST be.” You don’t believe me ? Check this out : There is like a psychological effect : “ if it has been done by the Academy and used on the Lego movies, then it MUST be good. The biggest point overall is that many image makers who are uncomfortable with Color Management (because let’s face it, it is a scary and complex topic) have completely given up on learning and actually trusting their skills or eyes. Over the past two years (since September 2018, my first post), I have learned so much and met amazing color-obsessed people partly thanks to ACES.īut in reality, and this has been stated at meeting#5 (of the Output Transforms VWG) : “ The two big successes of ACES are the IDT concept, and the understanding that color management is needed.” The Output Transforms (the module we use to display our renders) are ACES’ weakness, which is an issue since they are probably the most critical part of the “ Image Formation Chain“. Don’t get me wrong : the idea of ACES (an actual framework to help professionals in color management) is great and ACES has been my entry point to color management. The careful reader will have noticed that over the two years of existence of my website, my analysis on ACES has changed quite a bit and went from “ ACES is awesome” to “ ACES has issues and limitations“. Examples and comparison of Output Transforms.Why do we get a different global illumination ?.Comparison between Spectral, Rec.709 and Rec.
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