As always Stefan: great job and very well done!!! I really appreciate your work! But you go way too far with the Hue Vs Lum Curve, this always introduces artefacts und it always will look way very unnatural. This tool works not very well in Hue vs Luma, as a rule of thumb don't go over -10 which means one box. In addition keep in mind that this tool is designed for Rec709.G24 and will not work mathematically correct in scene referrred spaces. In my opinion it depends on the powergrade. In general you're right, but if a powergrade is build up carefully to work accurate then it can give very pleasing results too. I love your approach and I highly recommend everyone to visit your website! Sadly in Germany we don't have much pro colorists sharing knowledge and showing such content. Thumbs up! 👌
@KenRossPhotography
Жыл бұрын
Very informative - thank you!
@talktalk4503
8 ай бұрын
Great vid as always! ❤ But what is the LUT you used here? I'm confused 😅. Thx
@StefanRingelschwandtner
8 ай бұрын
My goal was to show that LUTs are not only as effective as PowerGrades but can leverage unique mathematical transformations not achievable with PowerGrades. The LUT demonstrated is akin to my "Color Shift" DCTL operations, employing complex math for smoother color grading than PowerGrades typically allow. This video seeks to dispel the myth of PowerGrades' supremacy by highlighting the advantages.
@talktalk4503
8 ай бұрын
@@StefanRingelschwandtnergot it.. noted w thanks.
@raidiskandar3658
Жыл бұрын
Great insight!
@ChloeBanderas
Жыл бұрын
I don't think the reason wether some operations achieve the desired results or not is about the manner in which they're delivered. If you do different things you get different results. If you do the same thing by different means (LUTs or native Resolve tools) you get the same result, to a degree of mathematical precision. There are some operations, that are difficult to achieve with native tools (because of precise control or evaluation), but can more easily be achieved in another tool outside Resolve. Those could then be applied through a LUT instead of crafting the transformation inside the software. Or someone else has done the work for you. The benefit of a powergrade or native tools in general, is control and flexibility, because you're not bound to specific values. Is that it, or am I missing something?
@franzmathauser
Жыл бұрын
I agree 😅 the missing part of the video was to mention the modifications of the LUT. It looked like that baking the same modification into a LUT would solve that weird behaviors.
@StefanRingelschwandtner
Жыл бұрын
Agree. Some operations are difficult or impossible to achieve with native tools. External tools can help to do a "color transformation" differently, sometimes "less destructive". Some of these "external operations" can be baked into a LUT, some not. With this video, I just want to show that you have to be careful with PowerGrades, too. I want to inspire people to do their own testing and be open about LUTs, even if they don't have the best reputation.
@ChloeBanderas
Жыл бұрын
@@StefanRingelschwandtner I understand and support the goal and I don't want anyone reading to take my comment as criticism, but rather as an addition or a way of contextualizing the information. People who are not as much into the technical side of things can often see a comparison and take away from it, that one thing is better than the other. You can have good LUTs and bad LUTs and you can have good powergrades and bad powergrades. But if the transformation is possible to reproduce with a LUT there should be no reason why it can't look as good as any series of native operations other than interpolation or rounding errors, if I understand it correctly. Meaning: if you make a LUT from a (supported) grade in Resolve it should look the same as the grade. The difficulty in real life is, that you might not know what kind of operations where performed to create a LUT, which can lead to difficulties in edge cases or if it's not clear what Input color space the LUT expects and what it is outputting to in terms of technical transforms. Anyway, love your stuff! From one german Cinematographer to another. :)
@StefanRingelschwandtner
Жыл бұрын
@@ChloeBanderas I did not read your comment as criticism. All good. And all views on this topic are welcome. What you wrote about "bad/good LUTs/ PoweGrade" is exactly what I want to demonstrate with the video. Both are just tools. And people should use the tools that works best. A PowerGrade is not better than a LUT, and a LUT is not better than a PowerGrade. Both can be bad or good. About baking a PowerGrade into a LUT. In theory, you can bake any grade into a LUT, but a matrix or other math operations might "blow" a cube (go above a cube border. 0-1). If you bake those grades into a LUT the LUT will "cut off" certain colors. You can still modify the PowerGrade, but you cannot modify a LUT once it is baked. The LUT will give you the same "look" if you don't change anything. But if you make changes.. .a PowerGrade will not "cut off". You have to be very careful when creating a LUT. The input/output color space is just one aspect to take care of. When you are trying to bake a "grade" into a LUT it is best to view the grade in Fusion and create a cube. And view the grade in 3D space. Then you can see exactly if you "cut off" colors and so on. Keep commenting. Thanks for your feedback!
@ChloeBanderas
Жыл бұрын
@@StefanRingelschwandtner Ah, that's interesting with the matrix. I think I get the idea, but I need to play around with color spaces and a cube visualization to really get a feel for when something breaks there and why exactly. I'm all for more mathy and technical videos in the future, these in depth things are really hard to come by, especially in a more practical than theoretical context.
@suhaib2789
Жыл бұрын
I don’t think that a global hue vs hue would be wise to use as secondary adjustments, and definitely not fair to highlight the downside of a power grade vs lut
@aditya_akash
Жыл бұрын
Great analysis. Really confidance inspiring.
@alexalcaldeserrano
11 ай бұрын
nice video, where can i find that test images?
@StefanRingelschwandtner
11 ай бұрын
You can find the RGB test images on my website. Under tools. Search for “test charts”.
@alexalcaldeserrano
11 ай бұрын
thank you i appreciate that@@StefanRingelschwandtner
@tomaskonvicka4135
Жыл бұрын
I did a test with the same image, when the drop tool is used to select a narrower spectrum, the result is very similar. In addition, you can use for example a warp grid. It's a very misleading video.
@brentthomasaustin
Жыл бұрын
What is exactly happening in the LUT that you aren’t showing us?
@StefanRingelschwandtner
Жыл бұрын
This video is just a demonstration that you can store or bake "different math" inside a LUT. Transformation methods that are not possible with the native tools inside DaVinci.
@MikeHunt-r3i
10 ай бұрын
How was the LUT created? Post the LUT and let's see if there might be some other ways to match it within Resolve.
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