Build Your Resolve Toolkit for Proper Exposure
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- เผยแพร่เมื่อ 6 มิ.ย. 2024
- Here are a few options for building a toolkit to finesses exposure no matter what kind of footage you get.
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I have been using the HDR wheels for months now and it just feels intuitive and natural to me as opposed to the primaries.
No right or wrong, but my brain just grasps these wheels better.
Thats cool!! for me I tend to find the primaries way more easier to digest and less “convoluted”. As soon as i open the hdr wheels I immediately get overwhelmed 😭🤣
I love and agree with you on the simplicity concept that you bring up frequently - My question however: Why not use the HDR wheels as your sole pallet, given the importance of exposure? As someone who has done photography for many years, and being relatively new to video, I immediately grasp what's happening with the HDR wheels, where I don't necessarily understand the Primaries in terms of stops - I don't know if there is any real value in knowing stops within the Primaries as long as the image ends up where I want it to be - I do look at the number in the Primaries really just to know where I need to return to if I'm not happy with an adjustment.
Learning how to measure stops in linear gain is something I didn't know was possible, super nice as I love using linear gain and want to get a feel for stops aswell
Well, you can't just type in what you want because it only affects 1 out of the 4 number fields. Also when doing small adjustments you can see the wheel turning with visible change in the viewer but the numbers don't change... like 2-3 clicks of the wheel rotating do not affect the numbers bellow it.
If you have the panels go for it, if not meh.
Thank You a lot. Straight and simple way of solving expo problems.
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Very helpful. Thank you.
I learned about the linear gamut for the first time, so as not to switch to the HDR panel. Although, to be honest, the HDR panel gives fine-tuning of the exposure of the image areas without capturing neighboring ones, as the main panel does.
I always struggle with deciding whats a good exposure or not. Obviously the answer is whatever best suits the image and creative intent, but theres always that little voice in the back of my head that says “wrong”
Thanks Cullen 👍
Well I left a long and detailed comment on here this morning that appears to have not been saved.
The gist of it was - I don't see how using a linear node change in the primaries gains any time or is easier than using the HDR tool.
In Fact if you carried that logic, then clicking the icon and going to the HDR tool to set exposure, you could stay on the HDR tool to then do the contrast, as the HDR tool being color space aware is in this situation set to the timeline color space and the pivot is already set for DWG.
I also mentioned in mixinglight the possible problem of any LUT creation for example a Display LUT that changing color spaces on a node wouldn't write to the LUT. But I haven't fully tested that. But if true , using linear gain for exposure would look completely different.
So you would need a full out CST to change the color space to Linear, and another to pull out of it - which would hardly be easier.
Cullen, I know you're not the biggest HDR Tool fan, but I think it actually works really well, once you remove the comparisons to Primary wheels - which the visual appearance of the wheels tends to put people in that mindset.
Even the use of "Zones" is a bit misleading and the defaults don't help. The more I use it though, the more I appreciate BMD adding it and have incorporated it into my workflow.
If you have a fixed node tree with an exposure node already set to linear you can use the wheels on your panel straight away which is faster and more intuitive than HDR wheels. I can understand his preference there. Contrast on HDR wheels is not the same as primaries. In HDR only luminance is affected. As to the LUT problem, if true I don't see a reason to want to change exposure for a Display LUT or a Show LUT. You only change exposure while grading to either correct or enhance the image.
@@shebbe All good points - the HDR contrast I was pointing out that it is faster and if it is on a fixed node tree as HDR it is identical in speed - I happen to like having it luminance alone. So for me that is not a negative.
The LUT problem is only a problem for those that are needing to make them. Pointing out that, is just that anyone doing so should be aware of it.
@@JimRobinson-colors Thanks Jim, will have to definitely test this also with color space changes I've made to various nodes incorporated into my node tree based on previous videos
Thank you for this gold. Is there also a way to do Temp and Tint in the primaries that works the same way as Temp and Tint in the HDR palette?
Nice! - Great video. As always.
Question on terminology: In the part where you reference that the HDR and linear gamma gain shows exposure in stops, is that precise language? It's correct that in linear gamma, the gain represents physical light (i.e. nits) and every 'stop' doubles the amount of physical light (i.e. logarithmic function). But you describe the wheel as showing the gain in stops. I think it actually shows you linear gain, but the numeric value on the dial is not stops, it's the multiple of the baseline in linear math. The reason that matters is because some color operators, such as the Baselight Basegrade and some other have actually a scale in 'stops' not 'linear gain'. A dial that shows you the adjustment in stops should really be 0 at the baseline and then -1, -2, -3 or +1, +2, +3 stops.
The essence of what you're saying is totally valid, it helps us think in stops of adjustment and gives us language with DPs and creatives that are used to that model. Just want to make sure that folks watching this videos don't walk away with the wrong definition of the numbers as seen on the dial.
Let’s go!!!
Would you keep the linear gain node solely for the exposure adjustment and then have a separate node for primary adjustments that’s not changed to linear gain? Or would you just do exposure and primary adjustments within the linear gain node?
Thanks for another informative video
Do we also get the color space awarenes when working with CST's and adjusting these settings downstream a log>davinci intermediate CST?
Hi Cullen : this question please :
in this gamma LINEAR selected node mode, do the optionnal selection of the chanels 1,2,3 is also effective ?
and in this case of using selected chanels, do they still follow this architecture (inherited from HSL or HSV) :
channel 1 : HUE
channel 2 : Saturation
channel 3 : Luma / light
?
thanks
Am i wrong using a timeline's color space into rec.709 gamma 2.4 ?
rather than turning it to DWGamut color space ?
you said, DWG working color space is the only way to use perfectly the LINEAR gamma mode.
To reach as most as possible the "what you see is what you get", I've turned my working screen in rec709 gamma 2.4
should the exposure's adjustements totally false ?
thanks
Hey Cullen, interesting video as always! I have a question: I saw that in the HDR panel I can choose the Color Space and Gamma in which the HDR panel works in. If I would select the same ones as what the footage was shot in, would the HDR panel mimic the behaviour of the camera? Or am I missing something?
It needs to match the current incoming data into the node you want to use HDR wheels on, which in RCM would be the timeline working color space you chose unless you converted to something else before.
@@shebbe ah yes, thank you for clarifying :)
great
Great video. Is there a paper on Resolve's mathematical functions for the primary wheels that I could read up on?
What's the difference between primaries and exposure in the raw tab?
wow didn't know Black magic's panels didn't have a dedicated exposure knob. or an automated page management solution.. you'd think that would be the one to have
Cullen, I am seeing a problem with using the Linear gamma in resolve. The shadow areas start becoming heavily noisy for me if I go to linear gamma and then reduce lift and then in another node, if I set that to linear gamma and increase gain. It causes pretty heavy noise. Even in otherwise decently exposed footage. This is not seen when operating in timeline space instead of linear. Why is this happening? This limits the usability of this linear mode toolkit quite a lot in my case. I do have proper color management set up in Resolve.
Tools in linear can behave much differently than they do when working under a more traditional log curve. In the bottom end of tone scale, lift can be much more sensitive. In the example here, we're using linear in combination with gain strictly for photometric exposure!
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Thank u so much sir♥
good stuff. enough said.