What is the HDR Tool - & what is DaVinci Wide Gamut ?

hi my name is darren mostin and in this episode i'm going to look at the hdr tools and i'm going to give you a little introduction into the resolve color management so we're not going to go too deep but we're going to get you started so let's take a look so in this episode i'm going to be looking at the new hdr tools that came with davinci resolve 17 and also the new color space the davinci wide gamut i've had a lot of requests for this episode so i'm going to be using the scopes to start with so if you don't understand how to use scopes i've done a dedicated episode on that so you need to watch that one first so in regular primaries you've got lift gamma gain and an offset so we've got four controls if you like so this one is doing darker regions mid tones and highlights and this one is doing overall image now if we move on to the hdr tools you've got a similar looking layout but you've actually got more zones so we've got black dark and shadow and then if i press this top one here we can see the next three light highlights and specular highlights so we're covering a much more defined range and then you've obviously got a global offset as well okay so we can go between these by just pressing down in a singularly so we're just moving up through the range or if you press the bottom one you get the bottom three and the top one you get the top three so that's how you navigate around these things you can only have four of these wheels open at a time you can take the global off here so that it's not there permanently and to do that you need to go into the zone tool which is up here so this tool works in conjunction with these so this is basically this is your control and this is defining where these different zones are operating so let me show you to show you how to get rid of the global by the way if you click on the menu here you can say bank global with color wheel if i take that off you see now we've got shadow light highlight and specular highlight so you can see you see more zones at a time personally i prefer to have the global on there all the time so each of these zones is represented on this graph so if we want to see where shadow is for example if i just click it there's shadow and shadow covers all this region the arrow is facing down so it goes from this line all the way down here so shadow includes dark and black if i click on dark you see that's within the shadow range and black is also within the shadow range so dark contains dark and black shadow contains shadow dark and black so all three zones now light and shadow actually cross over so shadow covers all this region and light actually starts within the shadow region but the arrow is facing up so it covers all this region up here highlight sits within light and specular is right at the top there is overlap on these and that helps create a much more pleasing image so i could reduce exposure in light and then put exposure back in in just the highlights so we'll really start controlling i'm going to show you that in a real example now you'll also notice down here our range so we've got eight stops and plus eight stops and zero here so zero this is your eighteen percent mid gray line then we've got eight stops of exposure down and eight stops of exposure up now our graph at the minute our grayscale is stopping here at exactly 100 nits and that's because we're currently in rec 709 we're not in hdr space so rec 709 is only capable of going up to this 100 nit line so if we want to change that if we go to our project settings and we're currently in davinci rgb color manage but we're in sdr rec 709 so we're in standard dynamic range 709 now if i change that to be a wider color gamut we can go here to our davinci wide gamut okay a quick tip here by the way if you're playing with these settings every time you press save it closes down so what you can do is you can change the setting and if you press your alt option key and press save it makes the change but keeps the box open so it means you can go through the different settings and find the one that works for you so i'm going to switch that back to davinci wide gamut our output color space is still going to be rec709 gamma 2.4 i'm going to save that and you see what happens now is we now have the grayscale covering our entire range of stops we've now got 16 stops that we're covering here this now means our specular highlights is included whereas in rec 709 specular highlights was outside of that region let me just show you if i go back to rec 709 click on that you see 100 nits stops here and specular highlights here is outside of the zone so if i adjust specular highlights nothing happens because it's outside of the zone so let's go back to our davinci wide gamut and what this is doing is giving you a much larger color space in fact you can read it here an extra wide gamut log gradient environment suitable for sdr and hdr deliverables so you don't have to be outputting hdr to use a wider color space just gives us much more use of these high dynamic range tools because we can use these tools in standard dynamic range as well so for regular sdr grading you can use the high dynamic range tools so you've also got these tools down here which are similar to the ones that are in the primary tools but they do behave slightly different in hdr mode so for example temperature here i can control it here or i can control it on the global wheel here so if i push towards warm and then go towards cool you see that warm has a much heavier bias than cool so cool is very subtle it doesn't actually affect it as much as it does in the primary control but whereas warm is quite obvious we've also got this black offset control as well so if i bring exposure down you see that you always get this nice roll off in hdr and the point where it rolls off is controlled by the black offset here so if i just lift that we've now i've now just raised the point where the black rolls off so you get a really nice roll off in the blacks and the highlights so let me just reset that and you'll also see here in the zones that you can switch them on and off as well so if you don't want specular highlights for example you can literally switch that zone off so you've then only got five zones to deal with you can see that the number of circles down here is decreased you can also add your own zones so you can click in here and create your own zone and give it whatever name you want and you'll notice here there's this thing called falloff so let me show you what that's doing so fall off is defined by this red line so at the minute we're on dark so let's move up to shadow okay so on the shadow obviously shadow as we know the arrow goes to the left so it's going from here so just above our 18 line all the way down to the bottom to show this look what i'll do if i just put some color into shadow so let's just go here let's add some color in there and we've got a little bit of fall off in here already now what this is what this means is that the blue color that i've just put into shadow goes from the very bottom all the way up to the shadow mark here in the zone now i can move these zones so you've got full control over that and also what i can do is adjust the fall off so at the minute we've got our blue coming all the way up through the dark zone through the black zone and at this point here it starts to fall off you can see our red indicators it starts to fall off just before it hits this point here now we can adjust that using this falloff zone here so the higher i put that up the sooner in our exposure that that blue i've put into the shadow is going to start falling off so it starts falling off here and by the time it's got to here it's completely fallen off so if you want to use the whole zone you need to take your fall off off so this is helping us get a more pleasing look because the zones do overlap so that's what the falloff is doing so now we've sort of gone through what everything's doing let's have a look at it on an actual image so i'm going to reset this just do a global reset and in here i've got an image and because we're in a color managed space this has gone to rec 709 automatically so uh let me show you how that's working if i go to my clip here if i right hand click and say input color space and this only appears when you're in a color managed workflow if you're in non-color managed you don't get input color space and you see there we've got black magic design so davinci resolve knows that it's a black magic clip and it puts it into the rec 709 color space which is what we've got set for our output the davinci wide gamut and the new hdr tools have much better tone mapping than in version 16 so you don't have to worry about it so much now you do still have control over it but by default it's working really well so just to show you if i came out of that and went into non-color managed and press save you've got your regular log looking um blackmagic raw file whereas if we go to color managed it automatically puts it into 709 color space for us so let's go to a wide gamut and say save and you see now we've got our nice exposure down here got plenty of dynamic range to play with and just to show you again if i put that back into regular it cuts off at 100 nits so that hopefully explains what the davinci wide color gamut is about okay so the first thing i want to do is check my zones where they're sitting in this image so in order to do that if you just click next to each zone you can highlight what's being covered so let's go down to our blacks and you see the black is not actually even covering anything now what i want to do is be able to move the zone map at the same time as seeing what's being covered so to do that if i put my highlights on up here then you can actually grab your zone map and move the tool so i'm moving the blacks now let's adjust the darks and the shadows i'm just gonna check that's not covering any sky like so now i can adjust the fall off here so you can see that happening on the image so it's a really good way of setting up your zones so usually the dark and the specular are not included so yeah so specular is only just covering her watch there but i want to get a little bit of cloud in there just a little bit and that's our highlight so once you're happy i can then take off the highlights and you can adjust the zones after as well what i often do is do a little bit of grading and then go and adjust my zone after as well so let's bring down our global exposure again we're never going to get below that certain point because we get that really nice roll off which is controlled by the black offset let's bring my exposure down a little bit i'm going to work on the black dark and shadows first so let's bring our blacks right down there and take out some saturation let's check our darks uh shadows i don't want to lose any detail in her hair so bring it up there i'm just going to put a little bit of coolness into the darks okay great now let's have a look at the highlights so again clicking here brings you the three highlight areas you've got light highlights and specular so if i bring down light and then i can boost highlight which will give us a bit more contrast in those clouds because i've brought the overall level down remember light covers all these three and then highlights will punch a little bit of light back into the clouds so there we go let's just warm that up a little bit okay and i just want to show you what's happening with contrast so this is just slightly exaggerated but just to show you if i increase or decrease contrast you see that you get a very different look than you do if you did that in primary controls and that's because saturation remains constant when you're using contrast in the hdr tool over the primary tool so let me reset that and if i show you that in the primary control you see that you get more saturation as you increase contrast so it's a very different look so remember you can use the hdr tools in sdr so if you wanted your contrast to behave like this then you want to work in the hdr tools let's just put a little bit in there so let's just see that before and after so i just want to adjust these clouds a little bit so i'm going to get to my zone to do that as opposed to adjusting the exposure let's just push our highlights up a little bit and you can see that affecting as i move the zone let's adjust i'll fall off a little bit so let's just check our temperature controls okay maybe somewhere there and that's looking good so i hope that's helped explain the hdr tools and the davinci wide gamut look after yourselves and i'll see you in the next episode

Channel: Darren Mostyn

Views: 37,365

Keywords: what is the hdr tool, High Dynamic Range in Resolve, resolve 17, davinci resolve, resolve16, resolve17, killertips, how to use resolve, editing with resolve, learning resolve, tips for resolve, colour grading, color grading, killer tips davinci resolve, killer tips, High Dynamic Range, DaVinci Resolve HDR, Resolve 17 HDR, DaVinci wide gamut, How to use HDR tools in Resolve, Darren Mostyn

Id: aoS-yLYtOh8

Length: 12min 41sec (761 seconds)

Published: Mon Nov 30 2020