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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

DYNAMIC RANGE 22 Stops

Can someone share any information on how you can use the A/X tracks (HDRX) in DaVinci - I know how in Redcine but was not aware at all you could take advantage of HDRX in davinci?
 
Can someone share any information on how you can use the A/X tracks (HDRX) in DaVinci - I know how in Redcine but was not aware at all you could take advantage of HDRX in davinci?
There's two ways to use HDRx in Resolve. First is just using the blend slider in the RAW settings (like in REDCINE). The more involved way is to right-click the node graph of an HDRx clip, and choose "Add Source." For HDRx clips, Resolve automatically makes the second output the x-track. You can then use a parallel or layer mixer node to mix the two sources, using power windows and/or qualifiers to isolate the areas you want to mix, and of course making separate adjustments to the A- and X-tracks.
 
There's two ways to use HDRx in Resolve. First is just using the blend slider in the RAW settings (like in REDCINE). The more involved way is to right-click the node graph of an HDRx clip, and choose "Add Source." For HDRx clips, Resolve automatically makes the second output the x-track. You can then use a parallel or layer mixer node to mix the two sources, using power windows and/or qualifiers to isolate the areas you want to mix, and of course making separate adjustments to the A- and X-tracks.

Thank you Kevin! That will get me going...
 
Can someone share any information on how you can use the A/X tracks (HDRX) in DaVinci - I know how in Redcine but was not aware at all you could take advantage of HDRX in davinci?

Good question, but I don't know the answer, since I don't use Resolve. But what I do know, is the procedure in After Effects:

Two layers, track A and track X, with the track X as the top layer.

Set track X to multiply as a blending mode, (top menu-layer-blending mode..)

Click the little arrow on track X and adjust opacity to taste.

Use a third adjustment layer on top of those for curves, saturation, efxs, whatever, (top menu-new-adjustment layer).. Simple.
 
DI pros and very careful colourists are doing brilliant work on the digital images, especially in Davinci.

I was with you all the way, until you said this. So, now I must ask. What is so special about doing HDRx in Resolve? I'll give you a hint. HDRx decoding and implementation is based on Red SDK, which means, that ALL color grading software works EXACTLY the same:-)
 
I was with you all the way, until you said this. So, now I must ask. What is so special about doing HDRx in Resolve? I'll give you a hint. HDRx decoding and implementation is based on Red SDK, which means, that ALL color grading software works EXACTLY the same:-)

No, well, not really. Scratch has much better control via curves for mixing of tracks than DaVinci with its linear (and in my opinion crappy) HSL qualifiers.
 
Yes to keyframes and even masks for HDRX in Redcine X. One might question this in a "conform" tool like redcine X, but if we think of redcine X as a FIlm Lab for red raw footage, we should also know that film labs allow you to do selective control of exposure in areas of the film frame. I'm not talkig about adding the high end features of a software like resolve, such as motion tracking, just keyframeable masks that we could apply to an HDRX image, making it easy to select what we want to raise or lower in terms of exposure.
 
I dunno... it kind of looks awkward. The whole point of HDRx is to have smoother/film-like highlight roll-off, and this looks more like tone mapping. I'm pretty sure (I could be completely wrong) the reason HDRx/MagicMotion/Simple only uses "15%" is to maintain proper contrast across the massive amounts of DR... In other words, its used to preserve detail in highlights (like film would have), but not necessarily be properly exposed.

...The other thing is that native DR of 16-18stops won't have the motion artifacts of HDRx (which only increase as you push it further... 1 stops of HDRx is fine, but I've noticed that a 2+ it becomes very noticeable... The opposite of ghosting.)
 
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Thanks Greg. Used to use Photomatix with dslr's but never thought about using It with my Scarlet..
 
I have been blown away by the results we get using HDRx. Getting a very natural look is pretty easy with the right grade and settings. Check out these frame grabs from a test we did a while back. These were all shot at +3 and +4 with a very dark interior, a very bright exterior and only ambient light. The main problem has been cleaning up the motion artifacts, but even that goes unnoticed by all but the most trained eyes.



 
The clips above were done utilizing photomatix, just a different grade/process
 
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