Master Class 7

[OPEN_RANGE]

I am trying to find what the LUT was that the presenter used in Master Class7? If anyone knows what that specific LUT was please LMK. Alternately if anyone knows the email for questions to the presenter I could use that.

Thanks

[fixeighted]

I was trying to remember that also...and eventually did; Kim Amlan.

Although it was an interesting experiment, the overriding fact that none of this content is available to paying subscribers is utterly baffling to me.
I cannot be alone in not being able to remember every single detail of what was shown, especially as, like many others, I missed the majority of the content for various reasons.
I'm pretty sure that tech exists to allow for re-viewing the content with the ability to save the video being disabled, if they are that worried about that aspect.

Anyway, if you want to try the LUT then you can just install a Corona trial and extract them from that

[OPEN_RANGE]

Thanks Bart! I found this link but was thinking the presenter mentioned one specific LUT that was the only one you will ever need. Not sure if that was true for interior as well as exterior scenes. The link on gum road looks interesting and I will likely try the limited package version that’s offered there.

Like you, I cannot understand why these master classes could not be recorded. I suspect that they may be offered for sale at a future date or……who knows? I saw something somewhere where his company was offering a course on how to use the various AI options for arch viz and I think it was like $1,500 for the course.

https://3dimperfections.gumroad.com/...otograpic-LUTs

also there was an email address that you could write into with questions about the classes. I used it once after one of the earlier classes and got a reply and answer. I thought to try that but cannot remember that email address, amd I’m pretty sure he did not say it and remind the viewers of it on that last class 7.

I thought the classes were great, especially considering they were free. The presenter was really good especially in the enthusiasm department.

[fixeighted]

The specific one mentioned was Kim_Amlan_photographic_one iirc.
Corona includes 3 of their LUTs and that one looks the most likely.
I got it from the suggested Corona install to check out today.

[OPEN_RANGE]

Thank you!

[glorybound]

I have dozens of LUTS and have always been looking for the perfect one, which doesn't exist. I have spent some serious money on them, and I would say don't waste your time or money. I have software that is supposed to create an LUT from a photo, and I have learned to create my own LUT from an image. It was a long, exhausting road that went nowhere.

[fixeighted]

Yeah...it's all very subjective in any case. Grading is either a personal choice or an art directed one, so I think the dude just found one that he thought was the average best for his style.
Out of the 80 LUTs that ship with Corona it'd be hard to disagree,... the rest are on the recycle pile
For that terracotta thing I actually did use the Kim Amlan one, mixed with the stock Filmic and the blend was pleasant, so I'll use that combo for the rest of the series, as they all have the same look.

[OPEN_RANGE]

Thank you guys. I have a batch of LUTs that are "3DCollective_Free_Linear _LUTs". I have spent considerable time applying/cycling through the 49 LUTs contained. I usually add then as an adjustment layer in pshop but have also tried them in the vray VFB. Most are not good for my needs, but still spending too much time trying each one via trail and error. Also painstaking to whittle down to a few that maybe used most often.

I always add the Filmic tonemap in the VFBI and now unsure if it's advisable to use both a LUT and the Filmic tonemap on the same image. (two tone maps?)

I'm guessing there is no "rule" or even "best practice" and you mix, match, adjust opacity, etc as you like. All trail and error.

The presenter in that master class was pretty emphatic about the tonemap being the only one you ever need to use.

[glorybound]

How do you find yourself using the Filmic tonemap? I set my burn value to .5, which seems to do the same thing.

[OPEN_RANGE]

I generally just add the default Filmic tonemap to the top of the stack in the VFB layers and also usually have an exposure layer with burn 0.9. That is all from past understandings and for me is sort of a do it each time regardless cause that was what seemed to be recommended and lacking any other knowledge or etc type thing. Sometimes I also add a Curves Linear Contrast adjustment layer in pshop with varying amounts of opacity.

[piotrus3333]

heh.
interesting read as I just yesterday thought about selling a lut pack..

the thing with a lut is that it expects a specific input: ACEScg, linear BT.709, ARRI logC etc. and outputs to specific display too.
if you don't have this data you are just throwing some random numbers around.

with luts from Corona - you need to "gamma sandwich" the lut if you want to use it as intended in any other software. one of those weird Corona design choices.

if you are looking for some nice colour recipes go to colourists and camera manufacturers not to cgi people. they figured it quite a while ago (although new ideas appear almost every year).

an example of a decent lut: (attached. it combines old famous arri K1S1 rec709 lut with AgX, resolve version, display transform)

[piotrus3333]

attached: compare the Corona lut with something actually made by professionals - default RED camera display transform. (image: Testing_Imagery/alexa_BT_709.exr at main · sobotka/Testing_Imagery · GitHub)

edit: both images saved from Corona Image Editor.
edit2: added Kim_Amland_Photographic_01

[Joelaff]

I don't get the fascination with LUTs. Grade your luminance with a Curve and adjust the colors to your liking with whatever tools work for you (including a curve if you like). At least that studio example is not particularly challenging. I get that some crazy hi-contrast renders with sun level lighting can be more challenging to nicely roll off the highlights, etc,. but it's not hard. It's all subjective. I suppose LUTs may give you a nice set of starting points to look at if you don't have any good ideas on how you want to grade a shot. In other words, like"Variations" in Photoshop (which I seem to recall was initially a feature of Kai's Power Tools that Adobe copied).

[piotrus3333]

LUT is just a container. it can be some silly look inside or actual technical colour mastery from ARRI.