Lighting Help

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  • #615468
    jason david
    Participant
    Rank: Rank-2

    I have this scene and I'd like to create a lighting effect like in here
    https://www.widewalls.ch/chiaroscuro/
    However I don't have enough experience in Daz lighting for this project and I have seen they have this on their site https://www.daz3d.com/tenebroso-lighting
    So I already had help in LIGHTING from dedicated folks like @NotEnoughRupees so any help is greatly appreciated...Here is the scene but there is no Figure I mean human figure just the still life arounda black vase with twigs leaves and a piece of cloth on the left

    #616643
    ADAM
    Participant
    Rank: Rank-1

    Im no light expert but to me, most of them look like a single box light, a few a single spot light and maybe a few with 2 lights.

    Temperature ranges from white to dark amber.

    Id make an emissive plane or sphere and play with distance and luminous power. Once your happy with shadows and intensity id mess with color range.

    If you need more light add another plane with low intensity ti fill in the dark spots.

    #617325
    jason david
    Participant
    Rank: Rank-2

    Thanks @DOGGOD yes you're right about 'most of them look like...'Temperature is the key but also the placement and intensity yes... The shadows actually create the most difficult part to get the right amount on objects that are far behind...I tried this with a mixture of emissive spheres spots and cylinders between 2500 and 1500 temp...but also one with completely white...Here is what I got for now
     vases pots and a piece of cloth hanging on wire

    #617483
    ADAM
    Participant
    Rank: Rank-1

    i think it looks great but if you're still not happy with it, id save it as a tiff and mess with it in PS or some other paint program and play with exposure, contrast, ect...

    #617572
    EvilMonkey
    Participant
    Rank: Rank 6

    What you have to recreate is the sense of lighting from one source in an enclosed space, like being in a room lit from one window. Of course you would get reflected light and photographers would set up reflectors and fill lights to get the look they wanted, similar to what a painter or the day would do.

    My advice is to build your environment with your subjects present and then light it from the direction you want, then use fill lighting to pick up details you want to see. Then as Adam said you could try to play around with contrast and points of interest in post work.

    I really like the look you're getting in the bottom image but you really need to get everything nailed down because of the shadows you're going to draw. At the moment it looks like everything is floating, nothing is keyed to the surface.

    #617724
    ADAM
    Participant
    Rank: Rank-1

    That said, how well does iray handle bouncing light off a white surface? Thats a great way to get some soft fill lighting off of one light source.

    #617799
    jason david
    Participant
    Rank: Rank-2

    Great ideas both @DOGGOD yes I think i'm going to do some postwrok in GIMP for this one but still I need to get things nailed down as @EvilMonkey remarked so nice because i'm thinking of producing a painting later out of it when i have the time for it and as you @EvilMonkey noticed I need one light source and then enhance the reflective areas and yes things look floating even though they are ON the FLOOR...Thanks guys really helpful and encouraging I'll post a better version when I get it done

    #618718
    jason david
    Participant
    Rank: Rank-2

    Well, @DOGGOD and @EVilMonkey, I think I'm reasonably happy with this now thanks a lot guys no retouching yet...
     still life some jugs a book a cloth hung to a wire on a tree

    #618752
    EvilMonkey
    Participant
    Rank: Rank 6

    I think you've got the composition down nicely, it's interacting with surfaces well and the background is interesting without taking away interest from your subjects. But I think the shadow and dark points should be more prominent, giving more interplay between light and dark. Again I (personally) think that the light should be coming from one unseen source but it should be known what direction it's coming from, maybe using some godrays? The trick isn't to show every detail but to use light and dark to pick up details and convey the shape of the subject.

    The real problem I have with the above render is the highlight on the cloth, it's too prominent with no visible light source.

    #618759
    jason david
    Participant
    Rank: Rank-2

    Yes @EvilMonkey I can see I did something like that in this one but i thought it's too toned
     still life bottle bread and a table

    #618762
    EvilMonkey
    Participant
    Rank: Rank 6

    Yeah, that's the kind of thing. Now you need some way of getting light under the table for contrast, try snagging part of the cloth around the far left corner of the table. And maybe introducing another object to the top left corner of the table, so you get more shadow play across the objects already in scene.

    #618803
    ADAM
    Participant
    Rank: Rank-1

    1st pic i dislike the light in the middle of the picture.
    2nd I think rather than light the bottom Id crop/zoom in tighter to get rid of the negative space. The stuff on the table is the main subject for me and the ripped fabric is great. Id rather see it closer unless something interesting is hiding in the shadow.

    I think the painted look is spot on and great work.

    The only suggestion I would strongly consider is people.
    Now that youve almost perfected no people.

    Almost any photographer will tell you a person will make a photo more interesting. Or even an animal.

    Consider a sunset vs a sunset with a couple walking, holding hands or a empty park vs one full of kids and dogs.

    ps: Id turn the jug so the handle is visible. Not seeing it bugs me.

    #619555
    jason david
    Participant
    Rank: Rank-2

    yes @EvilMonkey as I can't really control the shadow gradation through the image, some postwork as suggested by@DOGGOD is almost necessary though I do n't do much but I see it in your comments i find mine too especially the Cropping that @DOGGOD mentioned and the Color Gradation on the left ...Great comments to keep me working on this with more interest.. I had a problem with that light in the center as I couldn't turn it down because I couldn't lay my mouse on it. it was embedded as a hierarchy in the emission sphere I picked from Fabiana Afterglow SET and as i hid it in the scene tab the node inside which is the lightbulb was on but hidden inside the hierarchy menu if you see what I mean until i deleted it and started again using a spot from the Italian Lighting Set, which is after all what i kept down here >>>
    vases pots a book and a cloth hanging on wires

    Next I am going to try to work on that gradation of light on the left and also on the right corner to keep the viewr's eye IN the image
    Thanks guys again

    #619677
    EvilMonkey
    Participant
    Rank: Rank 6

    Now that lighting is nice. It adds some nice shadows, hiding some detail on the cloth and the patterned vase, and it almost puts the foremost vase into full shadow, just leaving it as a silhouette.

    The only real issue I see right now is the shadows and their correlation to the light source. I can tell where the light emits from by looking at them as they are all splayed out and not very long. The light is placed at the height of the top flower, about 3/4 of your image width to the right, parallel with the rear vase. Whereas I think you need your light to be more distant, as coming through a window, so that the light is a subject but the light source isn't thought about, just taken as a given.

    It still looks great as is though, I love the effect you're using and can't wait to see you use it with a figure.

    #619812
    ADAM
    Participant
    Rank: Rank-1

    ive read a bit on light. distance will help to make shadows sifter I think. So possibly move the light further away and increase the intensity.

    Ive found this one to be helpful.
    (https://basic3dtraining.com/biggest-daz-studio-iray-secret-fabulous-lighting/)

    A few others on mesh lights also but linking atm if difficult for me on the phone.

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