Inaccuracy when using Facegen Artist Pro (cf. Face transfer, Headshop)

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  • #1962116
    maryssmith
    Participant
    Rank: Rank-1

    I am using only the front photo to generate a G8F model and thought at least it should give me an accurate front sculping for my model but unfortunately not. Here is the illustration of what I got:

    This is the profile photo I am using:

    photo

    The generated points from face (auto)

    points

    I chose the morph (named abc) to be 100%. Look! This faceshape is already different from the auto cut-out of the face above!

    morph

    and applied the textures:

    with texture

    It looks very different from the original photo in my opinion. For me, Facegen Artist fails to capture the ratio for the upper/middle/lower of the face. For the middle portion of the face, Facegen makes the distance between the eyebrows to the tip of the nose look very long compared to the upper and lower parts. In the original photo, three portions are uniformly distributed "1/3 - 1/3 -1/3"

    one third

    Does it also happen to you guys, or I missed some important steps? You can also try it with the same photo yourself... but I feel like by design Facegen is not good at capturing this problem and I have to do the morphing all over again to get a G8F model close to that photo...

    BTW, I feel like the "modify" option in their software cannot fix this well since I cannot see the forehead.

    modify

    #1962123
    maryssmith
    Participant
    Rank: Rank-1

    The built-in Face transfer seems to perform better in vertical ratios of face but bad in horizontal shapes. For example the same photo under Face transfer gives

    face transfer

    which fails to capture the triangular shape (or slope of two sides of the face) of the jaw-chin area of the photo

    #1962161
    gts6
    Participant
    Rank: Rank 4

    @maryssmith Using either Facegen or FaceTransfer is never 100% accurate and requires some tweaking in DAZ. Use some of the morphs that are available to change faces. Also you can combine the one from FaceGen & the One from FaceTransfer. Experiment with the 2 sliders for each of them combined for a good setting, and then tweak further with other face morphs.

    #1962188
    Frank21
    Participant
    Rank: Rank 5

    Don't want to sound negative but I've tried FG and Headshop and I don't think they're any better than the DS FaceTransfer tool.

    #1962196
    gts6
    Participant
    Rank: Rank 4

    @frank22 If you have a great source image with high resolution, I haven't seen the others even come close to Facegen, particularly with the skins. I've had some pretty amazing results most of the time with Facegen, followed secondly by FT. Headshop has had terrible results for me and I won't even bother with it at all. For best results, try both FG & FT together, then adjust the sliders together to get the best of both combined, and use the FG skins (which are far superior to the ones FT spits out)

    #1962221
    Frank21
    Participant
    Rank: Rank 5

    Up until now I generally only use the morph and not the textures because as you say it's often hard to find a hi-rez face image. Using the FT shapes utility can also help the final result.
    The only likeness I've ever achieved with moderate success using FT was this below. I had to do a lot of extra stuff like making normal maps, texture colourisation and tweaking to refine it.

    h

    #1962254
    Frank21
    Participant
    Rank: Rank 5

    LP - Much the same as I said on the Daz forum... before they deleted my post LOL. And also similar to a comment I made on their "Celebrity Look-a-Likes" thread, with the same outcome. I was trying not to be too negative in my post above but you're right LP. On the odd occasion you might be able to produce something acceptable but not usually and not without a lot of extra work.
    Photoshop is now incorporating AI and a plugin for Stable Diffusion and just maybe if DS went down that path making 3D likenesses from photos could work if AI-assisted. Of course this opens the usual AI Pandora's box of copyright, authorship, derivative art, originality, etc, etc.

    #1962276
    gts6
    Participant
    Rank: Rank 4

    Why did they delete your post? Just because you criticized a vendor? I didn't realize they censor posts there, I have never joined there.

    As far as FG & FT, yes I agree with all of you that these tools are not too accurate. All of them REQUIRE 100% manual adjustments with other face morphs in addition to their outputs. But sometimes it can be a good starting point if you luck out and it looks similar enough, its easier than having to start from scratch. But of the 3 I had better luck with FG most of the time except in cases of a photo with a smile, then FT was the better. And the FG face skin seems to be an actual scanned image that gets integrated and wrapped into the shape of the daz uv map. So at least that portion is pretty accurate.

    #1962280
    Frank21
    Participant
    Rank: Rank 5

    "I didn’t realize they censor posts there... [Daz]", you must be fucking kidding. I've had scores of comments deleted there... negativity, speculation usually, criticism, especially if you mention Daz policy, poor QA, corporate decision-making/direction. I'm sailing close to the wind for a complete ban and membership cancellation like some others I know. Just a matter of time but I'll wear it with pride. The forums are closely monitored and anything seen as threatening their bottom line (making more money) gets pulled.
    With the "Celebrity Look-a-Likes", never mention this...

    s

    #1962290
    gts6
    Participant
    Rank: Rank 4

    Guess i'm glad I never became a member of that forum then. But in regard to the celebrity look alikes, I didnt think DAZ sold any of those. But aside from celebrities, I see a lot of their "main" vendors regularly release characters that are pretty much the same look every single time. I can see the image and know right away which vendor produced it. It's like if you've seen one character from them, you've seen them all.

    #1962373
    mxyzptlk
    Participant
    Rank: Rank 7

    I'll be honest. I have a look that I like and seem to subconsciously gravitate towards. I imagine that affects some vendors, as well. I know that some of it has to be a conscious decision based on sales trends. I've recently been focusing on celebrity morphs to try and avoid morph duplicates.

    #1962402
    ulysses
    Participant
    Rank: Rank 3

    @littlepleasures wrote: 'desperately hope'

    You're right of course about what folks are using it for. But desperately? lol The folks here get it for the astounding price of 50 points.

    #1962406
    ulysses
    Participant
    Rank: Rank 3

    @frank22, the copywrite thing could be resolved by making DS open source. Then anyone could develop plug-ins. We all know DAZ will never allow this, but dang it, it would solve so many issues that they have.

    #1962473
    maryssmith
    Participant
    Rank: Rank-1

    With AI technology I believe creating a model identical is completely possible. Even with pictures whose quality is not good.

    Microsoft's Rodin looks good but I have no idea how or when we could use it on Daz

    https://3d-avatar-diffusion.microsoft.com/

    #1962517
    Vanimoch3dx
    Participant
    Rank: Rank-1

    Technically one could use OpenCV to detect the facial features in the photo and create a 3d model. Or scan the Daz G9 face and move bones or apply morphs to make sure they are identical. Many points are detected with 3d coordinates so one can adjust all 3 axis (z axis not very accurate). It's not too detailed and I think there is no Blender plugin available to automate this.

    Facial Landmarks

    Facial Landmark Detection Simplified With Opencv

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