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Hair Cards Transparency

Home › Forums › Graphics / Blender › Hair Cards Transparency

Viewing 15 posts - 1 through 15 (of 21 total)
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  • 2024-02-20 at 2:54 am #70811
    tomtm
    Participant

    Hi,
    I tried to visualize hair cards with the different alpha blends.

    Strange thing is that Alpha Hashed looks the best in my Meta 3 Headset, but in the
    Desktop Chrome Browser it looks too bright, see attachement.

    Alpha Clip looks very rough and Alpha Blend looks strange too.

    How would you visualize hair cards?

    Thanks Tom

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    2024-02-20 at 6:53 am #70814
    xeon
    Customer

    I am not familiar with the term “hair cards”… but willing to give the problem a go.
    Are these cards 2D image planes (.png or other file format?) or are they a 3D object with a material applied.

    If 2D …what image format are you using?
    if 3D can you post your shader nodes?

    Also what are you color management settings?

    Xeon
    Route 66 Digital
    Interactive Solutions - https://www.r66d.com
    Tutorials - https://www.xeons3dlab.com

    2024-02-20 at 7:00 am #70816
    kdv
    Participant

    Alpha Blend usually gives the best visual result. In your case disable “Depth Write” in the material properties.

    Puzzles and JS coding. Fast and expensive.

    If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

    2024-02-20 at 1:44 pm #70824
    tomtm
    Participant
    kdv wrote:

    Alpha Blend usually gives the best visual result. In your case disable “Depth Write” in the material properties.

    Thank you kdv!

    Now it looks better.

    2024-02-20 at 6:38 pm #70828
    tomtm
    Participant
    kdv wrote:

    Alpha Blend usually gives the best visual result. In your case disable “Depth Write” in the material properties.

    hmm, after testing it also in bright environment it still looks strange, like it‘s not double-sided depending on some view angle.
    Best would fit Alpha Hashed, but it shows some white edges.
    Are there some good results with hair cards and verge3d?

    2024-02-20 at 7:13 pm #70829
    kdv
    Participant

    Nobody here even knows what hair cards are )))

    tomtm wrote:

    like it‘s not double-sided depending on some view angle.

    Make the material double-sided.

    When I need to use textures with the alpha channel I use these parameters for materials making them look exactly like in Blender.

    https://v3d.net/t7l

    Puzzles and JS coding. Fast and expensive.

    If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

    2024-02-20 at 10:21 pm #70847
    tomtm
    Participant
    kdv wrote:

    Nobody here even knows what hair cards are )))

    tomtm wrote:

    like it‘s not double-sided depending on some view angle.

    Make the material double-sided.

    When I need to use textures with the alpha channel I use these parameters for materials making them look exactly like in Blender.

    https://v3d.net/t7l

    Hi kdv
    Thanks for investigating.
    I did make the material double sided and used your settings above except GLTF 2 Compatible, this would look like Opaque Mode.

    Here you see what I mean, when the bun facing the camera, it’s some kind of transparent.
    I know, it also needs a hair colored scalp, but I think there is something strange.

    And if you try with Meta Quest, it’s like inverted. But in Meta the Alpha Hased works.

    https://v3d.net/t7o

    • This reply was modified 9 months ago by tomtm.
    • This reply was modified 9 months ago by tomtm.
    • This reply was modified 9 months ago by tomtm.
    2024-02-21 at 12:04 am #70856
    xeon
    Customer

    Can you post the image file you are using or a sample of it?

    Xeon
    Route 66 Digital
    Interactive Solutions - https://www.r66d.com
    Tutorials - https://www.xeons3dlab.com

    2024-02-21 at 12:22 am #70858
    tomtm
    Participant
    xeon wrote:

    Can you post the image file you are using or a sample of it?

    Hi Xeon

    I will setup an example scene with blender file tomorrow.
    I hope there are some tricks to get some more beautiful results in respect
    of the strange transparency.

    Greets Tom

    2024-02-21 at 1:20 am #70859
    kdv
    Participant

    attach here just the head with hairs ))) all used images save inside .blend

    Puzzles and JS coding. Fast and expensive.

    If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

    2024-02-21 at 2:21 pm #70887
    tomtm
    Participant

    Hi
    Attached a simple head with a simple hair cards object an a clip map.
    As you can see, the Alpha-Blend mode is some kind of strange transparent.
    In Evee, Alpha-Hased would look ok, but if you make a sneak peak or you publish
    it has these white edges.

    Any help is appriciated.. maybe alpha-hashed is buggy?

    Greets Tom

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    2024-02-21 at 2:37 pm #70889
    kdv
    Participant
    tomtm wrote:

    As you can see, the Alpha-Blend mode is some kind of strange transparent.

    Nope. Looks exactly like in Blender. See no difference at all. And no issues.

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    Puzzles and JS coding. Fast and expensive.

    If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

    2024-02-21 at 2:59 pm #70892
    tomtm
    Participant
    kdv wrote:
    tomtm wrote:

    As you can see, the Alpha-Blend mode is some kind of strange transparent.

    Nope. Looks exactly like in Blender. See no difference at all. And no issues.

    Yes, alpha blend looks in both more less same, but not ideal for hair cards.
    Alpha-Hased would look much better like it’s displayed in Evee , in Verge it looks wrong.

    Image 3 and 4 are alpha-hased

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    2024-02-21 at 4:38 pm #70899
    kdv
    Participant

    I told you to attach here .blend with the head and hairs as an example. What did you do? You attached that useless image ))) You think that somebody in hurry will start modelling those hair cards to see what’s wrong with them? :unsure:

    Puzzles and JS coding. Fast and expensive.

    If you don’t see the meaning in something it primarily means that you just don’t see it but not the absence of the meaning at all.

    2024-02-21 at 4:49 pm #70900
    tomtm
    Participant
    kdv wrote:

    I told you to attach here .blend with the head and hairs as an example. What did you do? You attached that useless image ))) You think that somebody in hurry will start modelling those hair cards to see what’s wrong with them? :unsure:

    sorry, I thought I did… here it is.
    It must be zipped, that’s why :-)

    • This reply was modified 9 months ago by tomtm.
    • This reply was modified 9 months ago by tomtm.
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