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Feedback / Transparency

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Viewing 12 posts - 1 through 12 (of 12 total)
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  • 2025-03-19 at 8:13 am #80719
    Philipp
    Customer

    Hey,

    we have done that app recently and wondering how we can fix the transparency issues on the dandelion and bush. the grass is made also with simple planes and has also an issue were the boarder becomes blue. any suggestions here?

    link

    thanks a lot. :bye:

    phil

    2025-03-19 at 9:35 am #80722
    gf3d
    Customer

    Hy there,

    transparency can be an issue…..
    What software did you create the 3D Data with?

    if you work with 3d Max this is what you should check.

    Make sure that the background colour of the Diffuse Image has the about same color as
    what is shown ….with the grass make it green like the grass etc…
    Also make sure thet there is no glossyness in the shader ( Best use the Legacy Shader)….just make the colours of the specular, Diffuse and Ambient channel black and play with the self illumination……
    also check the order of the transparency in the objects or better define the transparency as a mask…
    this works best with simple plane based objects as in your scene

    Greats

    Ger

    2025-03-19 at 9:56 am #80726
    Philipp
    Customer

    thanks for your suggestions! i created it with blender.
    the issue with the grass is solved by eliminating all blues in the texture. :good:

    the grassfield with dandelions is one object which can only have one definition about transparency. i could split it up but it seams to be an issue with orientation of a transparent plane aswell. if you turn the see you will notice that the “dark” transparent planes are not visible form all views.

    my settings:
    object with transparency; blend mode auto, double-sided, depth write, depth test
    Verge3d; FXAA, OIT

    thanks for any suggestions!
    phil

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    2025-03-19 at 10:08 am #80729
    gf3d
    Customer

    hy again,

    just make the blendmode as a mask and put some self ilumination on the material…
    that should do the job…that way its not depemding on ypur light settings…( which explains the different brightness on both sides of your objects….and kill the glossity or whatever its called in blender…..)

    Ceck my site for some samples i work a lot with transparencies…with the coorect settings it really works well

    https://www.gf3d.de/html/vr_01.html

    Greets

    Ger

    2025-03-19 at 10:36 am #80730
    kdv
    Participant
    Philipp wrote:

    depth write

    disable it.

    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.

    2025-03-19 at 11:24 am #80733
    Philipp
    Customer

    thx!
    but then it is almost not visible at all.

    2025-03-19 at 11:27 am #80734
    kdv
    Participant

    that’s an OIT issue…

    it should work this way https://v3d.net/1885

    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.

    2025-03-19 at 11:31 am #80735
    Philipp
    Customer

    strange, your sample looks awesome!

    this is what it looks like if i disable OIT and set AA to auto with depth write off on the objects.

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    2025-03-19 at 11:54 am #80737
    kdv
    Participant

    there is one more issue with new Blender and Verge3D: all materials by default are exported as transparent with opacity 1.0 (Blend Mode Auto).

    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.

    2025-03-19 at 12:00 pm #80738
    Philipp
    Customer

    ok, what is your suggestion?
    im on 4.9 but had this issues also on 4.8
    blender 4.3.2

    thanks a lot for you help!

    cheers phil

    2025-03-19 at 12:03 pm #80739
    kdv
    Participant

    all materials that are not supposed to be transparent should be set to Opaque. and disable “depth write” for all materials that use Alpha blending.

    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.

    2025-03-19 at 1:16 pm #80742
    gf3d
    Customer

    You´ll make it…settings might different in Blender…i´m only familiar with 3DMax….

    I would also suggest to create UV Maps with a beauty pass ( with Shadows and Ambient occlusion….
    If you then make them self illuminating you dont need any light at all…..Looks far better and the loading times are far less even with big scenes as some of my Projects….( beyond 1 million
    polygons) right now i´m working on a projekt with 2,5 millions ploygons ( optimized )
    Loading time on my PC is less then 30 seconds…it worth while creating beauty textures..

    Greets

    Ger

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