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Banding artifacts despite enabling dithering (Blender & Verge3D)

Home › Forums › General Questions › Banding artifacts despite enabling dithering (Blender & Verge3D)

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  • 2024-06-28 at 3:51 pm #75657
    adamabr
    Customer

    Hi!

    I am encountering banding artifacts despite enabling dithering. The dithering happens in the world material and looks like the attached image. I have enabled dithering in the world settings.

    The material setup is also attached.

    I have read that some have mitigated banding by enabling HDR rendering. It is enabled in my case and still yields the banding artifacts.

    Any ideas on how to mitigate this?

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    2024-06-28 at 5:30 pm #75665
    xeon
    Customer

    Any chance you can provide a simple project with just that background in it?

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

    2024-06-29 at 7:35 am #75673
    visualizer
    Customer

    Did you choose right options under blender Blend mode & shadow mode?
    Also under Verge 3D settings?

    2024-06-29 at 5:48 pm #75680
    adamabr
    Customer

    Xeon: Here is a simple project that has the background and dithering as well as HDRI rendering enabled. Project file (Dropbox)

    Visualizer: Are you referring to material properties? Can’t find that for the world shader specifically.

    2024-06-29 at 6:08 pm #75682
    xeon
    Customer

    Hi Adamabr,

    I have taken a look at the project and it appears the be the source image that is causing the problem. It has the gradient banding already in the image as default. You can take the image into your favorite image editor and boost the brighness and contrast to really see where the issues are in the image.

    You can solve this using your photo editor and smoothing out the colors or finding an image with less banding.

    You can also see this in Blenders Viewport by turning off the Light Path going into the Mix Node and looking in the positive Z direction.

    I think you will be pleased once you smooth those banding artifacts in the image.

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

    2024-06-29 at 6:36 pm #75684
    adamabr
    Customer

    Thanks for looking at it Xeon! Though I find that odd. Why would the source image’s banding have anything to do with the gradient texture? What’s shown should only be the gradient texture.

    As a proof one can completely remove the HDRI image and just use the gradient in the background shader. Same banding happens. That makes me think this is independent of the HDRI used.

    What do you think?

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    2024-06-29 at 7:26 pm #75686
    kdv
    Participant

    That’s how the Gradient texture node works now and worked before :unsure: You should understand that not all nodes are completely supported and sometimes the results in Blender and Verge differ. Just find some other variant for you background.

    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.

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