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Using HDRI as background cant get rid of distortion

Home › Forums › General Questions › Using HDRI as background cant get rid of distortion

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  • 2023-05-14 at 7:00 pm #63768
    3dcgi
    Customer

    Hello
    I’m trying to using a HDRI as background, but I can’t get rid of the distortion
    I’m using the OSL HDRI environment node, added a HDRI from polyhaven (2K) and trying to adjust the image using ground projection to get it set up
    Anyone here who has a solution for that?

    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-14 at 7:30 pm #63769
    xeon
    Customer

    Try using an environment background node

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

    2023-05-15 at 8:07 pm #63780
    3dcgi
    Customer
    xeon wrote:

    Try using an environment background node

    Is this inside the puzzles?
    I’m new to Verge3d and still try to figure it out
    Could you give me some additional help please?

    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-16 at 2:41 pm #63801
    Mikhail Luzyanin
    Staff

    Can you give more information^ what kind of distortion, screenshots, example of HDR map. Better to attach the scene.

    Co-founder and lead graphics specialist at Soft8Soft.

    2023-05-16 at 8:15 pm #63806
    3dcgi
    Customer

    Hi Mikhail
    i just created a new test scene, using the same config as on the large one, who gives me the error
    I did that instead of uploading 130MB
    please download the scene here
    https://3dcgi.studio/temp/environment_test.zip

    Now I have this brown floor in there too and have no idea where it comes from – see attachment

    What am I doing wrong here?

    • This reply was modified 11 months, 2 weeks ago by 3dcgi.
    • This reply was modified 11 months, 2 weeks ago by 3dcgi.
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    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-16 at 11:12 pm #63809
    xeon
    Customer

    You aren’t doing anything wrong but the image you are using is pixelated.
    Just keep in mind that its an equirectangular image that is being wrapped to the environment.
    To get an idea of the quality of your HRDR image open it up in an image editor and zoom in to the level you see in 3D space and you will see how the image you have started to break down.
    The image in your 3D view looks exactly like the image when scaled to match.

    Interested to know if someone at Soft8Soft has a way increasing the distance of the environmental maps to allow us to adjust their size

    • This reply was modified 11 months, 2 weeks ago by xeon.

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

    2023-05-17 at 12:07 am #63811
    3dcgi
    Customer

    Hi Xeon
    the image is pixelated as it is only a 2k HDRI
    Didn’t want to use a 16k as it will only add to the download size
    My problems are with the distortion when I use the HDRI as a background – see screenshot
    I know that it is possible to use HDRI as a background, found a site who they used a HDRI from polyhaven
    Unfortunately, I didn’t bookmark the site and can’t find it anymore in my history
    How would I use this environment node you are talking about?
    Right now I use OSL HDRI environment node inside 3ds max, maybe that’s the wrong way?

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    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-17 at 12:15 am #63813
    3dcgi
    Customer

    found the link
    https://www.dongfeng-nissan.com.cn/activity/car/qashqai
    this one is made with the HDRI from polyhaven
    and here another one
    https://www.dongfeng-nissan.com.cn/activity/car/altima
    not sure if that is also a HDRI from polyhaven
    Although it is not 100% it is much better then the results I got

    • This reply was modified 11 months, 2 weeks ago by 3dcgi.

    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-17 at 4:29 am #63817
    kdv
    Participant

    In both cases they use 4096×2048 equirectangular map in .jpg. And they apply those textures to a big semi-sphere (with a flat base).

    Something like this

    The same approach is used in the Firstperson Camera demo

    Puzzles and JS. 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 meaning at all.

    2023-05-17 at 12:50 pm #63830
    Alexander Kovelenov
    Staff

    Hi,
    unfortunately the “Ground Projection” feature is not supported for HDRI Environment textures at the moment. This feature is in our TODO list though. As suggested above, you might need to create a “Dome” by using a regular textured mesh.

    Soft8Soft Tech Chief
    X | FB | LinkedIn

    2023-05-17 at 2:21 pm #63831
    3dcgi
    Customer
    kdv wrote:

    In both cases they use 4096×2048 equirectangular map in .jpg. And they apply those textures to a big semi-sphere (with a flat base).

    Something like this

    The same approach is used in the Firstperson Camera demo

    Thats a great info, thanks for your help.

    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

    2023-05-17 at 2:23 pm #63832
    3dcgi
    Customer
    Alexander Kovelenov wrote:

    Hi,
    unfortunately the “Ground Projection” feature is not supported for HDRI Environment textures at the moment. This feature is in our TODO list though. As suggested above, you might need to create a “Dome” by using a regular textured mesh.

    Thanks for clearing that up. I will use KDV’s advice until ground projection is supported

    Senior CGI Artist @ 3DCGI.Studio #zerophotography
    ➤ Unreal Engine - 3ds max V-Ray
    ➤ Hyper-realistic 3D. Cars, Motorcycles, Products, Archviz Visualizations, 3D & VFX Animations

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