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Hierarchical Shadow

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  • 2024-10-08 at 4:36 pm #77861
    安娜
    Participant

    Hello
    I am a user of 3ds Max version. After repeated testing, I found that the parameters set for the “Cascade Margin” hierarchical shadow do not work, and the final effect remains unchanged regardless of whether it is set for short or long distances. I hope the official can verify it

    2024-10-09 at 9:20 pm #77878
    Nurgeldi Dovletov
    Staff

    Hi 安娜!

    Cascade Margin is used only to get rid of artifacts (it happens mostly with objects with stretched or simply large polygons, for example in tall objects). If you set a large value, the speed and quality of the shadows will decrease a bit due to the accuracy of the depth buffer (floating-point precision) rather than the resolution of the shadow map itself.

    If you increase the distance of the light source, it will not have much effect, because Verge3D in 3ds Max automatically calculates the optimal distance depending on the size of the scene when exporting (this was very convenient before the current cascaded shadow maps were introduced).

    You may not notice the effects of adjusting the Cascade Margin because the optimal light distance is automatically calculated to minimize shadow issues. However, sometimes this can compromise shadow quality as a trade-off.

    We will probably change this soon to give users more control over shadow optimization in 3ds Max.

    Verge3D Developer

    2024-10-12 at 12:18 pm #77934
    安娜
    Participant

    hi Nurgeldi Dovletov
    Thank you for your attention and reply. Wishing you a happy life!

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