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SternFX
Community Expert
SternFXCommunity Expert
Community Expert
December 1, 2023

Flickering shadows on 3D objects

  • December 1, 2023
  • 3 replies
  • 928 views

There's an annoying flickering pehnomena on the shadows when rendering 3D objects with fast camera motion. Even if I rasie the render qaulity to 50, set the Shadow Resolution to Full and shadow softenss to 20 it still shows.
Version 24.2 Build 27
Attach a sample render

    3 replies

    synthetick
    Community Expert
    synthetickCommunity Expert
    Community Expert
    January 22, 2025

    I am having the same issue in AE 25.1.0. Did you ever find any workaround? Did Adobe look into this? I have a 3D model of an office chair rolling through the frame and I have ended up rendering the floor shadows in a separate pass and blurring them significantly to hide the flickering.

    SternFX
    Community Expert
    SternFXCommunity ExpertAuthor
    Community Expert
    December 2, 2023

    Thanks Brian,

     

    I modified the comp based on your suggestions and it had a minor affect on the result. Attahched a link to the second render. Maybe I'm doing something wrong. I'm happy to share with you the project if you want to take a closer look at it.
    https://drive.google.com/file/d/1v8zo2W_dEygj6JrqS0ayV2vMBhFbiGaX/view?usp=sharing

      B
      Community Manager
      Brian C CarterCommunity Manager
      Community Manager
      December 1, 2023

      Hi Eran

      You could also experiment with changing the size of the Casting Box to make sure it's only around the objects you need shadows on. The next thing we suggest is increasing the resolution of the shadows to Double. Please let us know if this helps!

      Brian

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