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Question Reflection Probe Flickers When Camera Moves

Discussion in 'High Definition Render Pipeline' started by mikeohc, Oct 7, 2021.

  1. mikeohc

    mikeohc

    Joined:
    Jul 1, 2020
    Posts:
    215
    I have this issue where reflection probe just flickers in some areas when the camera is at a certain angle.
    ezgif-2-a326237b6009.gif

    Any idea what the cause of this issue is?
     
  2. mikeohc

    mikeohc

    Joined:
    Jul 1, 2020
    Posts:
    215
    The popping is occurring more and more frequent when new reflection probes are added.

    Anyone experienced this?
     
  3. mikeohc

    mikeohc

    Joined:
    Jul 1, 2020
    Posts:
    215
    Turning down the Reflection Lighting Multiplier discards gets rid of the sky reflection and any other reflection light.

    ezgif-2-ba549c27bca2.gif

    I'm thinking maybe this issue has something to do with materials falling back to sky reflection? But why would it fall back to sky reflection when there is a reflection probe baked?
     
  4. mikeohc

    mikeohc

    Joined:
    Jul 1, 2020
    Posts:
    215
    Even in build this issue persists. It seems like it depends on something from the camera, and Unity selects certain probes to disable causing materials to fall back to sky lighting... I cannot find any fix...
    ezgif-2-6bde66c5ee17.gif
     
  5. Ruchir

    Ruchir

    Joined:
    May 26, 2015
    Posts:
    934
    This issue generally appears when no. of lights/reflection probes affecting a tile exceed 24 (currently)

    You can check this using the debug view in HDRP
     
    mikeohc likes this.
  6. Willemvd

    Willemvd

    Joined:
    Mar 19, 2014
    Posts:
    8
    Happens to me with 1 reflection probe