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Question Jitter with Freelook Camera?

Discussion in 'Cinemachine' started by AerionXI, Jul 7, 2022.

  1. AerionXI

    AerionXI

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    So what is up with my Cinemachine Jittering like this when I want to smoothly move up and down the terrain?

    Here's what it is doing :



    Here's my FreeLook Settings :



    Any help is absolutely appreciated!

    Thank you!
     
    AerionXI, Jul 7, 2022
    #1

  2. AerionXI

    AerionXI

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    Can someone help me please? Thank you!
     
    AerionXI, Jul 7, 2022
    #2

  3. AerionXI

    AerionXI

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    Do I need to explain better? If so, please let me know! Thanks!
     
    AerionXI, Jul 7, 2022
    #3

  4. Gregoryl

    Gregoryl

    Unity Technologies

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    There is a known issue in Unity Editor whereby the framerate is very unstable when a transform inspector is visible. This is editor-only and the build should be perfectly smooth. Try testing with the inspector panel closed. Do you still have the jitter?
     
    Gregoryl, Jul 8, 2022
    #4

  5. AerionXI

    AerionXI

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    @Gregoryl still getting a little bit of jitter.

     
    AerionXI, Jul 8, 2022
    #5

  6. Gregoryl

    Gregoryl

    Unity Technologies

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    Can you send me the project?
     
    Gregoryl, Jul 8, 2022
    #6

  7. AerionXI

    AerionXI

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    @Gregoryl Well. I would, but it has assets I purchased from the asset store... Envirosky, etc.
     
    AerionXI, Jul 8, 2022
    #7

  8. Gregoryl

    Gregoryl

    Unity Technologies

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    If you can make a simple repro project without those assets, it would be better
     
    Gregoryl, Jul 8, 2022
    #8

  9. AerionXI

    AerionXI

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    AerionXI, Jul 8, 2022
    #9

  10. AerionXI

    AerionXI

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    AerionXI, Jul 8, 2022
    #10

  11. Gregoryl

    Gregoryl

    Unity Technologies

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    Thanks for the project.

    I'm able to see the jitter when the player is moving very fast towards the camera and the terrain is not flat. If you turn off the CnemachineCollider, the jitter goes away, so that is probably the source.

    Thinking about it, I suspect the the problem comes from the fact that the terrain is not a smooth surface - it is tessellated - so when the player is moving quickly it is going over the sharp bumps created by the tessellation, and that makes the camera bump.

    upload_2022-7-9_9-23-16.png

    It's a difficult problem to solve, and I'm not sure it can be solved 100% in this situation, since the CM collider works by doing raycasts, and the raycasts hit the tessellated shape.

    I was able to smooth it out a fair bit by tweaking the collider settings like this:

    upload_2022-7-9_9-25-4.png

    Also, I would recommend enabling Interpolation on your player, it will give better performance:

    upload_2022-7-9_9-26-15.png
     
    Gregoryl, Jul 9, 2022
    #11

  12. AerionXI

    AerionXI

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    @Gregoryl : Thank you for doing that. This is a real problem because I absolutely NEED the camera collider.
     
    AerionXI, Jul 9, 2022
    #12

  13. centaurianmudpig

    centaurianmudpig

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    If the tessellated geometry is the problem try a smoother collider just for the camera where needed to get around it.
     
    centaurianmudpig, Jul 10, 2022
    #13

  14. AerionXI

    AerionXI

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    i do believe the terrain uses the terrain collider.
     
    AerionXI, Jul 10, 2022
    #14

  15. AerionXI

    AerionXI

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    AerionXI, Jul 10, 2022
    #15