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Is this amount of TAA ghosting on a skinned renderer expected?

Discussion in 'High Definition Render Pipeline' started by PutridEx, May 11, 2022.

  1. PutridEx

    PutridEx

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    I don't think you have the ghosting improvement patch in this video, since there's no "jitter" paramater which was added along with it (which is great.. can mix reduced TAA with MSAA now, TAA for specular aliasing, MSSA for geo) also the patch doesn't have anything to do with speed rejection from my understanding, it should be a general improvement even when speed rejection is at 0
    It is in latest 2021 LTS though

    unless maybe you have it but you have additional properties hidden and what's why it's not showing up
     
  2. Rowlan

    Rowlan

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    It's a hidden parameter and was set to 1. In my case I definitely needed to change the speed rejection. I made another, now with the hidden parameter visible and changed:



    However, now with the black pattern gone you still see other artifacts around it. Not sure if that's the way it should be.
     
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  3. PutridEx

    PutridEx

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    that's a good challenging test for TAA
    I think this is a tough area for Temporal anti aliasing in general, really fast movement like that. Sort of what speed rejection was made for I guess..
    my issue with speed rejection is it can cause popping and other issues depending on your environment, so you might enable it for some characters and it'll work for them, but could cause issues to your environment. Since you can't just enable it for a certain object.

    I guess the perfect solution for this would be a way to tell TAA to ignore certain objects.
    But then you'd lose the anti-aliasing for that object, so maybe not so perfect? :D
    I'd say it would be a good trade/option though, for sure.

    I wonder how your video would look before the patch in this thread

    edit: also you're running in free aspect res, could be better with higher res
     
  4. newguy123

    newguy123

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    I had to watch and rewatch your vid a couple of times. I'll just take your word for it that it's better now, because I cant see a difference between 0 and 1 speed rejection......
     
  5. newguy123

    newguy123

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    Ah, with this one the difference is more obvious
     
  6. francescoc_unity

    francescoc_unity

    Unity Technologies

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    Note that indeed the improvements are overall and not related to speed rejection only :)

    That said, that bee is the perfect use case for that; it is an extremely challenging case otherwise :D
     
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  7. Rowlan

    Rowlan

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    If you need it, it's the Bee.glb that comes with the windows 3d viewer, you probably already have it on your disk :D
     
  8. EgemenJP

    EgemenJP

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    Thank you so much! This was one of the bigger issues with hdrp bugging me for a while
     
  9. Enigma229

    Enigma229

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    So those of us still using 2020.3x what are our options? Motion Blur looks like crap even with TAA not turned on (getting smears using SMAA).