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HDRP StackLit shader - Coat reflections "pop in" at Coat Smoothness values of 0.9

Discussion in 'High Definition Render Pipeline' started by ChezDoodles, Mar 6, 2021.

  1. ChezDoodles

    ChezDoodles

    Joined:
    Sep 13, 2007
    Posts:
    106
    Hi

    Experimenting with the HDRP StackLit shader for Clear Coat effect.

    However, the clear coat reflections seems to suddenly "pop in" with Coat Smoothness values above 0.9.

    See attached image - going from 0.89 to 0.9 makes a lot of difference. I would like to have a smooth transition. Is it possible?

    I understand that screen space reflections are expensive - but is it possible to have them at lower Coat Smoothness values, where they would contribute less to the final output. At lower Coat Smoothness values, I seem to get a generic reflection.
     

    Attached Files:

  2. jsr2k1

    jsr2k1

    Joined:
    Aug 11, 2010
    Posts:
    98
    Hello,

    I've seen the same problem with the HDRP/Lit shader. No reflection at all until the Smoothness value is set to 0.9 or higher. Is this a known issue?
     
  3. jsr2k1

    jsr2k1

    Joined:
    Aug 11, 2010
    Posts:
    98
    I've found that I need to add the 'Screen Space Reflection' override to the Post Process Volume and set a lower value for 'Minimum Smoothness'. Hope this helps.
     

    Attached Files:

    chap-unity likes this.