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HDR Raytraced Refelctions

Discussion in 'HDRP Ray Tracing' started by fra3point, Sep 10, 2020.

  1. fra3point

    fra3point

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    Hello, everyone!

    In these days I'm experimenting the Raytracing system, but I can't get HDR raytraced reflections... Is this a known limitation of the system or am I missing something?

    Look at the following screenshot: as you can see the headlights are very emissive, but the reflections aren't bright at all.

    upload_2020-9-10_9-53-26.png

    Planar reflections (mirrors) seem to have the same issue, but only if RayTracing is enabled in Screen Space Reflection:

    upload_2020-9-10_10-1-28.png

    I'm on a Nvidia GeForce 1080, maybe it's just the raytracing fallback for non-RTX cards?
    Did anyone succeded to get HDR raytraced reflection?


    Edit: the option Clamp can be used to allow pre-exposed colors to be reflected, but it is limited to 10. In my case, it wasn't enough...


    Thanks,
    Francesco
     
    Last edited: Sep 10, 2020
  2. Lex4art

    Lex4art

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    Probably the best way is to use actual light source - area or spot light - it should have unclamped highlight range.
    Upd: sorry for messy reply, it was about "if you're using emissive textures as the light sources it will be better to use actual light's instead because texture lighting range is clamped".
     
    Last edited: Sep 12, 2020
    fra3point likes this.
  3. fra3point

    fra3point

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    Thanks for the answer!
     
  4. auzaiffe

    auzaiffe

    Unity Technologies

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    stuksgens and fra3point like this.
  5. fra3point

    fra3point

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    Thank you, this is a solid solution!

    Francesco
     
  6. spiegelball

    spiegelball

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    For me the "Clamp Value" resets itself now and then to the default value. Did anybody else experience this?
     
  7. Lex4art

    Lex4art

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    Yeah, not only this but some other settings in Global Illumination/Reflections settings. It was fixed in latest HDRP 11.x master branch on GitHub (for Unity 2021.1alpha 7), for 2020.2b I guess it will be fixed in HDRP 10.3 Release version or something.
     
  8. newguy123

    newguy123

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    try re-importing all the raytrace scripts...
     
  9. rz_0lento

    rz_0lento

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    In short: Raytracing isn't supported with DOTS Hybrid Rendering.
     
  10. newguy123

    newguy123

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    any idea if it ever will be?
     
  11. rz_0lento

    rz_0lento

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    Lex4art and newguy123 like this.
  12. Cell-i-Zenit

    Cell-i-Zenit

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