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Ray Traced Shadows

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adamrice117 polycounter lvl 4

Hello, I'm watching an excellent tutorial on lighting by William Faucher here: https://www.youtube.com/watch?v=fSbBsXbjxPo

I'm wondering why in my Directional Light Details, the Cast Ray Traced Shadows is greyed out. All of my Project Settings are set correctly and I have a Geforce GTX 1080ti which supports ray tracing; it appears the shadows are quite soft and ray tracing is working. But I'm curious why this setting is greyed out and I can't Enable or Disable it as I please.

Any thoughts?


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