Requires Iris Shaders (recommended for performance) or Optifine .
You must use a compatible PBR Resource Pack (like LabPBR) to see the full "raytraced" effect on textures. Vanilla Raytracing for Java! (Support 3D Models)
The support for volumetric fog and light shafts (god rays) significantly enhances the "mood" of vanilla Minecraft. Vanilla Raytracing for Java! (Support 3D Models)