Describe the bug

1.Cave Sky
Watch the video and you'll notice that the sky turns dark when you're inside a cave, by adjusting the options in the settings regarding cave mode doesn't work.

2.Cave Shadow
Watch the video and you will see that inside this cave, all the shadows are displayed in a strange way that looks like a mosaic.

3.DH Highlight Reflection
Watch the video, when DH is loaded with “Highlight Reflections” turned on, the reflections in the part of the DH rendering get weird, there should be a better solution to deal with this part instead of rigidly dividing the two!

I use the "spbr" texture package. Other DH-supported lighting and shadowing tools (such as photon) handle the highlight reflections at the joints better.

for the cave fog issue:
you are not toggling the setting to turn it on or off. that is in shader settings -> fog settings -> cave fog
cave fog intentionally blacks out the sky so you dont see it when in caves.

for the blocky shadows issue:
that is also intentional. its part of how i prevent sunlight from leaking on walls in caves, its very hacky but its better than no shadows at all

for the sun reflection on distant horizons:
that is not supposed to happen at all. i will look into fixing that

for the blocky shadows issue:
that is also intentional. its part of how i prevent sunlight from leaking on walls in caves, its very hacky but its better than no shadows at all

Is it possible to provide an option for players to turn off "blocky shadows"?

should be an old lightleak fix option in shader settings -> direct light
not sure if it still functions

Regarding the sun reflection on distant horizons, here's a new video to show the severity of the problem, I turned on highlight reflections, screen space reflections, and fog reflections, and this is how DH behaves.

You can see that the terrain becomes like a mirror, and the light source in the near distance seems to be extended indefinitely by the mountain, a very strange performance.

should be an old lightleak fix option in shader settings -> direct light not sure if it still functions

This option doesn't work, hopefully an additional option will be provided to fix this issue.

like i said, its not an issue. its intentional

the other major issue with reflections on DH, i honestly have no idea how thats happening. the LOD's have no reflection controls so it shouldnt be able to even get shiny in the first place