I'm using rock props and details on displacements in the skybox in several maps, and I've always had odd lightning with them - rocks are lit by ambient lighting from beneath very strongly, and displacements are nearly pitch black when facing away from the sun cast direction (I have tree materials on displacements).
I've tried nodrawing the bottom face of the skybox to no avail, as well as putting a blocklight brush under the map in the skybox, yet prop lightning doesn't seem to change at all. I can't think of any way that I might fix the displacement lighting either, short of using ghost omnilights/spotlights - is there any better way?
Edit:
I've fixed the displacement lighting by turning them into propper models and setting 'ignore surface normals' - ambient lighting on the rocks is an issue still, though
I've tried nodrawing the bottom face of the skybox to no avail, as well as putting a blocklight brush under the map in the skybox, yet prop lightning doesn't seem to change at all. I can't think of any way that I might fix the displacement lighting either, short of using ghost omnilights/spotlights - is there any better way?
Edit:
I've fixed the displacement lighting by turning them into propper models and setting 'ignore surface normals' - ambient lighting on the rocks is an issue still, though
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