Vulkan: SDFGI does not obey custom Sky Rotation values

[Calinou]

• Related to Vulkan: SDFGI does not take custom ambient light settings into account when Read Sky Light is enabled (unlike VoxelGI) #55104.

Godot version

4.0.alpha11

System information

Fedora 36, GeForce GTX 1080 (NVIDIA 510.68.02)

Issue description

SDFGI does not obey custom Sky Rotation values specified in WorldEnvironment. Here, the green light should be coming from the left, but it's actually coming from the top (the default sky orientation):

In contrast, VoxelGI obeys custom sky rotation, and so does environment lighting without any GI:

VoxelGI

No GI

Steps to reproduce

• Add a DirectionalLight3D node then hide it. This disables the preview sun in the editor, making the issue easier to notice.
• Add a MeshInstance3D node and load a mesh resource.
• Rotate the sky in the Environment resource.
• Enable SDFGI in the Environment resource.
• Notice how lighting comes from the original direction.

Minimal reproduction project

test_sdfgi_sky_rotation.zip