SDFGI Skylight Won't Respect Camera Attribute Exposure

[WickedInsignia]

Godot version

4.0 Stable

System information

Windows 11, Nvidia RTX4070ti, AMD Ryzen7700x

Issue description

SDFGI will not respect exposure regarding skylight influence.
When adjusting exposure via Camera Attributes, SDFGI lighting will adjust to the same average amount upon movement of the viewport.
This happens regardless of arbitrary or physical light units, and occurs with all exposure settings in both types of Camera Attributes.
This also happens when adjusting the brightness of the skylight via any setting in the Environment node.
Here are various ISO exposures in a scene using physical light units:

Steps to reproduce

Load MPR, adjust ISO and then move the viewport. SDFGI should update to the same average brightness regardless of exposure.

Minimal reproduction project

SDFGI Sky Exposure.zip

[Calinou]

• Related to Vulkan: SDFGI does not take custom ambient light settings into account when Read Sky Light is enabled (unlike VoxelGI) #55104 and Vulkan: SDFGI does not obey custom Sky Rotation values #62793.

[Jamsers]

Ran into this issue in Bistro-Demo-Tweaked. Here's another MRP for testing: SDFGI-exposure.zip

SDFGI-exposure.mp4