Vulkan: LightmapGI does not react to non-default environment Color, Energy or Sky Contribution when using the Scene environment mode

[Calinou]

Related to https://github.com/godotengine/godot/issues/56078 (which is the same issue but for 3.x's CPU lightmapper).

Godot version

4.0.dev (489f11ee0)

System information

Fedora 34, GeForce GTX 1080 (NVIDIA 470.74)

Issue description

The GPU lightmapper does not react to non-default environment Color, Energy or Sky Contribution in WorldEnvironment when the BakedLightmap is configured to use the Scene environment mode. I made sure to bake lightmaps again after changing the Environment's ambient light properties. The GPU lightmapper does not react to custom sky rotation either: https://github.com/godotengine/godot/issues/56135

Left: real-time ambient lighting, right: baked ambient lighting

Default environment settings

Ambient Color #000000, Sky Contribution = 0.5, Energy = 1.0

Ambient Color #604020, Sky Contribution = 0.0, Energy = 1.0

Steps to reproduce

• Add a WorldEnvironment node. Configure a ProceduralSky.
• Add a LightmapGI node. Set the environment mode to Scene.
• Instance two identical 3D scenes imported with the Static Lightmaps option. Right-click one of them in the Scene tree dock then enable Editable Children. Select its child mesh and set Global Illumination > Mode to Disabled, so that it is not included in baking.
• Select the BakedLightmap node and click Bake Lightmaps at the top of the 3D editor viewport.
• Remember to bake lightmaps every time you adjust the ambient light settings!

Minimal reproduction project

test_lightmap_environment_master.zip

[tbillington]

This seems to be broken in godot 4.1 (haven't tested any other versions). Hope this is the same issue. If not do you have a suggestion of where I can report this?

LightmapGI Disabled

LightmapGI Enabled and clicked Bake Lightmaps

LightmapGI Settings

[AThousandShips]

Please open a new report as this issue was fixed so not the same issue