Vibrant Visuals / Global Lighting / Sun illuminance control range does not match engine values

[Imagenum]

Repro steps

1. Open the Vibrant Visuals panel, Global lighting tab, in the Bedrock Editor.
2. Look at the sun illuminance control and its value.
3. Compare against vanilla resource_pack/lighting/global.json (minecraft:default_lighting), where the sun's daytime illuminance keyframe is 100.0, stepping down through 1.0, 0.01, 0.0 across the dusk transition.

4.Observe the editor's control does not represent or round-trip that value: the displayed/applied sun illuminance does not correspond to the lux value the engine and the JSON use. All values between 0-100 in illuminance are squished on the bottom of the graph since this field expects values 0-100000 ( lux) where in my opinion it should be something between 0-200 max .

Observed result vs. what you actually expected to happen

Observed: the Global lighting tab maps the sun illuminance value onto a range/scale that does not match the engine's lux scale. Values authored or imported at the vanilla range cannot be represented or are remapped, so what the editor shows and applies for sun illuminance diverges from what the same value produces in game and in the saved JSON.

Expected: the sun illuminance control should accept and round-trip the full lux range the engine uses. Vanilla deferred lighting files set the sun's daytime illuminance to 100, with documented dawn/dusk transition steps down to 1.0 and 0.01. From testing, the usable range is roughly 0.1 to 100. The editor value should be 1:1 with the JSON value across that range.

Evidence (vanilla source, preview branch): Mojang/bedrock-samples/resource_pack/lighting/global.json, desert_lighting.json, end_lighting.json all use a 100.0 sun daytime illuminance peak.

Other helpful info

Preview build version: 26.40.26 (Bedrock Editor 26.40.26, Windows build 46393405)

Frequency: Always

Local single-player, peer-to-peer, dedicated server: Local single-player (Editor)

Graphics card: NVIDIA RTX 4090 (DX12)

Device info: Desktop, Windows 11 Pro, Intel i9-13900KF