Editing Openai/696480e2-8c90-8013-9d6f-6ccbd15d2db6 (section)

=== Assistant: Occlusion Distance is a light cutoff range — it tells Blender how far a light is allowed to affect objects. ===
Occlusion Distance is a light cutoff range — it tells Blender how far a light is allowed to affect objects.

If an object is farther than this distance, the light does nothing to it, even if the light is strong.

==== Think of it like this: ====

: 

So if:
* Your light is 50 m away
* Occlusion Distance = 10 m ➡️ No lighting appears at all

This makes it look like lights are broken, when they’re actually just limited.

==== - Eevee only (Cycles ignores it) ====
* Applies to Point, Spot, and Area lights
* Often defaults to 0 (disabled) — but if it’s been set accidentally, it can break lighting

==== 1. Select the light ====
# Go to Light Properties (💡 icon)
# Scroll down to Eevee
# Find Occlusion Distance

You’ll see:
* 0.00 m → disabled (good for testing)
* Any positive number → cutoff range

==== For testing: ====
* Set Occlusion Distance = 0

For real scenes:
* Small room: 10–30 m
* Large scene: 100–500 m

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==== If: ====
* New lights don’t render
* Scale is correct
* View Layer is correct
* Engine is Eevee

Then Occlusion Distance ≠ 0 is one of the last remaining causes.

==== 1. Select your Point Light ====
# Set Occlusion Distance = 0
# Press F12

If the light suddenly works — that was the issue.

If it still doesn’t, the next thing to check is camera clipping or material overrides, and we can do that step-by-step too.