Renderer: Fix light invalidation by nested render calls.#33737
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📦 Bundle sizeFull ESM build, minified and gzipped.
🌳 Bundle size after tree-shakingMinimal build including a renderer, camera, empty scene, and dependencies.
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This was referenced Jun 12, 2026
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Fixed #33730.
Description
The PR makes sure nested renderings do not invalidate the lights array that holds the lights of the scene. That can happen when the same scene is rendered with a camera that uses a different layers configuration. The nested pass will mutate the same shared lights array and never restore it.
Maintaining a simple stack mechanism in
Lighting.jsfixes that issue.