scene: host handles a lost GL context (ground on loss, rebuild on restore) #44
2026-11-09
scene: pin the host's restore-listener removal and stale-loss guard; fix preventDefault comment
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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
scene: host handles a lost GL context (drop to ground, rebuild on restore)
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host.ts passes onContextLost to the scene; on loss it disposes the dead scene and calls onInactive (BackgroundScene removes data-scene so the CSS ground shows). A webglcontextrestored listener on the canvas starts a fresh scene; it is removed on dispose, and a stale start is dropped by generation. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>