Fix Isaac RTX Visualizer perspective camera only seeing env_0

[rilei-nvidia]

Description

Fix Isaac RTX Visualizer perspective camera only seeing env_0

Set rtx.scenePartitioning.showAllPartitionsByDefault=true in the rendering app so the perspective camera shows all environments by default when RTX scene partitioning is active.

Also return early in KitVisualizer when _resolved_visible_env_ids is None (spectator mode) to prevent incorrectly writing an omni:scenePartition attribute on the camera prim that would lock it to env_0.

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)

Screenshots

Before	After
gif/png before	gif/png after

Checklist

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