* Fixed an issue with HDRIs not generating proper PMREMs over multiple viewer instances
* WIP on makign the world tree multiple instanced
* The WorldTree is no longer static. Each viewer has it's own instance and it hands it over to whoever needs it.
* Fixed an issue with filtering and the new non-static tree. Also removed the 'root' key from the NodeData structure since it's not needed
* Added an guard when building batches for situations where all render views have invalid geometries. This generally means there is somethign wrong with the stream itself
* multi-viewer css fixes
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Co-authored-by: Dimitrie Stefanescu <didimitrie@gmail.com>
Alexandru Popovici
4aef572a44