Run the GSplats dispatcher in-process against backend, deriving the discrete / extend_to_all dim sets from the view state exactly as the data-processor does, and mapping to ProcessedGSplatsData.
backend
ProcessedGSplatsData
Run the GSplats dispatcher in-process against
backend, deriving the discrete / extend_to_all dim sets from the view state exactly as the data-processor does, and mapping toProcessedGSplatsData.