Batch processing objects with Geometry Nodes

Now that we have repeat zones, it doesnt seem impossible to have a node that selects Objects based on certain filter criteria and iterates over them within Geometry Nodes.

This could open the door to many new Usecases.

• batch processing .blend files with geometry nodes
• filtering out all curves or meshes of a collection to use with object-type specific nodes
• filter by material to provide all objects with a certain shader the required custom data
• perhaps an "Export Object" node like in Gaea would be useful for batch exporting Objects
• similar workflows like Unreals new PCG system