A Batch effect (FX) is a setup applied directly to one or more segments on the Batch timeline. Batch FX include effects of any module accessed from the Batch node bin. Creating a Batch FX allows you to take a selection of timeline segments into a Batch flow graph environment for procedural compositing. When you create a Batch FX, you perform procedural compositing yet remain in a timeline-based environment. You can edit and reorder any Batch FX node without affecting anything else in your pipeline.
Each time you create a Batch FX, you enter a new setup for the selected segments. Segments can, therefore, have several levels of nested effects. The BFX View allows you to access a schematic hierarchy of all levels of nested Batch FX and their sources relative to the main Batch timeline. Alternatively, expand Batch setups to bring the setups nested inside a clip back to the same BFX level.
Although you can create soft effects on the Batch timeline, you have access to fewer effects modules with soft effects than with Batch FX. As well, you can apply soft effects to only one segment and their order in the pipeline is fixed. Creating soft effects is useful when you want to remain on the timeline and do not need to work in a modular pipeline environment. If you started with soft effects but later decide you need the flexibility of the Batch pipeline, you can convert the soft effects to nodes.