Procedural Compositing with Batch > Batch Processing >

# Assembling a Process Tree

Use Batch to assemble a series of tasks using nodes. Each node represents a specific Smoke function. You connect clips with nodes and use the result of one node as the source for the next node. As you assemble this arrangement in the Batch schematic, you are building a process tree that processes as many output clips as you want. Intermediate clips can be processed as well.

A process tree begins with a clip, contains at least one node, and ends with a BFX Output node. The following example shows a simple process tree that performs a colour correction using a front, back, and matte clip.

Images courtesy of The Post Group

Workflow: To build a process tree:

1. In the Batch menu, select BatchSchm from the View box.
2. Add the clips and nodes to the schematic. See Adding Clips to the Schematic, and Adding Nodes to the Schematic.
3. Connect the clips and nodes in the required sequence for your effect. See Connecting Nodes, and Working with Multiple Connections.
4. Modify the clips and nodes, as needed, to adjust effect parameters, trim segments, apply LUTs, and adjust audio, for example. See Modifying Clips in Batch.
5. Connect a node to a BFX Output node.

   Before you can process, a process tree must end with a BFX Output node. Batch uses these nodes to process the result of the process tree to the corresponding timeline segment. See BFX Output Node, and Processing Batch Results.

6. Preview your process tree, and then click Process.

   The final clip is stored on the EditDesk. See Previewing Results and Processing Batch Results.

#### Topics in this section

- Adding Clips to the Schematic
- Modifying Clips in Batch
- Adding Nodes to the Schematic
- Connecting Nodes
- Working with Multiple Connections