The Scene Lab

Opening a shot

Double-click a 3D block on the timeline and the Scene Lab opens on that shot. Editor in the top bar takes you back. Blender doesn't need to be open: you work on Swiftbird's view of the scene, and nothing in your Blender file changes until your agent builds what you asked for.

What you can do

• Move, rotate, scale. Put things where they should be instead of describing where.
• Draw blocks. Block out a new object and name what it should become.
• Camera paths. Straight, curved or orbiting moves, colour-coded per cut and previewed in place.
• Ruler. Measure between objects, so "closer" becomes a number.
• Notes in space. Pin a note to an object or a frame.

Proposal, then build

Your changes don't touch Blender directly. Send to agent gathers them into one precise proposal ("3 changes proposed") and hands it to your agent, which builds them in Blender.

When the build comes back, Split shows the proposal beside the built shot, so you can compare the result with what you asked for, then keep it or ask again.

One timeline

The Scene Lab shares Chat, proposals and the timeline with the rest of the editor: a change made here shows up on that 3D block's clip.

What you need

Blender installed on your PC for the build step, and a Claude Code or Codex agent that can drive it. Swiftbird doesn't render 3D itself; Blender does.