Opening the Output Manager
Go to Output → Output Manager in the menu bar. The interface opens in a dedicated browser popup window (900×600, centered on screen). The window has three areas:| Area | Description |
|---|---|
| Preview (left) | Live canvas showing the selected target with slices applied. Tabs switch between Input and Output views. |
| Sidebar (right) | List of output targets with nested slices, source selectors, and enable/disable controls. |
| Footer | Zoom level indicator and Save & Exit button. |
Multi-window output
You can open as many output windows as you need. Each window is an independent render target with its own source and configuration. Opening an additional output window:Add a new output
Click + Output in the sidebar header. A new browser popup window opens and appears as an entry in the target list.
Choose a source
Use the source dropdown on the new target entry to pick Active Comp, a specific saved composition, or a slot.
Position the window
Drag the output window to the target monitor. It renders at full resolution independent of the main editor window.
Window state
| State | Appearance in sidebar |
|---|---|
| Open | Active window with live rendering, green status dot |
| Closed | Grayed-out entry with Restore and Remove buttons |
| Restored | Reopens at the previous position and size |
Source routing
Each output target has an independent source dropdown:| Source option | What it renders |
|---|---|
| Active Comp | Follows whichever composition is currently open in the timeline editor |
| Specific composition | Renders a named composition regardless of what is open in the editor |
| Slot | Renders a slot from the 12×4 slot grid |
Corner pin warping
Corner pin warping lets you stretch an output region to match an irregular physical surface, such as a screen that is not perfectly rectangular or a projection surface at an angle. Each slice has four draggable corner handles in the Output tab of the preview area. Drag any corner to reshape the output quadrilateral. Corners are unclamped — you can drag them outside the canvas bounds to achieve extreme perspective corrections. To match the output shape back to the input shape (reset warping), right-click in the Output tab and select Match Output to Input Shape.Slice masks
Slices define a region of the source to display, then map it to a warped output shape. Each slice has:- Input corners — four points in normalized 0–1 coordinates defining which sub-region of the source is used
- Output warp — either a corner pin (four free corners) or a mesh grid for finer control
| Mode | Behavior |
|---|---|
| Inverted (default) | Pixels inside the mask quad are transparent (cut a hole) |
| Normal | Pixels outside the mask quad are transparent (keep only the region) |
Managing slices and masks
Add a slice
Select a target in the sidebar, then click + Slice in the sidebar header.
Add a mask
Select a target, then click + Mask to add a mask layer.
Reorder
Drag the handle on any slice or mask entry to reorder them.
Rename
Double-click a slice name to edit it inline.
Navigating the preview
| Action | How |
|---|---|
| Zoom | Scroll wheel (0.25×–5×, centered on cursor) |
| Pan | Middle mouse button drag |
| Reset | Double-click to reset zoom and pan |
Persistence
Slice configurations are saved automatically on every change (debounced 500 ms) using the localStorage keyOutputmanager_{ProjectName}. What gets saved:
| Data | Storage |
|---|---|
| Slice configurations (inputCorners, warp, masks, inverted mode) | localStorage per project |
| Target metadata (name, source, window geometry, fullscreen state) | localStorage per project |