How to Enable and Use the Grid in Fusion

Quick answer: on the Fusion page, click the MediaIn node so the new tool lands between it and MediaOut, press Shift+Space, search for Grid and press Return. The working flow should read MediaIn → Grid → MediaOut. You can also drag the tool in from Effects Library > OpenFX > ResolveFX Generate > Grid.

That gives you a visible grid that becomes part of the image. If you only need temporary lines for centering text or checking composition, right-click the Viewer and choose Guides > Show Guides instead. Guides help you line up a shot, and they never render into the export.

Which Grid Do You Mean?

Resolve uses similar names for tools that do very different jobs. Pick by what you want to see in the finished frame.

It comes down to two choices: use Grid when the lines belong in the image, and use Viewer Guides when the lines are only a workspace aid. The Blackmagic Design forum explanation of Grid and Viewer Guides confirms both routes in Fusion.

Add a Grid Node in Fusion

1. Select the clip in the Edit timeline, then open the Fusion page.
2. Check the basic flow. A normal timeline clip starts with MediaIn wired straight to MediaOut.
3. Click the MediaIn node, press Shift+Space, type Grid, pick the Grid tool from the list and press Add.
4. If nothing was selected when you opened the search, Fusion adds the node disconnected. Connect the MediaIn output to the Grid source input, then connect the Grid output to MediaOut.
5. Select the Grid node and open the Inspector to shape the pattern.

The same tool sits in Effects Library > OpenFX > ResolveFX Generate > Grid. Once you know the name, the keyboard search is faster. The library path is handy when you want to be sure you grabbed Grid and not Grid Warp, because typing "grid" in the search can bring up both.

If the node graph still feels unfamiliar, start with the Fusion beginner tutorial. It shows how MediaIn, effects, Merge nodes and MediaOut pass an image through the comp.

Change the Grid Size, Position, Color and Strength

Select the Grid node and work from the controls in its Inspector. In Resolve 21.1 they sit in two groups, General and Line Properties, followed by a set of transform sliders. The useful decisions map to them like this:

• Cell size or density: there's no cell-size slider as such. Row Cells and Column Cells set how many cells the frame is split into, so fewer cells give you a few large divisions and more cells a denser technical pattern. Major Line Spacing draws a thicker line every few cells; set it to 0 to turn that off.
• Position: use Pan and Tilt to slide the grid until a major line crosses the feature you're aligning; Zoom and Rotate sit in the same set. For a centered layout, place the pattern so its central vertical and horizontal lines meet at the frame center.
• Line appearance: Line Color sets the color, and separate sliders handle the horizontal, vertical and major line widths. I'd pick a color that stays readable against the footage. A saturated color usually survives mixed light and dark areas better than white.
• Strength: to make the whole grid quieter, lower Blend on the node's Settings tab; at 0 the image passes through untouched. Keep it strong while you place elements, then judge it again at normal playback size.

Don't tune a dense grid while looking only at a zoomed-in Viewer. A pattern that looks clean at 200% can flicker or turn distracting at delivery size. Check the full frame and a short stretch of playback before you keep it in the design.

Use the Grid Over Footage or as a Background

Grid over footage

For an overlay, the source image has to feed the Grid tool:

MediaIn → Grid → MediaOut

It's the simplest layout for a technical overlay, a map graphic, a screen treatment or a temporary alignment pass you plan to pull out later. The Grid takes the incoming image and draws its lines over that source.

Grid as a background

If you want a standalone grid behind text or graphics, build a canvas first with a Background node:

Background → Grid → Merge → MediaOut

Connect the title or graphic to the Merge foreground and the gridded Background branch to the Merge background. The pattern stays independent from the foreground, so you can adjust or animate either branch without rebuilding the comp.

For a transparent result, decide whether the grid itself should be opaque or carry alpha, then check that the delivery format supports transparency. The transparent video export guide covers the render side.

Why the Grid Node Shows Nothing

The most common failure is an empty source input. Grid draws an overlay on an image, so in this workflow it needs an image or a canvas underneath it. A Blackmagic forum troubleshooting thread about a blank Grid node points to a missing connection to the Source input as the key check.

Work through these checks in order:

1. Confirm the source: MediaIn or a Background node has to feed the Grid source input.
2. Confirm the output: the Grid output has to continue on to MediaOut. A side branch that works will still not appear in the timeline viewer.
3. View the node directly: select Grid and press 1 for the left Fusion Viewer or 2 for the right one. If the grid appears there but not in the final output, the problem is downstream. Press the same number again to clear that viewer.
4. Check the displayed branch: make sure the Viewer is showing the node you think it's showing. Fusion can display an intermediate node while MediaOut receives another path.
5. Check line visibility: switch to a contrasting color and wider lines for a moment. A thin dark grid can disappear over dark footage even when the node works.
6. Check bypass state: make sure the node isn't set to Pass Through. The switch on the node's header in the Inspector turns it off and on, and Command-P (Ctrl-P on Windows) does the same in the Node Editor.

This order separates a connection problem from an appearance problem. Rebuilding the node rarely helps when MediaOut is simply wired to the wrong branch.

Show Viewer Guides Without Rendering a Grid

Right-click inside a Fusion Viewer, open Guides and choose Show Guides, or press Command-G (Ctrl-G on Windows). The same submenu switches Monitor Safety, Safe Title, Center and Film guides on and off. Center draws a crosshair through the middle of the frame, which is usually all you need while positioning a title, mask or graphic.

When the lines must never reach the final render, Viewer Guides are safer than a temporary Grid node. They live in the Viewer and stay out of the image flow, so there's no effect node to remember to disable before export.

If the guides don't appear, check that you opened the context menu inside the Fusion Viewer itself and not over the node area. The Node Editor, Inspector and Viewer each have their own right-click menu.

Grid vs Grid Warp

Grid draws lines. Grid Warp uses a lattice to reshape the image: it's a 2D deformation grid with movable vertices, and it bends the picture so the source grid matches the destination grid you edit. Both put a grid-like control on screen, but their outputs are unrelated.

• Choose Grid for a visible pattern, alignment overlay or graphic background.
• Choose Grid Warp when you need to bend, stretch or locally reshape part of the source.

If your image starts distorting when you expected straight overlay lines, remove Grid Warp and add the Resolve FX Grid tool. When you do need a controlled deformation, treat the lattice as a set of handles and keep an untouched source branch around for comparison.

A Grid Is Not a Multi-Video Layout

A visible Grid tool doesn't divide clips into tiles. For a two-by-two or three-by-three video wall, each clip needs its own branch, usually with a Transform for scale and position, then Merge nodes to combine the branches.

The grid can still help as a temporary spacing reference, but remove or bypass it once the layout is finished unless the design calls for visible separator lines. For one inset, the picture-in-picture guide is faster. For several coordinated frames, build the layout in Fusion and label each source branch before the node tree grows.

A Clean Grid Workflow

• Use Viewer Guides for temporary alignment.
• Use Grid only when the lines should be processed with the image and show up in the result.
• Feed Grid from MediaIn for an overlay or from Background for a standalone pattern.
• View Grid directly with 1 or 2 before you debug the rest of the comp.
• Use Grid Warp only for deformation.
• Build video walls with Transform and Merge branches. The Grid effect won't tile clips.

Fusion works as a chain of connected image operations with no fixed layer stack; Blackmagic's overview of the Fusion workspace shows the node-based approach behind effects, compositing and motion graphics. Once you know whether the grid belongs in the image or only in the Viewer, the correct setup is usually one node or one menu command.

Jason Miller I run DaVinci Resolve Club as an independent publication: hands-on edits, color grading breakdowns, Fairlight sessions, Fusion tests, and honest notes on where Resolve gets in the way.