← Fusion node reference
Fusion 3DAdvanced

Override3D

3D render-property override

Overrides visibility, lighting, shadow, matte and technical properties of existing 3D geometry non-destructively.

Override3D
DaVinci Resolve · Fusion

Overrides visibility, lighting, shadow, matte and technical properties of existing 3D geometry non-destructively.

Overview

What Override3D does

Overrides visibility, lighting, shadow, matte and technical properties of existing 3D geometry non-destructively.

Mental model

It is a layer of scene instructions: keep the model, override only the render properties needed for this branch.

Common uses

Create shadow-only branches
Make geometry camera-invisible but scene-active
Build matte or holdout variants
Create technical render passes

Flow anatomy

Inputs & outputs

The port structure shows how this node fits into a Fusion graph.

SceneInput

Incoming 3D geometry or scene branch processed by the node.

Override3D
Fusion node

SceneOutput

Processed 3D geometry or scene data for Merge3D, Renderer3D or another 3D node.

Inspector

Important parameters

Start with these controls before reaching for more complicated workarounds.

Wireframe / Do Wireframe

Displays the geometry as a wireframe.

Useful for checking topology, scale and whether imported geometry loaded correctly.

Visibility / Do Visible

Overrides the object’s Visible state when this option is enabled.

Visibility / Do Unseen By Cameras

Keeps the object in the 3D scene while hiding it from camera renders.

The object can still be useful for lighting, shadows or other scene interactions depending on the setup.

Visibility / Do Cull Front Face

Overrides front-face culling for the affected 3D objects.

Visibility / Do Cull Back Face

Overrides back-face culling for the affected 3D objects.

Visibility / Do Suppress Aux Channels for Transparent Pixels

Suppresses auxiliary 3D channels where the object is transparent.

This keeps Object ID, Material ID, normals and similar passes clean around fully transparent pixels.

Lighting / Do Affected By Lights

Controls whether scene lights illuminate this object.

Lighting / Do Shadow Caster

Controls whether the object casts shadows onto other geometry.

Lighting / Do Shadow Receiver

Controls whether the object or material receives shadows.

Matte / Do Matte

Enables the matte-state override for the affected 3D objects.

Normals/Tangents / Do Scale

Sets the display length of the normal and tangent guides.

This affects the diagnostic overlay, not the actual geometry.

Normals/Tangents / Do Show Normals

Shows surface normals for geometry diagnostics.

Normals/Tangents / Do Show Tangents

Shows surface tangents for geometry and tangent-space diagnostics.

Object ID / Do Object ID

Assigns the Object ID written to the render passes.

Object IDs provide a clean way to isolate individual 3D objects after rendering.

Material ID / Do MaterialID

Assigns the Material ID written to the render passes.

Material IDs can be used later to isolate surfaces in compositing.

Blend Mode / Do Blend Mode

Sets how strongly the processed result is mixed into the image.

Exclusions / Limit by Object ID

Assigns the Object ID written to the render passes.

Object IDs provide a clean way to isolate individual 3D objects after rendering.

Exclusions / Limit by Material ID

Assigns the Material ID written to the render passes.

Material IDs can be used later to isolate surfaces in compositing.

Settings

Standard Fusion node settings for processing, masks, blending and animation.

Practical setup

A reliable workflow

  1. 1

    Create or import the geometry that Override3D will work with.

  2. 2

    Insert Override3D at the point where the 3D behavior should change.

  3. 3

    Inspect the Override3D result in a 3D Viewer with a simple camera and light before building the final rig.

  4. 4

    Keep transforms, materials and Override3D-specific overrides in clearly separated parts of the scene.

  5. 5

    Merge the finished Override3D branch into the scene and render it through Renderer3D.

Typical node chain
Source
Override3D
Renderer3D

Examples

Where this node fits in real work

Core 3D setup

Override3D processes a geometry branch before it enters the main scene.

GeometryOverride3DMerge3DRenderer3D

Technical 3D workflow

Override3D is isolated in its own branch for easier debugging and reuse.

SourceOverride3DRenderer3D

Troubleshooting

Common mistakes

Changing several Override3D parameters at once and losing track of which control caused the result.
Approving Override3D from a single still frame without checking motion or representative lighting.
Adding extra controls around Override3D before the basic source, transform and render path is known to work.

Production notes

Practical tips

Name Override3D by purpose when a composition contains several instances.
Use a lightweight preview while tuning Override3D; restore the intended quality settings before the final render.

Related nodes