Load3D - ComfyUI Built-in Node Documentation

The Load3D node is a core node for loading and processing 3D model files. When loading the node, it automatically retrieves available 3D resources from ComfyUI/input/3d/. You can also upload supported 3D files for preview using the upload function. Supported Formats Currently, this node supports multiple 3D file formats, including .gltf, .glb, .obj, .fbx, and .stl. 3D Node Preferences Some related preferences for 3D nodes can be configured in ComfyUI’s settings menu. Please refer to the following documentation for corresponding settings: Settings Menu - 3D Besides regular node outputs, Load3D has lots of 3D view-related settings in the canvas menu.

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Inputs

Parameter Name	Type	Description	Default	Range
model_file	File Selection	3D model file path, supports upload, defaults to reading model files from ComfyUI/input/3d/	-	Supported formats
width	INT	Canvas rendering width	1024	1-4096
height	INT	Canvas rendering height	1024	1-4096

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Outputs

Parameter Name	Data Type	Description
image	IMAGE	Canvas rendered image
mask	MASK	Mask containing current model position
mesh_path	STRING	Model file path
normal	IMAGE	Normal map
lineart	IMAGE	Line art image output, corresponding edge_threshold can be adjusted in the canvas model menu
camera_info	LOAD3D_CAMERA	Camera information
recording_video	VIDEO	Recorded video (only when recording exists)

All corresponding outputs preview

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Canvas Area Description

The Load3D node’s Canvas area contains numerous view operations, including:

• Preview view settings (grid, background color, preview view)
• Camera control: Control FOV, camera type
• Global illumination intensity: Adjust lighting intensity
• Video recording: Record and export videos
• Model export: Supports GLB, OBJ, STL formats
• And more

1. Contains multiple menus and hidden menus of the Load 3D node
2. Menu for resizing preview window and canvas video recording
3. 3D view operation axis
4. Preview thumbnail
5. Preview size settings, scale preview view display by setting dimensions and then resizing window

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1. View Operations

View control operations:

• Left-click + drag: Rotate the view
• Right-click + drag: Pan the view
• Middle wheel scroll or middle-click + drag: Zoom in/out
• Coordinate axis: Switch views

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2. Left Menu Functions

In the canvas, some settings are hidden in the menu. Click the menu button to expand different menus

• 1. Scene: Contains preview window grid, background color, preview settings
• 2. Model: Model rendering mode, texture materials, up direction settings
• 3. Camera: Switch between orthographic and perspective views, and set the perspective angle size
• 4. Light: Scene global illumination intensity
• 5. Export: Export model to other formats (GLB, OBJ, STL)

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Scene

The Scene menu provides some basic scene setting functions

1. Show/Hide grid
2. Set background color
3. Click to upload a background image
4. Hide the preview

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Model

The Model menu provides some model-related functions

1. Up direction: Determine which axis is the up direction for the model
2. Material mode: Switch model rendering modes - Original, Normal, Wireframe, Lineart

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Camera

This menu provides switching between orthographic and perspective views, and perspective angle size settings

1. Camera: Quickly switch between orthographic and orthographic views
2. FOV: Adjust FOV angle

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Light

Through this menu, you can quickly adjust the scene’s global illumination intensity

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Export

This menu provides the ability to quickly convert and export model formats

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3. Right Menu Functions

The right menu has two main functions:

1. Reset view ratio: After clicking the button, the view will adjust the canvas rendering area ratio according to the set width and height
2. Video recording: Allows you to record current 3D view operations as video, allows import, and can be output as recording_video to subsequent nodes