Update load 3d node doc (#254)

* Add lode 3d docs

* Update navigation

* Update load 3d docs

* Remove upload texture

Author: comfyui-wiki

built-in-nodes/Load3D.mdx

@@ -0,0 +1,140 @@
+---
+title: "Load3D - ComfyUI Built-in Node Documentation"
+description: "The Load3D node is a core node in ComfyUI for loading and previewing various 3D model files, supporting multi-format import and rich three-dimensional view operations."
+sidebarTitle: "Load3D"
+icon: "circle"
+---
+
+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](/interface/settings/3d)
+
+Besides regular node outputs, Load3D has lots of 3D view-related settings in the canvas menu.
+
+## 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      |
+
+## 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
+![View Operation Demo](/images/comfy_core/load3d/load3d_outputs.jpg)
+
+## 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
+
+![Load 3D Node UI](/images/comfy_core/load3d/load3d_ui.jpg)
+
+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
+
+### 1. View Operations
+
+<video
+  controls
+  muted
+  loop
+  playsInline
+  className="w-full aspect-video rounded-xl"
+  src="/images/comfy_core/load3d/view_operations.mp4"
+></video>
+
+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
+
+### 2. Left Menu Functions
+
+![Menu](/images/comfy_core/load3d/menu.jpg)
+
+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)
+
+#### Scene
+
+![scene menu](/images/comfy_core/load3d/menu_scene.jpg)
+
+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
+
+#### Model
+
+![Menu_Scene](/images/comfy_core/load3d/menu_model.jpg)
+
+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
+
+#### Camera
+
+![menu_modelmenu_camera](/images/comfy_core/load3d/menu_camera.jpg)
+
+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
+
+#### Light
+
+![menu_modelmenu_camera](/images/comfy_core/load3d/menu_light.jpg)
+
+Through this menu, you can quickly adjust the scene's global illumination intensity
+
+#### Export
+
+![menu_export](/images/comfy_core/load3d/menu_export.jpg)
+
+This menu provides the ability to quickly convert and export model formats
+
+### 3. Right Menu Functions
+
+<video
+  controls
+  muted
+  loop
+  playsInline
+  className="w-full aspect-video rounded-xl"
+  src="/images/comfy_core/load3d/recording.mp4"
+></video>
+
+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

docs.json

@@ -326,6 +326,12 @@
                   }
                 ]
               },
+              {
+                "group": "3D",
+                "pages": [
+                  "built-in-nodes/Load3D"
+                ]
+              },
               {
                 "group": "API Node",
                 "pages": [
@@ -866,6 +872,12 @@
                   }
                 ]
               },
+              {
+                "group": "3D",
+                "pages": [
+                  "zh-CN/built-in-nodes/Load3D"
+                ]
+              },
               {
                 "group": "API 节点",
                 "pages": [