Viewer Class

The Viewer class is responsible for initializing and rendering the iJewelMiniViewer in a specified container.

Constructor

constructor(container: HTMLElement, project: Project, options?: ViewerOptions)

• Parameters:
  • container: The HTML element in which the viewer will be rendered.
  • project: An object containing the project configuration details.
  • options: An optional object containing various viewer options.

Methods

render(project: any)

• Parameters:

  • project: The project configuration to be rendered.

• Description: Renders the viewer with the given project configuration. This method sets up the viewer with the specified options and displays the UI components. To update the project and the 3D model, call viewer.render(project). This will clear the previous project and render the new one.

TIP

You can call viewer.render(newProject) to load new models and clear the previous scene on the same Viewer instance.

ViewerOptions

The ViewerOptions interface provides several optional properties to control the appearance and behavior of the viewer.

Property	Type	Description	Default
viewer	ViewerApp	An existing viewer instance to be used for rendering. If not provided, a new viewer will be created.	undefined
diamondKey	string	A license key requried for enabling diamond materials, contact us to get your key.	undefined
showLogo	boolean	Determines whether the logo is displayed in the viewer.	true
showCard	boolean	Controls the visibility of the floating card that displays model details.	true
showSwitchNode	boolean	Show or hide swich nodes from the configurator.	false
splitMaterialTabs	boolean	Determines if material options are displayed in separate tabs.	undefined
hideQuality	boolean	Controls the visibility of quality settings in the UI.	false
logoScale	number	Specifies the scale of the logo.	1
logoPositionX	number	Determines the horizontal position of the logo on the screen. The value ranges from 0 to 1, where 0 positions the logo at the far left and 1 positions the logo at the far right.	1
logoPositionY	number	Similar to logoPositionX but vertically	0
showZoomButtons	boolean	Determines whether zoom buttons are displayed in the viewer.	false
showUiButtons	boolean	Determines whether ui buttons bar is displayed in the viewer.	true
enableZoom	boolean	Enables or disables zoom functionality.	true
enableScrollWheel	boolean	Enables or disables zooming with the scroll wheel.	true

Project Configuration

When initializing the iJewel Viewer, you need to provide a project configuration object that includes various settings for your 3D model, environment, materials, and more. Below is a detailed explanation of the properties that can be included in the project configuration object.

Project Properties

Property	Type	Description
modelUrl	string	URL of the 3D model file (e.g., a .glb file).
basePath	string	Base URL path where your assets are stored. Can be an empty string if not needed.
posterUrl	string	URL of the poster image.
logo	string	URL of the logo to be displayed in the viewer.
name	string	Name of the project.
description	string	Description of the project.
presetLib	any	Library of presets used in the project.
materialLib	any	Library of materials used in the project.
sceneConfig	object	Configuration for the scene environment, including background and ground settings.
cameraConfig	object	Configuration for the camera settings.
materialConfig	object	Configuration for the materials used in the model.
configuratorConfig	array	Configuration for the configurator options available in the viewer.
plugins	object	Configuration for the plugins used in the viewer.
category	string	Specify the category of the model, e.g. Ring, Necklace or Watch.
tags	string[]	An array of strings containing tags for the model.

Detailed Explanation

• modelUrl: The URL pointing to the 3D model file you want to load.
• basePath: The base path for your assets, which can be left empty if not needed.
• posterUrl: The URL of the poster image to be displayed before the model loads.
• logo: The URL of the logo image to be displayed within the viewer.
• name: name of the model to be displayed in the floating card.
• description: A brief description of the model to be displayed in the floating card.
• presetLib: The library of presets for the sceneConfig.
• materialLib: The library of materials used in materialConfig and configuratorConfig .
• sceneConfig:
  • Environment: Path to the environment HDR file.
  • GemEnvironment: Path to the gem environment EXR file.
  • Ground: Path to the ground configuration JSON file.
  • Background : Path to the background image for the 3d scene.
• cameraConfig: Configuration for the camera settings.
• materialConfig: The materials that are going to be applied to the model on load
  • materials: An array of material objects, each with a name and a path to the material file.
  • type: The type of material configuration, typically MaterialPresetPlugin.
• configuratorConfig: An array of configurator option objects used in the material configurator ui, each with:
  • name: The name of the material layer in the 3d file.
  • title: The display title for the option.
  • options: An array of available options for this configurator, each with:
    • name: The name of the material or gem file.
    • type: The type of option, e.g., metal or gem.
• plugins:
  • SimpleBackgroundEnvUiPlugin2: Configuration for the background and environment UI plugin, including:
    • sceneEnvironmentRotation: Rotation of the environment.
    • sceneEnvironmentIntensity: Intensity of the environment lighting.
    • sceneEnvironmentFixedDirection: Boolean indicating if the environment direction is fixed.
    • tonemapBackground: Boolean indicating if background tonemapping is enabled.
    • tonemapGround: Boolean indicating if ground tonemapping is enabled.
    • type: The type of the plugin, typically SimpleBackgroundEnvUiPlugin2.

TIP

The paths for the scene presets and materials can either be absolute URLs or relative to the basePath specified in your project configuration. This flexibility allows you to organize and reference your assets in a way that best fits your project structure.

Event Listener

The Viewer class emits a custom event ijewel-viewer-ready when the viewer is fully initialized and ready for interaction. You can listen for this event to perform additional actions once the viewer is ready.

Example Usage

const project = {
  modelUrl: "https://example.com/model.glb",
  basePath: "https://example.com/assets/",
  logo: "https://example.com/logo.png",
  sceneConfig: { /* scene configuration */ },
  materialConfig: { /* material configuration */ },
  configuratorConfig: [/* configurator configuration */],
};

const viewerOptions = {
  showLogo: true,
  showCard: true,
  showSwitchNode: false,
  splitMaterialTabs: true,
  useIjewelLogo: false,
  hideQuality: true,
  logoScale: 1.5,
};

const viewer = new ijewelViewer.Viewer(document.getElementById("root"), project, viewerOptions);

// To update the project and the 3D model
viewer.render(newProject);

// Event listener for viewer ready event
window.addEventListener("ijewel-viewer-ready", async (ev) => {
  const viewer = ev.detail.viewer;
  // Additional actions to perform with the viewer instance

  //Example
  //set the max and min zoom for mobile and desktop 
  viewer.scene.activeCamera.addEventListener('update', (ev)=>{
      if(window.innerWidth < window.innerHeight){
        (viewer.scene.activeCamera.getControls()).minDistance = 14;
        (viewer.scene.activeCamera.getControls()).maxDistance = 9;

      }else{
        (viewer.scene.activeCamera.getControls()).maxDistance = 12;
        (viewer.scene.activeCamera.getControls()).minDistance = 7;
      }
  });
});