@babylonjs/core
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JavaScript
/** This file must only contain pure code and pure imports */
import { Scene } from "../scene.pure.js";
import { SceneComponentConstants } from "../sceneComponent.js";
import { Mesh } from "./mesh.pure.js";
/**
* Defines the simplification queue scene component responsible to help scheduling the various simplification task
* created in a scene
*/
export class SimplicationQueueSceneComponent {
/**
* Creates a new instance of the component for the given scene
* @param scene Defines the scene to register the component in
*/
constructor(scene) {
/**
* The component name helpfull to identify the component in the list of scene components.
*/
this.name = SceneComponentConstants.NAME_SIMPLIFICATIONQUEUE;
this.scene = scene;
}
/**
* Registers the component in a given scene
*/
register() {
this.scene._beforeCameraUpdateStage.registerStep(SceneComponentConstants.STEP_BEFORECAMERAUPDATE_SIMPLIFICATIONQUEUE, this, this._beforeCameraUpdate);
}
/**
* Rebuilds the elements related to this component in case of
* context lost for instance.
*/
rebuild() {
// Nothing to do for this component
}
/**
* Disposes the component and the associated resources
*/
dispose() {
// Nothing to do for this component
}
_beforeCameraUpdate() {
if (this.scene._simplificationQueue && !this.scene._simplificationQueue.running) {
this.scene._simplificationQueue.executeNext();
}
}
}
let _Registered = false;
/**
* Register side effects for meshSimplificationSceneComponent.
* Safe to call multiple times; only the first call has an effect.
* @param simplificationQueueClass The SimplificationQueue class to use for lazy instantiation
*/
export function RegisterMeshSimplificationSceneComponent(simplificationQueueClass) {
if (_Registered) {
return;
}
_Registered = true;
Object.defineProperty(Scene.prototype, "simplificationQueue", {
get: function () {
if (!this._simplificationQueue) {
this._simplificationQueue = new simplificationQueueClass();
let component = this._getComponent(SceneComponentConstants.NAME_SIMPLIFICATIONQUEUE);
if (!component) {
component = new SimplicationQueueSceneComponent(this);
this._addComponent(component);
}
}
return this._simplificationQueue;
},
set: function (value) {
this._simplificationQueue = value;
},
enumerable: true,
configurable: true,
});
Mesh.prototype.simplify = function (settings, parallelProcessing = true, simplificationType = 0 /* SimplificationType.QUADRATIC */, successCallback) {
this.getScene().simplificationQueue.addTask({
settings: settings,
parallelProcessing: parallelProcessing,
mesh: this,
simplificationType: simplificationType,
successCallback: successCallback,
});
return this;
};
}
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