app/node_modules/@babylonjs/loaders/glTF/2.0/Extensions/KHR_materials_sheen.js

import { PBRMaterial } from "@babylonjs/core/Materials/PBR/pbrMaterial.js";
import { GLTFLoader } from "../glTFLoader.js";
import { Color3 } from "@babylonjs/core/Maths/math.color.js";
const NAME = "KHR_materials_sheen";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_sheen/README.md)
 * [Playground Sample](https://www.babylonjs-playground.com/frame.html#BNIZX6#4)
 */
// eslint-disable-next-line @typescript-eslint/naming-convention
export class KHR_materials_sheen {
    /**
     * @internal
     */
    constructor(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        /**
         * Defines a number that determines the order the extensions are applied.
         */
        this.order = 190;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @internal */
    dispose() {
        this._loader = null;
    }
    /**
     * @internal
     */
    loadMaterialPropertiesAsync(context, material, babylonMaterial) {
        return GLTFLoader.LoadExtensionAsync(context, material, this.name, (extensionContext, extension) => {
            const promises = new Array();
            promises.push(this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
            promises.push(this._loadSheenPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(() => { });
        });
    }
    _loadSheenPropertiesAsync(context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof PBRMaterial)) {
            throw new Error(`${context}: Material type not supported`);
        }
        const promises = new Array();
        babylonMaterial.sheen.isEnabled = true;
        babylonMaterial.sheen.intensity = 1;
        if (properties.sheenColorFactor != undefined) {
            babylonMaterial.sheen.color = Color3.FromArray(properties.sheenColorFactor);
        }
        else {
            babylonMaterial.sheen.color = Color3.Black();
        }
        if (properties.sheenColorTexture) {
            promises.push(this._loader.loadTextureInfoAsync(`${context}/sheenColorTexture`, properties.sheenColorTexture, (texture) => {
                texture.name = `${babylonMaterial.name} (Sheen Color)`;
                babylonMaterial.sheen.texture = texture;
            }));
        }
        if (properties.sheenRoughnessFactor !== undefined) {
            babylonMaterial.sheen.roughness = properties.sheenRoughnessFactor;
        }
        else {
            babylonMaterial.sheen.roughness = 0;
        }
        if (properties.sheenRoughnessTexture) {
            properties.sheenRoughnessTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(`${context}/sheenRoughnessTexture`, properties.sheenRoughnessTexture, (texture) => {
                texture.name = `${babylonMaterial.name} (Sheen Roughness)`;
                babylonMaterial.sheen.textureRoughness = texture;
            }));
        }
        babylonMaterial.sheen.albedoScaling = true;
        babylonMaterial.sheen.useRoughnessFromMainTexture = false;
        return Promise.all(promises).then(() => { });
    }
}
GLTFLoader.RegisterExtension(NAME, (loader) => new KHR_materials_sheen(loader));
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