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

import { PBRMaterial } from "@babylonjs/core/Materials/PBR/pbrMaterial.js";
import { GLTFLoader } from "../glTFLoader.js";
const NAME = "KHR_materials_clearcoat";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_clearcoat/README.md)
 * [Playground Sample](https://www.babylonjs-playground.com/frame.html#7F7PN6#8)
 */
// eslint-disable-next-line @typescript-eslint/naming-convention
export class KHR_materials_clearcoat {
    /**
     * @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._loadClearCoatPropertiesAsync(extensionContext, extension, babylonMaterial));
            return Promise.all(promises).then(() => { });
        });
    }
    _loadClearCoatPropertiesAsync(context, properties, babylonMaterial) {
        if (!(babylonMaterial instanceof PBRMaterial)) {
            throw new Error(`${context}: Material type not supported`);
        }
        const promises = new Array();
        babylonMaterial.clearCoat.isEnabled = true;
        babylonMaterial.clearCoat.useRoughnessFromMainTexture = false;
        babylonMaterial.clearCoat.remapF0OnInterfaceChange = false;
        if (properties.clearcoatFactor != undefined) {
            babylonMaterial.clearCoat.intensity = properties.clearcoatFactor;
        }
        else {
            babylonMaterial.clearCoat.intensity = 0;
        }
        if (properties.clearcoatTexture) {
            promises.push(this._loader.loadTextureInfoAsync(`${context}/clearcoatTexture`, properties.clearcoatTexture, (texture) => {
                texture.name = `${babylonMaterial.name} (ClearCoat Intensity)`;
                babylonMaterial.clearCoat.texture = texture;
            }));
        }
        if (properties.clearcoatRoughnessFactor != undefined) {
            babylonMaterial.clearCoat.roughness = properties.clearcoatRoughnessFactor;
        }
        else {
            babylonMaterial.clearCoat.roughness = 0;
        }
        if (properties.clearcoatRoughnessTexture) {
            properties.clearcoatRoughnessTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(`${context}/clearcoatRoughnessTexture`, properties.clearcoatRoughnessTexture, (texture) => {
                texture.name = `${babylonMaterial.name} (ClearCoat Roughness)`;
                babylonMaterial.clearCoat.textureRoughness = texture;
            }));
        }
        if (properties.clearcoatNormalTexture) {
            properties.clearcoatNormalTexture.nonColorData = true;
            promises.push(this._loader.loadTextureInfoAsync(`${context}/clearcoatNormalTexture`, properties.clearcoatNormalTexture, (texture) => {
                texture.name = `${babylonMaterial.name} (ClearCoat Normal)`;
                babylonMaterial.clearCoat.bumpTexture = texture;
            }));
            babylonMaterial.invertNormalMapX = !babylonMaterial.getScene().useRightHandedSystem;
            babylonMaterial.invertNormalMapY = babylonMaterial.getScene().useRightHandedSystem;
            if (properties.clearcoatNormalTexture.scale != undefined) {
                babylonMaterial.clearCoat.bumpTexture.level = properties.clearcoatNormalTexture.scale;
            }
        }
        return Promise.all(promises).then(() => { });
    }
}
GLTFLoader.RegisterExtension(NAME, (loader) => new KHR_materials_clearcoat(loader));
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