@babylonjs/loaders/glTF/2.0/Extensions/KHR_texture_transform.js

import { Texture } from "@babylonjs/core/Materials/Textures/texture";
import { GLTFLoader } from "../glTFLoader";
var NAME = "KHR_texture_transform";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/master/extensions/2.0/Khronos/KHR_texture_transform/README.md)
 */
var KHR_texture_transform = /** @class */ (function () {
    /** @hidden */
    function KHR_texture_transform(loader) {
        /** The name of this extension. */
        this.name = NAME;
        /** Defines whether this extension is enabled. */
        this.enabled = true;
        this._loader = loader;
    }
    /** @hidden */
    KHR_texture_transform.prototype.dispose = function () {
        delete this._loader;
    };
    /** @hidden */
    KHR_texture_transform.prototype.loadTextureInfoAsync = function (context, textureInfo, assign) {
        var _this = this;
        return GLTFLoader.LoadExtensionAsync(context, textureInfo, this.name, function (extensionContext, extension) {
            return _this._loader.loadTextureInfoAsync(context, textureInfo, function (babylonTexture) {
                if (!(babylonTexture instanceof Texture)) {
                    throw new Error(extensionContext + ": Texture type not supported");
                }
                if (extension.offset) {
                    babylonTexture.uOffset = extension.offset[0];
                    babylonTexture.vOffset = extension.offset[1];
                }
                // Always rotate around the origin.
                babylonTexture.uRotationCenter = 0;
                babylonTexture.vRotationCenter = 0;
                if (extension.rotation) {
                    babylonTexture.wAng = -extension.rotation;
                }
                if (extension.scale) {
                    babylonTexture.uScale = extension.scale[0];
                    babylonTexture.vScale = extension.scale[1];
                }
                if (extension.texCoord != undefined) {
                    babylonTexture.coordinatesIndex = extension.texCoord;
                }
                assign(babylonTexture);
            });
        });
    };
    return KHR_texture_transform;
}());
export { KHR_texture_transform };
GLTFLoader.RegisterExtension(NAME, function (loader) { return new KHR_texture_transform(loader); });
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