@babylonjs/viewer/dist/chunks/KHR_texture_transform-kSaivSIT.esm.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import { m as Texture, bo as unregisterGLTFExtension, bp as registerGLTFExtension } from './index-MZPybX0H.esm.js';
import { b as GLTFLoader } from './glTFLoader.pure-BaIedO7s.esm.js';
import './morphTargetManager-CK7B3gaT.esm.js';
import './bone.pure-CjsCww39.esm.js';
import './skeleton-D7Sw58cv.esm.js';
import './assetContainer-Bm0vsreJ.esm.js';
import './objectModelMapping-De5EKNEZ.esm.js';
import './spotLight.pure-CRdZC6Ci.esm.js';

const NAME = "KHR_texture_transform";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_texture_transform/README.md)
 */
// eslint-disable-next-line @typescript-eslint/naming-convention
class KHR_texture_transform {
    /**
     * @internal
     */
    constructor(loader) {
        /**
         * The name of this extension.
         */
        this.name = NAME;
        this._loader = loader;
        this.enabled = this._loader.isExtensionUsed(NAME);
    }
    /** @internal */
    dispose() {
        this._loader = null;
    }
    /**
     * @internal
     */
    // eslint-disable-next-line no-restricted-syntax
    loadTextureInfoAsync(context, textureInfo, assign) {
        return GLTFLoader.LoadExtensionAsync(context, textureInfo, this.name, async (extensionContext, extension) => {
            return await this._loader.loadTextureInfoAsync(context, textureInfo, (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);
            });
        });
    }
}
let _Registered = false;
/**
 * Registers the KHR_texture_transform glTF loader extension.
 * Safe to call multiple times; only the first call has an effect.
 */
// eslint-disable-next-line @typescript-eslint/naming-convention
function RegisterKHR_texture_transform() {
    if (_Registered) {
        return;
    }
    _Registered = true;
    unregisterGLTFExtension(NAME);
    registerGLTFExtension(NAME, true, (loader) => new KHR_texture_transform(loader));
}

/**
 * Re-exports the pure implementation and applies the runtime registration side effect.
 * Import "./KHR_texture_transform.pure" for tree-shakeable, side-effect-free usage.
 */
RegisterKHR_texture_transform();

export { KHR_texture_transform, RegisterKHR_texture_transform };
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