@babylonjs/viewer/dist/chunks/KHR_texture_basisu-Cx4X85HU.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 { b as GLTFLoader, A as ArrayItem } from './glTFLoader.pure-BaIedO7s.esm.js';
import { bo as unregisterGLTFExtension, bp as registerGLTFExtension } from './index-MZPybX0H.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_basisu";
/**
 * [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_texture_basisu/README.md)
 */
// eslint-disable-next-line @typescript-eslint/naming-convention
class KHR_texture_basisu {
    /**
     * @internal
     */
    constructor(loader) {
        /** The name of this extension. */
        this.name = NAME;
        this._loader = loader;
        this.enabled = loader.isExtensionUsed(NAME);
    }
    /** @internal */
    dispose() {
        this._loader = null;
    }
    /**
     * @internal
     */
    // eslint-disable-next-line no-restricted-syntax
    _loadTextureAsync(context, texture, assign) {
        return GLTFLoader.LoadExtensionAsync(context, texture, this.name, async (extensionContext, extension) => {
            const sampler = texture.sampler == undefined ? GLTFLoader.DefaultSampler : ArrayItem.Get(`${context}/sampler`, this._loader.gltf.samplers, texture.sampler);
            const image = ArrayItem.Get(`${extensionContext}/source`, this._loader.gltf.images, extension.source);
            return await this._loader._createTextureAsync(context, sampler, image, (babylonTexture) => {
                assign(babylonTexture);
            }, texture._textureInfo.nonColorData ? { useRGBAIfASTCBC7NotAvailableWhenUASTC: true } : undefined, !texture._textureInfo.nonColorData);
        });
    }
}
let _Registered = false;
/**
 * Registers the KHR_texture_basisu 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_basisu() {
    if (_Registered) {
        return;
    }
    _Registered = true;
    unregisterGLTFExtension(NAME);
    registerGLTFExtension(NAME, true, (loader) => new KHR_texture_basisu(loader));
}

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

export { KHR_texture_basisu, RegisterKHR_texture_basisu };
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