@babylonjs/loaders
Version:
For usage documentation please visit https://doc.babylonjs.com/features/featuresDeepDive/importers/loadingFileTypes/.
66 lines • 2.92 kB
JavaScript
import { GLTFLoader } from "../glTFLoader.js";
import { registerGLTFExtension, unregisterGLTFExtension } from "../glTFLoaderExtensionRegistry.js";
const NAME = "KHR_materials_anisotropy";
/**
* [Specification](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_anisotropy)
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
export class KHR_materials_anisotropy {
/**
* @internal
*/
constructor(loader) {
/**
* The name of this extension.
*/
this.name = NAME;
/**
* Defines a number that determines the order the extensions are applied.
*/
this.order = 195;
this._loader = loader;
this.enabled = this._loader.isExtensionUsed(NAME);
}
/** @internal */
dispose() {
this._loader = null;
}
/**
* @internal
*/
// eslint-disable-next-line no-restricted-syntax
loadMaterialPropertiesAsync(context, material, babylonMaterial) {
return GLTFLoader.LoadExtensionAsync(context, material, this.name, async (extensionContext, extension) => {
const promises = new Array();
promises.push(this._loader.loadMaterialPropertiesAsync(context, material, babylonMaterial));
promises.push(this._loadAnisotropyPropertiesAsync(extensionContext, extension, babylonMaterial));
await Promise.all(promises);
});
}
async _loadAnisotropyPropertiesAsync(context, properties, babylonMaterial) {
const adapter = this._loader._getOrCreateMaterialAdapter(babylonMaterial);
const promises = new Array();
// Set non-texture properties immediately
const anisotropyWeight = properties.anisotropyStrength ?? 0;
const anisotropyAngle = properties.anisotropyRotation ?? 0;
adapter.specularRoughnessAnisotropy = anisotropyWeight;
adapter.geometryTangentAngle = anisotropyAngle;
// Check if this is glTF-style anisotropy
const extensions = properties.extensions ?? {};
if (!extensions.EXT_materials_anisotropy_openpbr || !extensions.EXT_materials_anisotropy_openpbr.openPbrAnisotropyEnabled) {
adapter.configureGltfStyleAnisotropy(true);
}
// Load texture if present
if (properties.anisotropyTexture) {
properties.anisotropyTexture.nonColorData = true;
promises.push(this._loader.loadTextureInfoAsync(`${context}/anisotropyTexture`, properties.anisotropyTexture, (texture) => {
texture.name = `${babylonMaterial.name} (Anisotropy Intensity)`;
adapter.geometryTangentTexture = texture;
}));
}
await Promise.all(promises);
}
}
unregisterGLTFExtension(NAME);
registerGLTFExtension(NAME, true, (loader) => new KHR_materials_anisotropy(loader));
//# sourceMappingURL=KHR_materials_anisotropy.js.map