@babylonjs/loaders
Version:
For usage documentation please visit https://doc.babylonjs.com/features/featuresDeepDive/importers/loadingFileTypes/.
67 lines • 2.75 kB
JavaScript
import { Color3 } from "@babylonjs/core/Maths/math.color.js";
import { GLTFLoader } from "../glTFLoader.js";
import { registerGLTFExtension, unregisterGLTFExtension } from "../glTFLoaderExtensionRegistry.js";
const NAME = "KHR_materials_unlit";
/**
* [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_unlit/README.md)
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
export class KHR_materials_unlit {
/**
* @internal
*/
constructor(loader) {
/**
* The name of this extension.
*/
this.name = NAME;
/**
* Defines a number that determines the order the extensions are applied.
*/
this.order = 210;
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 () => {
return await this._loadUnlitPropertiesAsync(context, material, babylonMaterial);
});
}
// eslint-disable-next-line @typescript-eslint/promise-function-async, no-restricted-syntax
_loadUnlitPropertiesAsync(context, material, babylonMaterial) {
const adapter = this._loader._getOrCreateMaterialAdapter(babylonMaterial);
const promises = new Array();
const properties = material.pbrMetallicRoughness;
if (properties) {
if (properties.baseColorFactor) {
adapter.baseColor = Color3.FromArray(properties.baseColorFactor);
adapter.geometryOpacity = properties.baseColorFactor[3];
}
if (properties.baseColorTexture) {
promises.push(this._loader.loadTextureInfoAsync(`${context}/baseColorTexture`, properties.baseColorTexture, (texture) => {
texture.name = `${babylonMaterial.name} (Base Color)`;
adapter.baseColorTexture = texture;
}));
}
}
adapter.isUnlit = true;
if (material.doubleSided) {
adapter.backFaceCulling = false;
adapter.twoSidedLighting = true;
}
this._loader.loadMaterialAlphaProperties(context, material, babylonMaterial);
// eslint-disable-next-line github/no-then
return Promise.all(promises).then(() => { });
}
}
unregisterGLTFExtension(NAME);
registerGLTFExtension(NAME, true, (loader) => new KHR_materials_unlit(loader));
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