@babylonjs/loaders
Version:
For usage documentation please visit https://doc.babylonjs.com/features/featuresDeepDive/importers/loadingFileTypes/.
77 lines • 3.86 kB
JavaScript
import { GLTFLoader } from "../glTFLoader.js";
import { Color3 } from "@babylonjs/core/Maths/math.color.js";
import { registerGLTFExtension, unregisterGLTFExtension } from "../glTFLoaderExtensionRegistry.js";
const NAME = "KHR_materials_specular";
/**
* [Specification](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_specular/README.md)
*/
// eslint-disable-next-line @typescript-eslint/naming-convention
export class KHR_materials_specular {
/**
* @internal
*/
constructor(loader) {
/**
* The name of this extension.
*/
this.name = NAME;
/**
* Defines a number that determines the order the extensions are applied.
*/
this.order = 190;
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._loadSpecularPropertiesAsync(extensionContext, extension, babylonMaterial));
// Handle the EXT_materials_specular_edge_color sub-extension
// https://github.com/KhronosGroup/glTF/blob/2a1111b88f052cbd3e2d82abb9faee56e7494904/extensions/2.0/Vendor/EXT_materials_specular_edge_color/README.md
const adapter = this._loader._getOrCreateMaterialAdapter(babylonMaterial);
if (extension.extensions && extension.extensions.EXT_materials_specular_edge_color) {
const specularEdgeColorExtension = extension.extensions.EXT_materials_specular_edge_color;
if (specularEdgeColorExtension.specularEdgeColorEnabled) {
adapter.enableSpecularEdgeColor(true);
}
}
// eslint-disable-next-line github/no-then
return await Promise.all(promises).then(() => { });
});
}
// eslint-disable-next-line @typescript-eslint/promise-function-async, no-restricted-syntax
_loadSpecularPropertiesAsync(context, properties, babylonMaterial) {
const adapter = this._loader._getOrCreateMaterialAdapter(babylonMaterial);
const promises = new Array();
// Set non-texture properties immediately
adapter.specularWeight = properties.specularFactor ?? 1.0;
adapter.specularColor = properties.specularColorFactor !== undefined ? Color3.FromArray(properties.specularColorFactor) : new Color3(1, 1, 1);
if (properties.specularTexture) {
properties.specularTexture.nonColorData = true;
promises.push(this._loader.loadTextureInfoAsync(`${context}/specularTexture`, properties.specularTexture, (texture) => {
texture.name = `${babylonMaterial.name} (Specular)`;
adapter.specularWeightTexture = texture;
}));
}
if (properties.specularColorTexture) {
promises.push(this._loader.loadTextureInfoAsync(`${context}/specularColorTexture`, properties.specularColorTexture, (texture) => {
texture.name = `${babylonMaterial.name} (Specular Color)`;
adapter.specularColorTexture = texture;
}));
}
// eslint-disable-next-line github/no-then
return Promise.all(promises).then(() => { });
}
}
unregisterGLTFExtension(NAME);
registerGLTFExtension(NAME, true, (loader) => new KHR_materials_specular(loader));
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