mirror of
https://github.com/CesiumGS/obj2gltf.git
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422 lines
19 KiB
JavaScript
422 lines
19 KiB
JavaScript
'use strict';
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const Cesium = require('cesium');
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const fsExtra = require('fs-extra');
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const loadMtl = require('../../lib/loadMtl');
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const loadTexture = require('../../lib/loadTexture');
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const obj2gltf = require('../../lib/obj2gltf');
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const clone = Cesium.clone;
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const coloredMaterialPath = 'specs/data/box/box.mtl';
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const texturedMaterialPath = 'specs/data/box-complex-material/box-complex-material.mtl';
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const texturedWithOptionsMaterialPath = 'specs/data/box-texture-options/box-texture-options.mtl';
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const multipleMaterialsPath = 'specs/data/box-multiple-materials/box-multiple-materials.mtl';
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const externalMaterialPath = 'specs/data/box-external-resources/box-external-resources.mtl';
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const resourcesInRootMaterialPath = 'specs/data/box-resources-in-root/box-resources-in-root.mtl';
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const externalInRootMaterialPath = 'specs/data/box-external-resources-in-root/box-external-resources-in-root.mtl';
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const transparentMaterialPath = 'specs/data/box-transparent/box-transparent.mtl';
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const diffuseAmbientSameMaterialPath = 'specs/data/box-diffuse-ambient-same/box-diffuse-ambient-same.mtl';
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const diffuseTexturePath = 'specs/data/box-textured/cesium.png';
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const transparentDiffuseTexturePath = 'specs/data/box-complex-material/diffuse.png';
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const alphaTexturePath = 'specs/data/box-complex-material-alpha/alpha.png';
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const ambientTexturePath = 'specs/data/box-complex-material/ambient.gif';
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const normalTexturePath = 'specs/data/box-complex-material/bump.png';
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const emissiveTexturePath = 'specs/data/box-complex-material/emission.jpg';
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const specularTexturePath = 'specs/data/box-complex-material/specular.jpeg';
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const specularShininessTexturePath = 'specs/data/box-complex-material/shininess.png';
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let diffuseTexture;
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let transparentDiffuseTexture;
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let alphaTexture;
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let ambientTexture;
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let normalTexture;
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let emissiveTexture;
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let specularTexture;
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let specularShininessTexture;
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const checkTransparencyOptions = {
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checkTransparency : true
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};
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const decodeOptions = {
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decode : true
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};
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let options;
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describe('loadMtl', () => {
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beforeAll(async () => {
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diffuseTexture = await loadTexture(diffuseTexturePath, decodeOptions);
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transparentDiffuseTexture = await loadTexture(transparentDiffuseTexturePath, checkTransparencyOptions);
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alphaTexture = await loadTexture(alphaTexturePath, decodeOptions);
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ambientTexture = await loadTexture(ambientTexturePath);
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normalTexture = await loadTexture(normalTexturePath);
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emissiveTexture = await loadTexture(emissiveTexturePath);
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specularTexture = await loadTexture(specularTexturePath, decodeOptions);
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specularShininessTexture = await loadTexture(specularShininessTexturePath, decodeOptions);
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});
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beforeEach(() => {
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options = clone(obj2gltf.defaults);
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options.overridingTextures = {};
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options.logger = () => {};
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options.hasNormals = true;
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});
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it('loads mtl', async () => {
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options.metallicRoughness = true;
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const materials = await loadMtl(coloredMaterialPath, options);
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expect(materials.length).toBe(1);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeUndefined();
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expect(pbr.metallicRoughnessTexture).toBeUndefined();
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expect(pbr.baseColorFactor).toEqual([0.64, 0.64, 0.64, 1.0]);
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expect(pbr.metallicFactor).toBe(0.5);
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expect(pbr.roughnessFactor).toBe(96.078431);
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expect(material.name).toBe('Material');
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expect(material.emissiveTexture).toBeUndefined();
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expect(material.normalTexture).toBeUndefined();
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expect(material.ambientTexture).toBeUndefined();
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expect(material.emissiveFactor).toEqual([0.0, 0.0, 0.1]);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('loads mtl with textures', async () => {
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options.metallicRoughness = true;
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const materials = await loadMtl(texturedMaterialPath, options);
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expect(materials.length).toBe(1);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeDefined();
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expect(pbr.metallicRoughnessTexture).toBeDefined();
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expect(pbr.baseColorFactor).toEqual([1.0, 1.0, 1.0, 0.9]);
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expect(pbr.metallicFactor).toBe(1.0);
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expect(pbr.roughnessFactor).toBe(1.0);
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expect(material.name).toBe('Material');
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expect(material.emissiveTexture).toBeDefined();
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expect(material.normalTexture).toBeDefined();
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expect(material.occlusionTexture).toBeDefined();
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expect(material.emissiveFactor).toEqual([1.0, 1.0, 1.0]);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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it('loads mtl with textures having options', async () => {
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options.metallicRoughness = true;
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const materials = await loadMtl(texturedWithOptionsMaterialPath, options);
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expect(materials.length).toBe(1);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeDefined();
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expect(pbr.metallicRoughnessTexture).toBeDefined();
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expect(pbr.baseColorFactor).toEqual([1.0, 1.0, 1.0, 0.9]);
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expect(pbr.metallicFactor).toBe(1.0);
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expect(pbr.roughnessFactor).toBe(1.0);
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expect(material.name).toBe('Material');
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expect(material.emissiveTexture).toBeDefined();
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expect(material.normalTexture).toBeDefined();
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expect(material.occlusionTexture).toBeDefined();
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expect(material.emissiveFactor).toEqual([1.0, 1.0, 1.0]);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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it('loads mtl with multiple materials', async () => {
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options.metallicRoughness = true;
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const materials = await loadMtl(multipleMaterialsPath, options);
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expect(materials.length).toBe(3);
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expect(materials[0].name).toBe('Blue');
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expect(materials[0].pbrMetallicRoughness.baseColorFactor).toEqual([0.0, 0.0, 0.64, 1.0]);
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expect(materials[1].name).toBe('Green');
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expect(materials[1].pbrMetallicRoughness.baseColorFactor).toEqual([0.0, 0.64, 0.0, 1.0]);
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expect(materials[2].name).toBe('Red');
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expect(materials[2].pbrMetallicRoughness.baseColorFactor).toEqual([0.64, 0.0, 0.0, 1.0]);
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});
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it('sets overriding textures', async () => {
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spyOn(fsExtra, 'readFile').and.callThrough();
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options.overridingTextures = {
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metallicRoughnessOcclusionTexture : alphaTexturePath,
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baseColorTexture : alphaTexturePath,
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emissiveTexture : emissiveTexturePath
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};
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const materials = await loadMtl(texturedMaterialPath, options);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture.name).toBe('alpha');
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expect(pbr.metallicRoughnessTexture.name).toBe('alpha');
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expect(material.emissiveTexture.name).toBe('emission');
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expect(material.normalTexture.name).toBe('bump');
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expect(fsExtra.readFile.calls.count()).toBe(3);
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});
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it('loads texture outside of the mtl directory', async () => {
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const materials = await loadMtl(externalMaterialPath, options);
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const material = materials[0];
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const baseColorTexture = material.pbrMetallicRoughness.baseColorTexture;
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expect(baseColorTexture.source).toBeDefined();
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expect(baseColorTexture.name).toBe('cesium');
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});
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it('does not load texture outside of the mtl directory when secure is true', async () => {
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const spy = jasmine.createSpy('logger');
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options.logger = spy;
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options.secure = true;
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const materials = await loadMtl(externalMaterialPath, options);
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const material = materials[0];
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const baseColorTexture = material.pbrMetallicRoughness.baseColorTexture;
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expect(baseColorTexture).toBeUndefined();
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expect(spy.calls.argsFor(0)[0].indexOf('Texture file is outside of the mtl directory and the secure flag is true. Attempting to read the texture file from within the obj directory instead') >= 0).toBe(true);
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expect(spy.calls.argsFor(1)[0].indexOf('ENOENT') >= 0).toBe(true);
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expect(spy.calls.argsFor(2)[0].indexOf('Could not read texture file') >= 0).toBe(true);
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});
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it('loads textures from root directory when the texture paths do not exist', async () => {
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const materials = await loadMtl(resourcesInRootMaterialPath, options);
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const material = materials[0];
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const baseColorTexture = material.pbrMetallicRoughness.baseColorTexture;
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expect(baseColorTexture.source).toBeDefined();
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expect(baseColorTexture.name).toBe('cesium');
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});
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it('loads textures from root directory when texture is outside of the mtl directory and secure is true', async () => {
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options.secure = true;
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const materials = await loadMtl(externalInRootMaterialPath, options);
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const material = materials[0];
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const baseColorTexture = material.pbrMetallicRoughness.baseColorTexture;
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expect(baseColorTexture.source).toBeDefined();
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expect(baseColorTexture.name).toBe('cesium');
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});
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it('alpha of 0.0 is treated as 1.0', async () => {
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const materials = await loadMtl(transparentMaterialPath, options);
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expect(materials.length).toBe(1);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeUndefined();
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expect(pbr.metallicRoughnessTexture).toBeUndefined();
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expect(pbr.baseColorFactor[3]).toEqual(1.0);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('ambient texture is ignored if it is the same as the diffuse texture', async () => {
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const materials = await loadMtl(diffuseAmbientSameMaterialPath, options);
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expect(materials.length).toBe(1);
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const material = materials[0];
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeDefined();
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expect(pbr.occlusionTexture).toBeUndefined();
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});
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describe('metallicRoughness', () => {
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it('creates default material', () => {
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const material = loadMtl._createMaterial(undefined, options);
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeUndefined();
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expect(pbr.metallicRoughnessTexture).toBeUndefined();
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expect(pbr.baseColorFactor).toEqual([0.5, 0.5, 0.5, 1.0]);
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expect(pbr.metallicFactor).toBe(0.0); // No metallic
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expect(pbr.roughnessFactor).toBe(1.0); // Fully rough
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expect(material.emissiveTexture).toBeUndefined();
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expect(material.normalTexture).toBeUndefined();
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expect(material.ambientTexture).toBeUndefined();
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expect(material.emissiveFactor).toEqual([0.0, 0.0, 0.0]);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('creates material with textures', () => {
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options.metallicRoughness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : diffuseTexture,
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ambientTexture : ambientTexture,
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normalTexture : normalTexture,
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emissiveTexture : emissiveTexture,
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specularTexture : specularTexture,
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specularShininessTexture : specularShininessTexture
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}, options);
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeDefined();
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expect(pbr.metallicRoughnessTexture).toBeDefined();
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expect(pbr.baseColorFactor).toEqual([1.0, 1.0, 1.0, 1.0]);
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expect(pbr.metallicFactor).toBe(1.0);
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expect(pbr.roughnessFactor).toBe(1.0);
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expect(material.emissiveTexture).toBeDefined();
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expect(material.normalTexture).toBeDefined();
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expect(material.occlusionTexture).toBeDefined();
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expect(material.emissiveFactor).toEqual([1.0, 1.0, 1.0]);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('packs occlusion in metallic roughness texture', () => {
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options.metallicRoughness = true;
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options.packOcclusion = true;
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const material = loadMtl._createMaterial({
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ambientTexture : alphaTexture,
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specularTexture : specularTexture,
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specularShininessTexture : specularShininessTexture
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}, options);
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.metallicRoughnessTexture).toBeDefined();
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expect(pbr.metallicRoughnessTexture).toBe(material.occlusionTexture);
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});
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it('does not create metallic roughness texture if decoded texture data is not available', () => {
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options.metallicRoughness = true;
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options.packOcclusion = true;
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const material = loadMtl._createMaterial({
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ambientTexture : ambientTexture, // Is a .gif which can't be decoded
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specularTexture : specularTexture,
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specularShininessTexture : specularShininessTexture
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}, options);
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.metallicRoughnessTexture).toBeUndefined();
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expect(material.occlusionTexture).toBeUndefined();
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});
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it('sets material for transparent diffuse texture', () => {
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options.metallicRoughness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : transparentDiffuseTexture
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}, options);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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it('packs alpha texture in base color texture', () => {
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options.metallicRoughness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : diffuseTexture,
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alphaTexture : alphaTexture
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}, options);
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const pbr = material.pbrMetallicRoughness;
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expect(pbr.baseColorTexture).toBeDefined();
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let hasBlack = false;
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let hasWhite = false;
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const pixels = pbr.baseColorTexture.pixels;
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const pixelsLength = pixels.length / 4;
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for (let i = 0; i < pixelsLength; ++i) {
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const alpha = pixels[i * 4 + 3];
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hasBlack = hasBlack || (alpha === 0);
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hasWhite = hasWhite || (alpha === 255);
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}
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expect(hasBlack).toBe(true);
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expect(hasWhite).toBe(true);
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expect(pbr.baseColorFactor[3]).toEqual(1);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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});
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describe('specularGlossiness', () => {
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it('creates default material', () => {
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options.specularGlossiness = true;
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const material = loadMtl._createMaterial(undefined, options);
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const pbr = material.extensions.KHR_materials_pbrSpecularGlossiness;
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expect(pbr.diffuseTexture).toBeUndefined();
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expect(pbr.specularGlossinessTexture).toBeUndefined();
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expect(pbr.diffuseFactor).toEqual([0.5, 0.5, 0.5, 1.0]);
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expect(pbr.specularFactor).toEqual([0.0, 0.0, 0.0]); // No specular color
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expect(pbr.glossinessFactor).toEqual(0.0); // Rough surface
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expect(material.emissiveTexture).toBeUndefined();
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expect(material.normalTexture).toBeUndefined();
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expect(material.occlusionTexture).toBeUndefined();
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expect(material.emissiveFactor).toEqual([0.0, 0.0, 0.0]);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('creates material with textures', () => {
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options.specularGlossiness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : diffuseTexture,
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ambientTexture : ambientTexture,
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normalTexture : normalTexture,
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emissiveTexture : emissiveTexture,
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specularTexture : specularTexture,
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specularShininessTexture : specularShininessTexture
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}, options);
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const pbr = material.extensions.KHR_materials_pbrSpecularGlossiness;
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expect(pbr.diffuseTexture).toBeDefined();
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expect(pbr.specularGlossinessTexture).toBeDefined();
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expect(pbr.diffuseFactor).toEqual([1.0, 1.0, 1.0, 1.0]);
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expect(pbr.specularFactor).toEqual([1.0, 1.0, 1.0]);
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expect(pbr.glossinessFactor).toEqual(1.0);
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expect(material.emissiveTexture).toBeDefined();
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expect(material.normalTexture).toBeDefined();
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expect(material.occlusionTexture).toBeDefined();
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expect(material.emissiveFactor).toEqual([1.0, 1.0, 1.0]);
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expect(material.alphaMode).toBe('OPAQUE');
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expect(material.doubleSided).toBe(false);
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});
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it('does not create specular glossiness texture if decoded texture data is not available', () => {
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options.specularGlossiness = true;
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const material = loadMtl._createMaterial({
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specularTexture : ambientTexture, // Is a .gif which can't be decoded
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specularShininessTexture : specularShininessTexture
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}, options);
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const pbr = material.extensions.KHR_materials_pbrSpecularGlossiness;
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expect(pbr.specularGlossinessTexture).toBeUndefined();
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});
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it('sets material for transparent diffuse texture', () => {
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options.specularGlossiness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : transparentDiffuseTexture
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}, options);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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it('packs alpha texture in diffuse texture', () => {
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options.specularGlossiness = true;
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const material = loadMtl._createMaterial({
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diffuseTexture : diffuseTexture,
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alphaTexture : alphaTexture
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}, options);
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const pbr = material.extensions.KHR_materials_pbrSpecularGlossiness;
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expect(pbr.diffuseTexture).toBeDefined();
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let hasBlack = false;
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let hasWhite = false;
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const pixels = pbr.diffuseTexture.pixels;
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const pixelsLength = pixels.length / 4;
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for (let i = 0; i < pixelsLength; ++i) {
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const alpha = pixels[i * 4 + 3];
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hasBlack = hasBlack || (alpha === 0);
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hasWhite = hasWhite || (alpha === 255);
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}
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expect(hasBlack).toBe(true);
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expect(hasWhite).toBe(true);
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expect(pbr.diffuseFactor[3]).toEqual(1);
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expect(material.alphaMode).toBe('BLEND');
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expect(material.doubleSided).toBe(true);
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});
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});
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});
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