Function getMaterials

src/webgl/loading.js:372–415

(lines)

    model.gid = `${path}|${normalize}`;

    async function getMaterials(lines) {
      const parsedMaterialPromises = [];

      for (let line of lines) {
        const mtllibMatch = line.match(/^mtllib (.+)/);

        if (mtllibMatch) {
          // Object has material
          let mtlPath = '';
          const mtlFilename = mtllibMatch[1];
          const objPathParts = path.split('/');
          if (objPathParts.length > 1) {
            objPathParts.pop();
            const objFolderPath = objPathParts.join('/');
            mtlPath = objFolderPath + '/' + mtlFilename;
          } else {
            mtlPath = mtlFilename;
          }

          parsedMaterialPromises.push(
            fileExists(mtlPath).then(exists => {
              if (exists) {
                return parseMtl(mtlPath);
              } else {
                console.warn(`MTL file not found or error in parsing; proceeding without materials: ${mtlPath}`);
                return {};

              }
            }).catch(error => {
              console.warn(`Error loading MTL file: ${mtlPath}`, error);
              return {};
            })
          );
        }
      }

      try {
        const parsedMaterials = await Promise.all(parsedMaterialPromises);
        const materials = Object.assign({}, ...parsedMaterials);
        return materials;
      } catch (error) {
        return {};
      }
    }

    try{
      if (fileType.match(/\.stl$/i)) {