BIM mass model display method based on WebGL + VR

The invention discloses a BIM mass model display method based on WebGL + VR, and belongs to the technical field of building information models. The BIM mass model display method comprises the steps of establishing a BIM three-dimensional model through Revit software; adding the revitAPI related reference through VisualStudio software, and extracting a plug-in by using a building model information compiled by a C # language; performing deep extraction on 3D parameterized model information in Revit software, and outputting the 3D parameterized model information in an XML text format; restoring the three-dimensional building model to a Web end through a WebGL technology; previewing a js plug-in through a panorama of Three.js; and completing the design of the page through an HTML5 and based on a JavaScript language; and processing the data through a JSON (JavaScript Object Notation) text format, associating each floor room name with a name in a navigation system, and associating each floor room id with a display