The object you see below is a DWF file produced from a DWG file and a texture. It shows the capacity of FreeWheel from Autodesk to display a 3D model in a browser without any plugin. You can see it full screen. If you want better qualty, you can download the DWF file and display it in Autodesk viewer, DWGTrueView.
Note: if you read this page on a SmartPhone it’s likely you won’t be able to rotate the triangle in 3D, please try that on a deskop computer.