You might call it BIM for the masses, or you might call it BIMSight, as its developer does, but the deal is that a 3D modeling software vendor is now distributing a powerful, free viewer that users ...

SKP is a 3D file format that is native to SketchUp software, a 3D modeling software. Like any 3D format, SKP files also store 3D models, and they consist of sketches, layers, model information, ...