Sefaira Please use the Sefaira category to share knowledge, make friends, ask questions. PreDesign for SketchUp Welcome to the PreDesign Forum Page. (predesign.sketchup.com) Use this area to: Scan Essentials Scan Essentials is a Trimble Extension for SketchUp which is included with your Studio Subscription. Feel free to post your questions here, or answer them, or share what you’ve done or what you’re planning to do. If it has anything to do with Scan Essentials, and potentially anything point cloud related, post it here. V-Ray for SketchUp V-Ray for SketchUp is a 3rd party extension that brings rendering functionality to SketchUp.