Trimble, which has the SketchUp family of 3D modeling tools, has added a visual search tool to let users find pre-built models based on an image rather than trying to hit on something with a text ...

This means you can use Sketchup to quickly model props for Left 4 Dead models, or even entire level geometries, then use the Hammer editor to add the finishing touches, like scripting and AI ...

I'm serious. The basic tools found in SketchUp's are the same ones found in the good old MS paint. There is the line tool, shape tool, eraser, paint bucket and everything else. The only things ...