Checkout Tgi3d which has developed a few plugins for sketchup.
- State-of-the-art plugins for Google SketchUp!
- Enables you to create accurate 3D models efficiently, either with or without photographs.
- These SketchUp plugins are free-form 3D modeling softwares, which allow you to create organic 3D models.
- Simple yet powerful calibration method!
- High quality photogrametry!
- NEW: Smart texturing!
- Available for both Windows and Mac OS X systems!