While visual effects companies can offer previsualization services, today many studios hire companies which cater solely to previsualization for large projects. Common software packages are used for previs by these companies, such as Newtek's Lightwave 3D, Autodesk Maya, MotionBuilder and Softimage XSI. Some directors prefer to do previsualization themselves using inexpensive, general purpose 3D programs that are less technically challenging to use such as iClone, Poser, Daz Studio, Vue, and Real3d, while others rely on the dedicated but user-friendly 3D previsualization programs FrameForge 3D Studio which (along with Avid's Motion Builder) won a Technical Achievement Emmy for representing an improvement on existing methods are so innovative in nature that they materially have affected the transmission, recording, or reception of television.