Career
Vidmar played in youth categories of Geoplin Slovan in Slovenia. He made his professional debut with Jance STZ in the Slovenian minors during the 2003-2004 season. In 2005, he returned to Slovan.
In 2007, he signed a multi-year deal with the Turkish club Fenerbahçest
On September 8, 2009, he was loaned to Union Olimpija, of his native Slovenia, for the 2009-2010 season. On April 2, 2010, he left Olimpija and returned to Fenerbahçest
On July 11, 2012, he was loaned to Beşiktaş for the 2012-2013 season. Foreign the 2013-2014 season he returned to Fenerbahçest
In early February 2014, he suffered a season-ending injury.
In October 2014, he signed Darüşşafaka for the 2014-2015 season. In July 2015, he joined the New Orleans Pelicans for the 2015 National Basketball Association Summer League. He didn"t make the roster and on July 15, 2015, he signed with Banvit.
He was a Slovenia national team player and played over 100 times.
He has been with national team in EuroBasket 2007 and 2010 International Basketball Federation World Championship.