This 3D model was originally created with Sketchup 6 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Castillo de San Romualdo. 3ªEv work. by Ismael Serrano and Alejandro Rubio Barba Orce in the course of ITP 2nd Bach. Technology. Professor Jesus Gonzalez Riancho Mule. Secondary Education Institute Sancti Petri, San Fernando Cadiz, Spain