 Graphisoft EcoDesigner helps architects to use virtual building information to evaluate energy performance, thus the sustainability of the building from the very first concept design.EcoDesigner allows architects to analyze their design for energy efficiency, providing feedback on the building's estimated energy performance.BIMx, formerly marketed as Virtual Building Explorer is an interactive BIM model presentation tool, which allows the presentation of entire building models without the need for installing ArchiCAD or other BIM authoring tool.