Autodesk^® Ecotect™ is a comprehensive conceptual building performance analysis tool that covers a wide range of simulation and analysis functions required to truly understand how a building design will operate and perform. Environmental design principles, such as solar, thermal, lighting, shadows & shading design, energy & building regulations, acoustics, air flow, are most effectively addressed in the early phases of the design process. With ECOTECT, architects and engineers can measure how fundamental criteria will affect building performance in the conceptual and detailed phases of design. Architects and designers work easily in 3D and apply all the tools necessary for an energy efficient and sustainable future.