One of the products available from Autodesk is the VIZ software, a program for sophisticated visualisations. The luminaire data for Autodesk VIZ and also for 3ds Max include a 3D model of the luminaire. This includes surface properties, textures and the possible motion of components (inverse kinematics). Inverse kinematics allows directional luminaires to be aligned through a few simple adjustments. A light simulation requires additional photometric data. Autodesk VIZ and 3ds Max enable radiosity calculations to produce numerically accurate light simulations.