This paper shows inovative way of measuring rigid and deformable products. It consists of intoduction and three practical examples. Practical part shows workflow for optical positioning, virtual clamping and virtual clamping with gravity compensation. Introduction into optical metrology informs reader about basic working principles of ATOS 3D scanner and other measuring systems that were used in practical part of this paper. First practical part shows optical positioning of fixture used for 3D scanning. The goal of optical positioning is reducing deviation of real fixture compared with CAD data. Optical positioning is used for precise assembly of the parts in space. Tracking position of component in respect to reference, in live view, deviation of the real part in respect to nominal data can be visualised in a color plot. Also, deviation of surface points is shown in real time so position of each component can be adjusted acording to nominal data. Second practical part shows measuring rigid sheet metal part in 3D scanning fixture. Main assumption in this part is that temperature and gravity does not have significant influence on geometrie of the part. Procedure called virtual clamping is used to reduce deviation of clamping point to zero using FEM simulation. Holding points are defined as RPS points of the part. Result of the simulation is deviation of clamping point inside iteration tolerance and clamping force. To verify results of virtual clamping, clamping force was aplied on the sheet metal and the part was measured to compare virtually and mechanically clamped part. Third practical part shows solution from GOM for measuring deformable parts. Relatively large and thin sheet metal parts, as well as plastic parts, are usually measured on fixtures for measuring or gauges. While part is being measured, influence of gravity can cause deformation of the part. Using procedure called virtual clamping with gravity compensation, part is measured in the free state. After measuring in free state, influence of gravity is removed using FEM simulations. Next step is translating the part into RPS alignment and adding influence of gravity in assembly situation. Final step is virtual clamping using predefined clamping points and reducing deviation of clamping points inside iteration tolerance zone.