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Aditivne tehnologije v zadnjem desetletju beležijo porast uporabe v industrijskih procesih, kjer se jih uporablja tudi za izdelavo funkcionalnih izdelkov, zato je poznavanje lastnosti teh izdelkov ključnega pomena. Med pomembnejše lastnosti spada tudi kakovost površine, ki je odvisna od teksture. Izvedena je bila analiza površinskih tekstur štirih vzorcev s pomočjo 3D mikroskopa, ki lahko s principom variabilnega fokusa zajame podatke o geometriji površine. Rezultati analize površin štirih vzorcev, izdelanih z različnimi aditivnimi tehnologijami, so pokazali, da je kakovost površine odvisna od orientacije površine v prostoru in da je metodologija primerna za analizo površin, izdelanih z različnimi aditivnimi tehnologijami. The additive manufacturing industry has grown fast over the last decade. Additive manufacturing technology is used to produce also fully functional products where knowing their main properties is crucial. One of them is surface quality, which depends on surface texture. In this thesis, surface texture of four samples, made by four different additive manufacturing technologies were analysed using a focus-variation 3D microscope. Results showed that the surface quality depends on the surface orientation in the built chamber. It was also proven that focus-variation 3D microscopy is suitable for analysis of surfaces made with different additive manufacturing techniques.