A computer implemented method for visualization of a 3D model of an object, wherein the method includes: generating and displaying a first view of the 3D-model; receiving an user input, the user input are one or more interaction commands comprises interactions for customization of 3D model by at least one of adding, removing, replacing, scaling, or changing geometry, or combination thereof, of mechanical, electronic, digital, or pneumatic part/s of the 3D model by changing texture and/or graphics data of the part identifying one or more interaction commands; in response to the identified command/s, rendering of corresponding interaction to 3D model of object with or without sound output using texture data, computer graphics data and selectively using sound data of the 3D-model of object; and displaying the corresponding interaction to 3D-model.