Today's life is hard to imagine without multimedia. It is found in newspapers, magazines, websites, advertisements, posts on social networks, computer games, virtual walks, movies, etc. One of the branches of multimedia is 3D modeling. In addition to computer games, 3D is also used in animation and visualization of objects and spaces that do not yet exist, so that potential clients can more easily see their future residential or business premises, hotel or cruise ship. In order for such a space to look like it is really necessary to make detailed models, carefully choose and adjust textures and pay attention to lighting. Only when these three criteria are met can the visualization be said to be successful. Modeling can be done in various programs, and this work will be done in Blender. The final paper will explain the basic terms related to polygonal modeling, texturing and rendering in Blender, which will be applied in creating a realistic interior. The idea is to show all the advantages and possibilities of this free program, which is very easy to learn considering the amount of videos on YouTube. The focus will be on creating realistic models of furniture and details in the space. In addition, we will go through basic texturing and lighting, which will ultimately contribute to a more realistic appearance of the scene itself. They will create a rendering of a part of the interior, which consists of a kitchen with an island, a living room and a dining room. The first step is making the necessary models of furniture, walls, doors, windows and floors. This is followed by the texturing of these models. After that, the lighting, the environment seen through the window is arranged and the final step is to render the scene using the camera.