Hello! The realism of 3D rendering depends on several factors. Lighting is the key, as the right shadows and highlights make the scene come alive. Textures are also important – high-quality materials with the right maps (bump, roughness) add depth. Post-processing helps to improve colors and contrast. V-Ray and Corona are used in 3d renderings – these are top solutions for architectural visualization https://render-vision.com/ What program have you tried?

Thanks for the detailed answer! Now I understand how important lighting and textures are for realism. There is so much I still need to learn.