Do you mean transforming a sketch to a 3D-looking image(i.e not a 3d mesh model): If so Stable diffusion with control net can do that using a good prompt and t

Do you mean transforming a sketch to a 3D-looking image(i.e not a 3d mesh model): If so Stable diffusion with control net can do that using a good prompt and the SDXL model. Do you mean you have an existing photo of something and would like to add a realistic setting. There's a lot of ways to do this, but probably the easiest right now is the Generative Fill feature in Adobe Photoshop (beta).