I Already Have A 3D Model; Can’t You Just Render It And Exclude The Cost Of 3D Modeling?

Most of my clients provide 3D models. However, due to the compatibility issues, model quality, and the resolution of textures applied, the 3D files cannot be used directly. Since this will affect the quality of the final image, it is still better to start the model from scratch. I can use the provided model as a reference to build a more detailed model.