A method for rendering a 3D object comprises receiving data for a first 3D object at a first resolution, and receiving data for a second 3D object at a second resolution, lower than the first resolution. Each shared border between the first 3D object and the second 3D object includes one or more shared edges that include corresponding edges of the first and second 3D objects. Relative resolutions are identified for each shared edge of the shared border. An adjusted version of the first 3D object is generated, wherein for at least some shared edges of the shared border, the resolution of the edge of the first 3D object is adjusted to be equal to the corresponding edge of the second 3D object. The adjusted version of the first 3D object is rendered, and the second 3D object is rendered.