Rendering Definition Rendering is the process of generating a final digital product from a specific type of input. The term usually applies to graphics and video, but it can refer to audio as well. 1. Graphics 3D graphics are rendered from basic three-dimensional models called wireframes. A wireframe defines the shape of the model, but nothing else. The rendering process adds surfaces, textures, and lighting to the model, giving it a realistic appearance. For example, a 3D drawing applica...